Bret has a fish tank that holds 320 liquid ounces of water. On average, the water evaporates from the tank at a rate of 3.84 ounces per day. Bret went on vacation for 2 weeks, and asked a friend to feed his fish. The fish tank was full of water when Bret left. To the nearest hundredth, how many liquid ounces of water were left in the tank when Bret returned from his vacation?

Answers

Answer 1

Answer:

266.24

Step-by-step explanation:

y=320-3.84d

d represents number of days

320-3.84(14)

=320-53.76

=266.24

Answer 2

Answer:

266.24 ounces

Step-by-step explanation:

2 weeks = 7 x 2 = 14 days

Initial Amount = 320 ounce

Rate = 3.84 ounces/day

Amount of water left

= 320 - 3.84(14)

= 266.24 ounces


Related Questions

15. Divide the polynomial x^3 + x^2 - 2x + 3 by (x - 1).​

Answers

Answer:

x² + 2x + [3\x - 1]

Step-by-step explanation:

Since the divisor is in the form of x - c, use what is called Synthetic Division. Remember, in this formula, -c gives you the OPPOSITE terms of what they really are, so do not forget it. Anyway, here is how it is done:

1| 1 1 -2 3

↓ 1 2 0

------------------

1 2 0 3 → x² + 2x + [3\x - 1]

You start by placing the c in the top left corner, then list all the coefficients of your dividend [x² + 5x - 36]. You bring down the original term closest to c then begin your multiplication. Now depending on what symbol your result is tells you whether the next step is to subtract or add, then you continue this process starting with multiplication all the way up until you reach the end. Now, when the last term is 0, that means you have no remainder, which in this case is a 3, so what you is set the divisor underneath the remainder of 3. Finally, your quotient is one degree less than your dividend, so that 1 in your quotient can be an x², 2 becomes 2x, and the remainder of 3 is set over the divisor, giving you the other factor of x² + 2x + [3\x - 1].

If you are ever in need of assistance, do not hesitate to let me know by subscribing to my channel [USERNAME: MATHEMATICS WIZARD], and as always, I am joyous to assist anyone at any time.

Jennifer's bill for 6 cans of grape juice and 4 cans of apple juice was $13.10. When she got home she found out that she should have bought 4 cans of grape juice and 6 cans of apple juice. Although she mixed up the order, she did save 60 cents. What is the cost per can of apple and grape juice
Solve the system using substitution and elimination.
Convert your equations to slope intercept form and identify the variables for your x and y axes. Then graph.
SHOW ALL WORK

Answers

Answer:

Part 1) The system is solved using elimination

The cost  per can of grape juice is [tex]\$1.19[/tex] and the cost per can of apple juice is [tex]\$1.49[/tex]

Part 2) The system is solved using substitution

The cost  per can of grape juice is [tex]\$1.19[/tex] and the cost per can of apple juice is [tex]\$1.49[/tex]

Part 3) The system is solved by graphing

The graph in the attached figure

Step-by-step explanation:

Part 1) Solve the system by elimination

Let

x----> the cost per can of grape juice

y----> the cost per can of apple juice

we know that

[tex]6x+4y=13.10[/tex] -----> equation A

[tex]4x+6y=13.10+0.60[/tex]

[tex]4x+6y=13.70[/tex]  -----> equation B

Solve the system by elimination

Multiply the equation A by -6 both sides

[tex]-36x-24y=-78.6[/tex] -------> equation C

Multiply the equation B by 4 both sides

[tex]16x+24y=54.8[/tex] -------> equation D

Adds equation C and equation D

[tex]-36x-24y=-78.6\\16x+24y=54.8\\----------\\-36x+16x=-78.6+54.5\\-20x=-23.8\\x=1.19[/tex]

Substitute the value of x in the equation A

[tex]6(1.19)+4y=13.10[/tex]

[tex]4y=5.96[/tex]

