HELP Please THANKS (:

HELP Please THANKS (:

Answers

Answer 1
x+y=10
-x+y=-6
2y=4
y=2
x+4=10
x=8
Final answer: D
Answer 2
subsitution
y=x-6
subsitute x-6 for y in the other equation

x+y=10
subsitute x-6 for y
x+x-6=10
combine like terms
2x-6=10
add 6 both sides
2x=16
divide by 2
x=8

sub back

y=x-6
y=8-6
y=2

x=8
y=2
(x,y)
(8,2)

D is answer

Related Questions

Which of the following is equivalent to 5√13^3?

A) 13^2

B) 13^15

C) 13^5/3

D) 13^3/5

Answers

LOL...it took me a few seconds to realize what you were attempting to express...which is the fifth root of 13 cubed...

(13^3)^(1/5)  rule:  (a^b)^c=a^(b*c)

13^(3*1/5)

13^(3/5)

find the arc length of a central angle of 90° in a circle whose radius is 4 inches

Answers

this is 1/4 * circumference
Circumference = 2 * pi * 4 = 8pi

arc length = 1/4  * 8pi = 2pi  or 6.28 ins to nearest hundredth.

Answer:

2 pie in

source: Trust me bro

If you multiply me by 3 and increase that value by 3 I am 20. What's my number?

Answers

Use x for the unknown value.
Multiply by three: 3x.
Increase that value by 3: 3x +  3

Write an equation: 3x + 3 = 20.
Use the order of operations to solve.
3x + 3 = 20
3x = 17
x = 17/3

The unknown value would be 17/3.
The number is 5.666667.  You can redo the steps using these inverse operations: 20-3=17, then 17/3 to get 5.666667.

If y=m^4=n^3 and y is greater than 1, then mn=

Answers

Final answer:

If we equate the two given equations y = m^4 and y = n^3, we can express mn as m^(7/3) or as n^(7/4). This is done by taking the cube root and square root on both sides of the equated equation to isolate m and n.

Explanation:

If we have two equations, y = m^4 and y = n^3, where y > 1, we can equate these two equations since they are both equal to same value 'y'. So the equation will be m^4 = n^3. To find the value of mn, we want to express it in terms of 'y'. So we take cube root on both sides, it will be m = (n^3)^(1/4) = n^(3/4). And square root on both sides will give n = (m^4)^(1/3) = m^(4/3). Now mn = m * m^(4/3) = m^(1 + 4/3) = m^(7/3). Similarly, mn = n * n^(3/4) = n^(1 + 3/4) = n^(7/4). Hence, mn can be expressed either as m^(7/3) or n^(7/4).

Learn more about Algebraic Equations here:

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Solve for F. Let m=5, a=3 F=ma

Answers

The answer will be: F= 5*3 = 15

How do units help you to better understand a problem? How do units sometimes get in the way of solving a problem?

Answers

Unit of measurement is a standard for measurement of a quantity. Every quantity has its own units. The system is called  International System of Units. But, units also help us to better understand a problem. With units we can represent the meaning of the problem and the effect that if a certain event occurs. So, we units we can in a certain way measure the problem. On the other hand, units can sometimes get in the way of solving a problem because it can make confusion and can not measure human impact and influence, because are irrational and unpredictable. 

suppose you buy a CD for $500 that's earns 3% APR and is compounded quarterly. The CD matures in 3 years. Assume that if funds are with drawn before the CD matures, the early withdrawal fee is 3 months interest. what is the early withdrawal fee on this account?

Answers

Compounded quarterly means that the interest accrued every 3 months
Or 4 times a year
So the early withdrawal fee on this accoun is
500×0.03×(1÷4)=3.75

Answer:

The answer is $3.75

Step-by-step explanation:

P = $500

r = 3%   = 0.03

n = 4

t =[tex]3/12=1/4[/tex]

Now compound interest formula is :

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]

Putting the values in formula we get,

[tex]A=500(1+\frac{0.03}{4})^{4*1/4}[/tex]

[tex]A=500(1.0075})^{1}[/tex]

= $503.75

Now, withdrawal fee = amount paid - principle

=> [tex]503.75-500=3.75[/tex] dollars.