[tex]y=1.49[/tex]

therefore

The cost  per can of grape juice is [tex]\$1.19[/tex]

The cost per can of apple juice is [tex]\$1.49[/tex]

Part 2) Solve the system by substitution

Let

x----> the cost per can of grape juice

y----> the cost per can of apple juice

we know that

[tex]6x+4y=13.10[/tex]    

[tex]4y=-6x+13.10[/tex]

[tex]y=-1.5x+3.275[/tex] -----> equation A

[tex]4x+6y=13.10+0.60[/tex]

[tex]4x+6y=13.70[/tex]  

[tex]6y=-4x+13.70[/tex]

[tex]y=-(4/6)x+13.70/6[/tex]

[tex]y=--0.67x+2.28[/tex] -----> equation B

Substitute equation B in equation A and solve for x

[tex]-0.67x+2.28=-1.5x+3.275[/tex]

[tex]1.5x-0.67x=3.275-2.28[/tex]

[tex]0.83x=0.995[/tex]

[tex]x=1.19[/tex]

Find the value of y

Substitute the value of x in the equation A

[tex]y=-1.5(1.19)+3.275=1.49[/tex]

therefore

The cost  per can of grape juice is [tex]\$1.19[/tex]

The cost per can of apple juice is [tex]\$1.49[/tex]

Part 3) Solve the system by graphing

we have

[tex]y=-1.5x+3.275[/tex] -----> equation A

[tex]y=-(4/6)x+13.70/6[/tex] -----> equation B

Remember that

The solution of the system of equations is equal to the intersection point both lines

The solution is the point [tex](1.19,1.49)[/tex]

see the attached figure

therefore

The cost  per can of grape juice is [tex]\$1.19[/tex]

The cost per can of apple juice is [tex]\$1.49[/tex]

tents hold 2, 3, 5, 6, or 12 people. how many combinations of tents are possible to sleep 32 all tents are fully occupied and exactly one 12 person tent is used.​

Answers

there would be 12 combinations

Answer:

12

Step-by-step explanation:

We are given that tent hold 2,3,5,6 or 12 people.

We have to find the combinations of tents are possible to sleep 32 all tents are fully occupied and exactly one 12 person tent is used.

If one 12 person tents is used then remaining people=32-12=20

Therefore, 20 people that must be in other tents.

To place 20 persons in combination of 2,3,5 and 6.

20=5+5+5+5

20=5+5+5+2+3

20=6+6+6+2

20=2(10)=2+2+....+2(10 times)

20=5+5+2(5)(5 times add 2)

20=6+6+2(4) (4 times add 2)

20=3+3+3+3+3+3+2

20=3+3+3+3+3+5

20=3+2+6+5+2+2

20=3+3+3+3+6+2

20=3+3+5+5+2+2

20=6+6+3+5

Hence, there are 12 possible combination of tents  to sleep 32  all tents are fully occupied and exactly one 12 person tents is used.

Is (1, 2) a solution of the system y > 2x and x+y<3?
Select one:

a. Yes, because (1, 2) is a solution to both inequalities.

b. Yes, because (1, 2) is the point of intersection of the two boundary lines of
this system.

c. No, because (1, 2) is a solution to only one of these inequalities.

d. No, because (1, 2) is not a solution to either inequality.

Answers

Answer:

d

Step-by-step explanation:

To determine if (1, 2) is a solution to the system

Substitute x = 1, y = 2 into the inequalities and check their validity.

y > 2x → 2 > 2 ← incorrect statement

x + y < 3

1 + 2 < 3 → 3 < 3 ← incorrect statement

(1, 2) is not a solution to either inequality → d

Help needed !!! Use synthetic division to find the quotient and remainder!!!

Answers

For this case we must build a quotient that multiplied by the divisor, is eliminating the terms of the dividend until you reach the remainder of the division. It must be fulfilled that:

Dividend = Quotient * Divider + Remainder

Answer:

See attached image

Option D

A bag contains an orange tile, a yellow tile, and a purple tile. Two tiles are drawn randomly without replacement. If the first tile is yellow, find the probability of drawing a second tile that is orange.