So, the answer is $3.75.

The price of a new pair of shoes is $52.00. If you order them directly from the company on the internet, you can save money and the price is only $42.64. What is the percent change?

Answers

Answer:

It will be 18% decrease, Because they said they lowered the price.

Step-by-step explanation:

The percentage decrease in buying shoes on the internet with respect to shop is 18%.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction of 100.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Price in shop = $52.00

Prince in online = $42.64

The percentage decrease with respect to price in the shop ⇒

(Price in shop - Prince in online)/(Price in the shop) × 100

⇒ (52 - 42.64)/52 × 100

⇒ (9.36/52)  × 100

⇒  18%

Hence "The percentage decrease in buying shoes on the internet with respect to shop is 18%".

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How long does it take to drive 25 miles at 60 mph?

Answers

60 mph = 1 mile per minute ( 60 minutes per hour)

 so it would take 25 minutes to drive 25 miles

Answer:

25 min

Step-by-step explanation:

25/60=5/12=25 min

Twelve employees were sick. If the company has 360 employees, what percent of the employees were sick on Monday? Round to the nearest tenth.

Answers

Total number of employees = 360

Number that were sick = 12

Therefore,

Percentage of employees that were sick = [tex] \frac{12}{360} * 100 = \frac{1}{3} * 10 [/tex] = 3.3 %

A 3 kg toy car rests st the top of a 0.45 meter ramp. What is its gravitational potential energy?

Answers

gravitational potential energy : P
Gravity : g
Mass : m
height : h

P = mgh  = 3 x 9.8 x 0.45 = 13.23 Joule

Potential energy is work , from the known formula

W = Fd ( work = force x distance ) 

W = P ( in case of potential energy height change)

F is the force acting on the body in case of ideal ramp , the only force acting is the weight of the body

F = mg ( not just <m> as the force is mg (Newton) gravity effect)

d is the displacement in direction of force, as we have considered the force to be the weight not it's component in direction of the ramp , the change in displacement is the change in height so

d = h 

W = Fd = (F = mg) x (d = h) = mgh 

W = mgh = P


The gravitational potential energy of a 3 kg toy car resting at the top of a 0.45-meter ramp is calculated using the formula PE = mgh, giving us a result of 13.2385 Joules.

The calculation of gravitational potential energy for a 3 kg toy car at the top of a 0.45-meter ramp. Gravitational potential energy (PE) is calculated using the formula PE = mgh, where m stands for mass, g is the acceleration due to gravity (usually 9.81 m/s² on Earth's surface), and h is the height above the reference point. In this case, PE = 3 kg × 9.81 m/s² × 0.45 m, which gives us a gravitational potential energy of 13.2385 Joules. As the car is at rest on the top of the ramp and has not yet moved, its potential energy is at its maximum at that point.

Tom has deposited $500 in an account which earns 2% interest each year. Which expression correctly shows the total value of his account after 3 years?

A) 500 + 0.02 + 0.02 + 0.02
B) 500 + 0.02[500 + 0.02(500 + 0.02*500)]
C) 500 + 0.02*0.02*0.02(500)
D) 500 + 3(0.02)500

Answers

It's D
500+3×0.02×500=530

Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?

Answers

x^2 + 12x + 36 = (x +6)^2

answer
36
x^2+12x=0
(ax^2+bx)=0
(b/2)^2=(12/2)^2=(6)^2=36
x^2+12x+36=(x+6)^2

To win a state "A" lottery, one must correctly select 5 numbers from a collection of 50 numbers (1 through 50). The order in which the selection is made does not matter. The neighboring state "B" has a lottery where one must correctly select 6 numbers from a collection of 60. Which lottery would you rather play? Support your choice with mathematical calculations.

Answers

The number of possibilities for the first one is 50 choose 5, and the number of possibilities for the second one is 60 choose 6. Since 50 choose 5 is 2118760 and 60 choose 6 is 50063860. There are less possible outcomes for state "A" and therefore you have a higher chance of winning.

WILL GIVE BRAINLIEST PLEASE HELP!!!