PLEASE HELP ASAP IM TRYING TO GO TO RECESS LOL

Answers

Answer:

It's a 50% chance

Step-by-step explanation:

Answer:

1/3 most likely

Step-by-step explanation:

because you take out one tile and it only has one of each color so there are only three left so 1/3

Select all of the values that are solutions to this inequality.

Answers

Answer:

12, 18.

Step-by-step explanation:

2x-5 < 33

2x < 38

x < 38/2

x < 19

Type the correct answer in each box. Use pi= 22/7, and round your answers to the nearest interger. The perimeter of the largest cross section of a sphere is 88 centimeters. The radius is 14 cm. The volume of the sphere is __ cm^3

Answers

Answer:

11,499 cm^3

Step-by-step explanation:

The volume of a sphere is given by the formula  [tex]V=\frac{4}{3}\pi r^3[/tex]

The radius is given as 14, we plug it into the formula and find the volume:

[tex]V=\frac{4}{3}\pi r^3\\V=\frac{4}{3}(\frac{22}{7}) (14)^3\\V=11498.66[/tex]

rounded to nearest integer, the volume is 11,499

Answer:

r=14 cm

V=11499 cubic cm

Step-by-step explanation:

If the radius of the sphere is r cm, then the perimeter of the largest cross section is the circumference of the circle qith radius r. Thus,

[tex]88=2\pi r,\\ \\r=\dfrac{88}{2\pi}=\dfrac{44}{\pi}=\dfrac{44}{\frac{22}{7}}=\dfrac{44}{1}\cdot \dfrac{7}{22}=14\ cm.[/tex]

Thvolume of the sphere can be calculated using formula

[tex]V=\dfrac{4}{3}\pi r^3.[/tex]

Since r=14 cm, we get

[tex]V=\dfrac{4}{3}\cdot \dfrac{22}{7}\cdot 14^3=\dfrac{4\cdot 22\cdot 2\cdot 14^2}{3}=\dfrac{34496}{3}\approx 11499\ cm^3.[/tex]


Which statements are true about finding the volume of the soup cans? Check all that apply.
A) The diameter is squared to find the area of the base of a cylinder.
B) The volume is the area of the base times the height.
C) Given the radius or the diameter, you can calculate the area of the base of a cylinder.
D) The height of a cylinder is the distance between the 2 parallel bases.
E) The radius is half the distance of the height.

Answers

Answer:

the answers are B, C, and D.

Answer:

The given item soup can is a cylinder.

The volume of the cylinder is given as :

[tex]V=\pi r^{2} h[/tex]

Here 'h' is the height and 'r' is the radius.

So, the true statements are:

B) The volume is the area of the base times the height - The base of the cylinder is circular and the area of the circle is [tex]\pi r^{2}[/tex], so the volume is the area of base multiplied by height.

C) Given the radius or the diameter, you can calculate the area of the base of a cylinder - Yes as the area is [tex]\pi r^{2}[/tex] where 'r' is the radius.

D) The height of a cylinder is the distance between the 2 parallel bases. Yes this is right.

Drag the values to order them from least to greatest, with the least at the top.

Answers

Answer:

√143 = 11.958

√79+√63 = 16.825

4π = 12.66

Im pretty sure this is correct since I used a calculator. Hope it helps

when you save, you earn interest on your savings and even earn interest in the previous years interest what is the name for this type of interest brainly

Answers

Answer:

A

Step-by-step explanation:

The type of interest where you earn interest on your savings and even earn interest in the previous years interest is compound interest.

What is compound interest?

Compound interest is when both the amount saved and the interest already accured earn interest at the next date interest is being paid. Simple interest rate is the interest that is paid only on the amount saved.

To learn more about compound interest, please check: https://brainly.com/question/26367706

Need help with this question in the image

Answers

Answer:

s     a

6    3

22  1

30  0

Step-by-step explanation:

Download song .50

Download album = 4

Let s = number of songs

a = number of albums

She can spend 15 dollars

.5s +4a =15

If she downloads 6 songs, let s=6

.5(6) +4a = 15

3+4a = 15

Subtract 3 from each side

3-3+4a = 15-3

4a = 12

Divide by 4

4a/4 =12/4

a=3

She can buy 3 albums

If she downloads 1 album, let a=1

.5(s) +4(1) = 15

.5s +4=15

Subtract 4 from each side

.5s +4-4=15-4

.5s = 11

Divide by .5

.5s/.5 = 11/.5

s = 22

She can download 22 songs

If she downloads 30 songs, let s=30

.5(30) +4a = 15

15+4a= 15

Subtract 15 from each side

15-15 +4a = 15-15

4a=0

a=0

The lions little league team drinks a gallon of Gatorade each game. Every player gets a cup as a serving. 1 cup =1/16 gallon. The last game, The lions only used 1/2 gallon of Gatorade. How many cups of Gatorade were served to the players during the last game?

Answers

Answer:

8 cups

Step-by-step explanation:

8/16 equals 1/2 gallon

The number of cups of Gatorade served to the players during the last game was 8 cups.

To solve the problem, we need to determine how many cups are in half a gallon, given that 1 cup is equal to 1/16 of a gallon.

First, we establish the conversion factor between cups and gallons:

1 cup = 1/16 gallon

Now, we need to find out how many cups are in 1/2 gallon. To do this, we multiply the amount of Gatorade used in the last game by the conversion factor:

Cups served = (1/2 gallon) * (16 cups / 1 gallon)

Performing the multiplication:

Cups served = 1/2 * 16

Cups served = 8 cups

Therefore, 8 cups of Gatorade were served to the players during the last game.

Percent Increase



Example 1: Ann works in a supermarket for $10.00 per hour. If her pay is increased to $12.00, then what is her percent increase in pay?


Analysis: When finding the percent increase, we take the absolute value of the difference and divide it by the original value. The resulting decimal is then converted to a percent.

Answers

Answer:

20% increase

Step-by-step explanation:

Percent increase = (difference) / original *100 percent

                             = (12-10)/10 * 100percent

                             = 2/10 *100 percent

                             = 1/5 * 100 percent

                              =.2 * 100 percent

                              = 20%

16x to the 3rd / y * 5 y to the second / xy

Answers

Answer:

Final answer is [tex]80x^2[/tex].

Step-by-step explanation:

Given expression is [tex]\frac{16x^3}{y}\cdot\frac{5y^2}{xy}[/tex].

Now we need to simplify this expression as shown below:

[tex]\frac{16x^3}{y}\cdot\frac{5y^2}{xy}[/tex]

[tex]=\frac{80x^3\cdot y^2}{y\cdot xy}[/tex]

[tex]=\frac{80x^3\cdot y^2}{xy^2}[/tex]

[tex]=\frac{80x^3}{x}[/tex]

[tex]=80x^2[/tex]

Hence final answer is [tex]80x^2[/tex].

dwight is 3 years older than twice his sisters age . how old is dwight (write the expression)​

Answers

Answer:

Step-by-step explanation:

let dwight represent x nd his sister represent y

y+3x2=x

Answer:

I did not know that Dwight Schrute has a sisterrrrr

Step-by-step explanation:

Um just the other dude brainliest

Segments Ra and Ny are best described as which of the following

Answers

Answer:

B

Step-by-step explanation:

B). RA and NY are perpendicular segments

Answer:

The correct answer option is B. Perpendicular segments.

Step-by-step explanation:

We are given two segments RA and NY and we are to determine whether which of the given answer options describe them the best.