Which of the following equals 1/16 when evaluating f (–2)?

A.
f(x)=2^(x-2)
B.
f(x)=-2^(x-6)
C.
f(x)=-2^(n-2)
D.
f(x)=2^(n-8)

Answers


f(x)=2^(x-2) = 2^(-4) = 1/2^4  = 1/16

answer
A.
f(x)=2^(x-2)

Given cos A = .29 find the angle A in radians. Round your answer to the nearest hundredth.Answer 1.19 radians 1.28 radians 1.34 radians 1.46 radians

Answers

Use the inverse cosine button on your calculator.  Make sure it's in radians. The answer is 1.28

Answer:  The correct option is (B) 1.28 radians.

Step-by-step explanation:  We are given that for an angle A :

[tex]\cos A=0.29.[/tex]

We are to find the measure of angle A in radians.

We know that the relation between degree and radians is given by

[tex]80^\circ=\pi~\textup{radians}\\\\\\\Rightarrow 180^\circ=\dfrac{22}{7}~\textup{radians}.[/tex]

Now, we have

[tex]\cos A=0.29\\\\\Rightarrow A=\cos^{-1}(0.29)\\\\\\\Rightarrow A=73.14^\circ.[/tex]

Again,

[tex]180^\circ=\dfrac{22}{7}\\\\\Rightarrow 1^\circ=\dfrac{22}{7\times180}\\\\\Rightarrow 73.14^\circ=\dfrac{22}{1260}\times73.14=1.277=1.28~\textup{radians}.[/tex]

Thus, the measure of angle A in radians is 1.28 radians.

Option (B) is CORRECT.

Find the three arithmetic means between 7 and 21

Answers

Since we are finding three arithmetic means between 7 and 21, that means there are 4 intervals between 7 and 21. The difference between 21 and 7 is 14, which we divide by 4 to get the value of each interval. Since each interval is 14/4 or 3.5, we keep adding that value to 7 to get our three arithmetic means. They are 10.5, 14, and 17.5

Solve for number 9 please:)

Answers

i think the answer is 6 
You traveled for 3 hours, it's just solving for t

how can the properties of exponents help solve exponential equations?

Answers

The properties of exponents would help solve exponential equations by creating an expression that can be simplified easily. It elps in simplfying a certain equation. It tells us how are terms that contain exponents can be added, subtracted, divided and multiplied. For addition, terms having the same can only be added. This would be also true for subtraction. For example, we have x^2 + y^3, these terms could not be added since they have different base. For multiplication, we can readily multiply these terms and add the exponents of the terms with the same base, x^2(y^2)(x) = x^3y^2. For division, they can also be divided readily but, terms with the same base, the exponents are to be subtracted, x^3 / x^2 = x.
Final answer:

The properties of exponents and logarithms allow for simplifying and solving exponential equations by manipulating exponents, such as multiplying and dividing quantities, raising a power to another power, and using the inverse relationship between exponents and logarithms.

Explanation:

The properties of exponents are essential for solving exponential equations because they allow for the manipulation of the equations into forms that are easier to solve. The exponential and natural logarithm are inverse functions, meaning ln (e^x) = x and e^(ln x) = x. By using this relationship, any base number b can be expressed as e^(ln b), making complex calculations more manageable.

When multiplying exponential quantities, we can apply the rule where the exponents are added together, such as in (a^m) × (a^n) = a^(m + n). If we raise an exponent to another power, we multiply the exponents, which is depicted in the example of (5^3)^4 = 5^(3×4) = 5^12. Similarly, dividing exponential quantities involves subtracting exponents, and an exponential raised to a negative exponent signifies an inversion.

The logarithmic properties also come into play when working with exponents. The logarithm of a product is the sum of the logarithms: log(xy) = log(x) + log(y). This is useful when solving exponential equations since logarithms can help linearize them, making it easier to isolate the variable and find the solution.