Since the angles ∠RDA and ∠NDY are perpendicular angles and they lines RA and NY intersect each other at point D so the formed segments are also perpendicular.

Therefore, the option which best describes this is B. Perpendicular segments.

g(r)=−(r+11)(r+14)

1) What are the zeros of the function?

Write the smaller r first, and the larger r second.

smaller r____

larger r_____

2) What is the vertex of the parabola

(___,____)

Answers

1) What are the zeros of the function?

smaller r: -11, larger r: -14

2) What is the vertex of the parabola

Vertex: (-12.5, 3)

1. Zeros:

The zeros of the function occur when G(r) = 0. So we need to solve the equation:

-(r + 11)(r + 14) = 0

Since the product of two factors is zero when one or both factors are zero, we can set each factor equal to zero and solve for r:

r + 11 = 0 --> r = -11 (smaller r)

r + 14 = 0 --> r = -14 (larger r)

2. Vertex:

The function is given in factored form, which makes finding the vertex a bit easier. The vertex of a parabola in factored form is exactly between the two zeros.

Therefore, the x-coordinate of the vertex is:

(smaller r + larger r) / 2 = (-11 - 14) / 2 = -12.5

To find the y-coordinate (i.e., the function's value at the vertex), we can plug the x-coordinate of the vertex back into the function (G(r)). However, since the function is multiplied by -1, it might be easier to use one of the original zeros (say, r = -11).

G(-11) = -(-11 + 11)(-11 + 14) = 3 (notice how the negative sign cancels out)

How is that equal to 10.17378? How do you write that on a calculator? Sorry, haven’t learnt logarithms.

Answers

Answer:

Step-by-step explanation:

The log is basically saying: 13/5 to what exponent gives you 50 000/3.

and the exponent is approximated at 10.17378.

Find the mean for each set of data. Round to the nearest tenth if necessary.
5, 10, 10, 20, 20, 5, 20, 20, 15, 15​

Answers

Answer:

14

Step-by-step explanation:

Mean = (5+10+10+20+20+5+20+20+15+15)÷10

= 140÷10

= 14

An elevator in a hotel moves at 20 feet per second. leaving from the ground floor, its height in feet after t seconds is given by the formula h(t)=20t. A bolt comes loose in the elevator shaft above, and its height in feet after falling for t seconds is given by h(t)=-16t^2+200. At what time and at what height does the bolt hit the elevator?

Answers

Answer:

After 7.5 seconds and a height of 0

Step-by-step explanation:

The time taken for the bolt to hit the elevator is 3 seconds, at a height of 60 feet.

Given that the elevator height is h(t)=20t while the bolt height is given by h(t)=-16t² + 200.

At the point when the bolt hit the elevator, they would be at the same height, hence:

-16t² + 200 = 20t

16t² + 20t - 200 = 0

t = -4.2 or t = 3

Therefore the time taken for the bolt to hit the elevator is 3 seconds, the height is:

h(3) = 20(3) = 60 feet

The time taken for the bolt to hit the elevator is 3 seconds, at a height of 60 feet.

Find out more at: https://brainly.com/question/11600459

Distance formula: Does the point (2, rt sqr. 6 ) lie on the circle shown? Explain.

Answers

Answer:

Thus, the fourth answer choice is the correct one

Step-by-step explanation:

Let's check this, using the Pythagorean Theorem:

"Yes, the distance from (0, 0) to (2, square root 6 ) is 3 units."

Does 2² + (√6)² = 3²?

Does 4 + 6 = 9?  NO.   .

NEED HELP ASAP!!
20 POINTS and please explain if you can.

Answers

Answer:

x = 12 or A

Step-by-step explanation:

Tangents from an exterior point to the circumference of a circle are equal

Since one of the tangents = 17, the other one must as well

x + 5 = 17            Subtract 5 from both sides.

x + 5-5 = 17-5

x = 12

The answer is A

Please help!!!

Use the equation below to find y, if m=8,x=4, and b=6
Equation: y=mx-b

Answers

Answer:

y=26

Step-by-step explanation:

We just subsitiute.

y=8(4)-6

8*4=32

y=32-6

y=26

Use the given information to write an equation of the circle.
center at ​(-7​,-3​), radius 2

Answers

The equation of a circle is written as (x-h)^2 +(y-k)^2 = r^2

h and K are the center points of the circle and r is the radius.

replace the letters with the provided center and radius:

(x- (-7))^2 + (y- (-3))^2 = 2^2

Simplify:

(x+7)^2 + (y+3)^2 = 4

The numbers 4 through 14 are placed in a
bowel and drawn at random then replaced
after being drawn. What is the probability of
drawing the number 14 and then a number
less than 12?​

Answers

The probability of drawing the number 14 is 1/10 (because there are 10 different numbers to pick from). The probability of drawing a number less than 12 is 8/10 (or 4/5 simplified). Multiply the fractions: 1/10 *4/5 = 4/50. Simplify to 2/25. The probability of drawing 14 and then a number less than 12 is 2/25.

Simplify the rational expression x^2-4/x^2+5x+6. State any restrictions on the variable.

Answers

Answer:

The correct answer is option B.

Step-by-step explanation:

The given rational expression is:

[tex]\frac{x^2-4}{x^2+5x+6}[/tex]

Factor the numerator and the denominator:

[tex]\frac{x^2-2^2}{x^2+2x+3x+6}[/tex]

Factor the numerator using difference of two squares and the denominator using factorization by grouping.

[tex]\frac{(x-2)}{x(x+2)+3(x+2)}[/tex]

[tex]\frac{(x-2)(x+2)}{(x+2)(x+3)}[/tex]

This function is defined if and only if the denominator is not zero.

That is: (x+3)(x+2)≠0.

x≠-2,x≠-3

We simplify now to obtain:

[tex]\frac{x-2}{x+3}[/tex]

The correct choice is the second option.

Option B is correct.

I just took the semester review.

Given: Ray BC bisects angle ABD.

Which pair of angles must be congruent?
A) ∠ABD & ∠EBD
B) ∠ABC & ∠DBE
C) ∠ABC & ∠DBC
D) ∠ABD & ∠CBDill mark brainliest if correct and give 50 pts.

Answers

Congruent is the same size and same shape. When a ray bisects an angle, the two newly created angles will be congruent, since the ray went right in the middle of the first angle (so in this case, ABC and DBC will be congruent)

Answer: C) ∠ABC & ∠DBC

Step-by-step explanation:

When a ray bisect an angle , then it divided the original angle into two congruent angles.

We are given that Ray BC bisects angle ABD.

Then, Ray BC divides ∠ABD into two congruent angles.

From the picture, The angle formed by it : ∠ABC & ∠DBC

So  ∠ABC & ∠DBC must be congruent.

Hence, the pair of angles must be congruent : ∠ABC & ∠DBC

Convert 67,000 pounds to tons. Choose the words and numbers to complete the statements.

Answers

Answer: 33.5 tons

Direct conversion formula: 1 Tons (metric) / 2204.5855379189 = 1 Pounds

Opposite conversion: 67000 Pounds to Tons (metric)

Each person in the vale family drinks 481/2 ounces of water a day how much water will each person drink in 7 days

Answers

Each person in the Vale family will drink a total of 339.5 ounces of water over the course of 7 days.

The student is asking how much water in ounces each person in the Vale family will drink over the span of 7 days if each person drinks 48.5 ounces of water daily.

To find the total amount of water consumed by one person in 7 days, we multiply the daily intake by the number of days:

48.5 ounces/day imes 7 days = 339.5 ounces

So, each person will drink a total of 339.5 ounces of water in 7 days.

Other Questions
Find the surface area of the regular hexagonal prism. Round your answer to the nearest hundredth. In a command economy, how are the prices of goods and services determined? A)business owners B)the central government C)market forces of supply and demand D)independent agencies and independent regulators Identify the following as exponential or linear and growth or decay Find the limit of the function by using direct substitution. limit as x approaches zero of quantity x squared minus two. What was the result of the freedom rides?a. none of the above are true.b. all of the students made it successfully to new orleans, although they endured violence along the way.c. the students were able to get the buses desegregated after some legal effort.d. the remaining students who persevered through alabama were promptly arrested in mississippi? Match the following. 1. A mixture that does not have a uniform composition and the individual components remain distinct. polar 2. A mixture that does have a uniform composition throughout and is always in the same state. insoluble 3. A substance that will not dissolve in a solvent. homogeneous 4. A homogeneous mixture saturated 5. A molecule with no internal charge variation due to bonding. solution 6. a molecule with an uneven distribution of charge due to unequal sharing of electrons during bonding nonpolar 7. A solution which has dissolved as much solute as it can at a particular temperature. unsaturated 8. A solution which is still able to dissolve solute. heterogeneous Which comparison would best support the idea presented in this paragraph? (17 points) Determine if line AB is tangent to the circle The perimeter of a triangle can be found by adding the lengths of its three sides. If the three sides of a triangle measure 3.4 inches, 5 inches, and 7.32 inches, what is the perimeter of the triangle. 16.06 in. 16.47 in. 13.41 in. 16.38 in. kate has 2/3 yards of fabric to make small flags each flag requires 1/6 yards of fabric how many flags cane kate make suppose that F(x)=x^3 and G(x)=-2x^3 you find a triangle that has an area of 10 sq ft. the height of the triangle is 10 feet. what is the length of the base of the triangle? The function y=3.75 + 1.5(x-1) can be used to determine cost in dollars for a taxi ride of x miles. What is the rate of change of the cost in dollars with respect to the number of miles? Studies in which the suprachiasmatic nucleus (SCN) was surgically removed from laboratory mammals demonstrated that the SCN is required for circadian rhythms. But these studies did not reveal whether circadian rhythms originate in the SCN. To answer this question, researchers performed an SCN transplant experiment on wild-type and mutant hamsters (Mesocricetus auratus). For wild-type hamsters, the period between cyclic peaks in activity is 24 hours in the absence of external cues. Hamsters homozygous for the (tau) mutation have a period lasting only about 20 hours. In this exercise, you will evaluate the design of this experiment and propose additional experiments to gain further insight. The researchers surgically removed the SCN from wild-type and hamsters. Several weeks later, each of these hamsters received a transplant of an SCN from a hamster of the opposite genotype. These transplants restored rhythmic activity in 80% of the hamsters. For hamsters in which an SCN transplant restored a circadian rhythm, the researchers measured the circadian period. The results are shown in the graph. Each red line represents the change in the measured period for an individual hamster. Part A - Understanding the experimental design In a controlled experiment, researchers manipulate one variable at a time. What was the experimental variable in this study? An electronics company can spend no more than $4,000 on raw materials for circuit boards. The raw materials cost $10 per ounce for copper and $20 per ounce for silver.To summarize the situation, a worker writes the inequality:10c + 20s 4,000, where c is the number of ounces of copper material and s is the number of ounces of silver material.Which graph's shaded region shows the possible combinations of raw materials the company can buy? Based on the theory of evolution, if a population possesses a large amount of genetic variety, what level of variety can be expected in the future for that same population? A. The population will maintain the same level of genetic variety. B. The population will tend to become extinct. C. The population will increase in variety over time. D. The population will become more specialized in one particular direction. Please help me out!!!!! Which of the following is an outlier in the set of data below? I think its 12 but Im not so sure. "for a credit card billing period, describe how the average daily balance is determined. why is this computation somewhat tedious when done by hand?" Who said we must keep the world safe for democracy ?