State how many imaginary and real zeros the function has. f(x) = x^5+7x^4+2x^3+14x^2+x+7

Answers

Since the degree of the equation is 5, then the number of zeros is also equal to 5. We can find for the 1st value of the root by trial and error. To do this, we find for the value of x which makes the equation equal to zero, that is:

x^5 + 7x^4 + 2x^3 + 14x^2 + x + 7 = 0          (find x)

By trial and error I made (which I will not show anymore), the possible root is -7. This is equivalent to x + 7.

To find more roots, we divide x^5 + 7x^4 + 2x^3 + 14x^2 + x + 7 by x + 7. The answer of the division results in x^4 + 2x^2 + 1 which is a perfect square trinomial in the form of:

(x^2 + 1)^2

Therefore the other 4 roots are:

x^2 + 1 = 0      ---> i, -i           

and

x^2 + 1 = 0      ---> i, -i

Therefore the answer is:

1 real and 4 imaginary zeros

What is 10(x+7) if x=6 ?

Answers

10 (x + 7) - 17 ; x = 6
Substitute 6 for x, rewrite the equation:
10 (6 + 7) - 17
PEMDAS
Parentheses -> Exponents -> Multiplication/Division -> Addition/Subtraction
10 (13) - 17
130 - 17
113
[tex]\displaystyle \text{The problem is:\ 10(x + 7) - 17=? if x=6} \\ \\ \text{So, firstly replace x with 6 :)} \\ \\ \text{New equation is: 10(6+7)-17=?} \\ \\ \text{Bon, now, we calculate the parenthesis} \\ \\ 10 \cdot13-17=? \\ \\ \text{Order of operation, firstly multiply.} \\ \\ 130-17=? \\ \\ \text{Now, all is clear } \\ \\ 130-17= \boxed{ \boxed{\bold{113}}}[/tex]

The graph of a function is shown: scatterplot of the following points: negative 3 and 2, negative 2 and negative 1, 2 and negative 1, and 3 and 3 Which of the following correctly identifies the set of outputs?

Answers

Let's assign these coordinate points as P1(-3,2), P2(-2,-1), P3(2,-1) and P4(3,3). When you plot these points (shown in the picture), they are widely scattered. Therefore, they must not be a trend. Since you forgot to include the options, I would just make a smart guess that these coordinates form a shape which is quadrilateral. I just have to make use of what I have. From the given, I could possibly determine the area of the quadrilateral. 

First, you need to plot the points in a cartesian plane as what is shown at the top of the attached picture. Then, you make a matrix wherein the x coordinates are placed in the first row, and the y coordinates in the second row (shown as the black box in the picture). Make sure that you arrange the points in order (whether clockwise or counterclockwise). 

Once you create the matrix, you find its determinant. This is done by multiplying the numbers diagonally. The equation will be: arrow down - arrow up. The solution is as follows:

Determinant = [(-3×-1) + (-2×-1) + (2×3)] - [(2×-2) + (-1×2) + (-1×3)] = 20

Then, we use the equation for area of any polygon: A = 1/2*determinant
A = 1/2*20 = 10 square units

Thus, the output of the point plotted together creates a quadrilateral with an area of 10 square units.

Answer:

{–2, 1, 2, 5}

Step-by-step explanation:

i got it right on the test lol

A man travels from town x to town y at an average rate of 60 mph and returns at an average rate of 50 mph. He takes a 1/2 hour longer than he would take if he mage the round trip at an average of 55 mph. What is the distance from town x to town y

Answers

D/60 + D/50 = 2D/55 - 1/2

 find common denominator ( 3300)

3300/60 = 55

3300/50 = 66

3300/55=60

so then you get 55D +66D= 60(2D)-1650

121D=120D-1650

D=1650 miles

check

1650/60 =27.5, 1650/50 = 33,  27.5 + 33 = 60.5 hours total

1650/55 = 30, 30 x 2 = 60

60.5-60 = 0.5 longer

 so distance = 1650 miles

Which statement is correct when a scatterplot is constructed? A.The independent variable is the input variable and should be represented by the x-axis. B.The independent variable is the input variable and should be represented by the y-axis. C.The dependent variable is the input variable and should be represented by the x-axis. D.The dependent variable is the input variable and should be represented by the y-axis.

Answers

Answer:-  A.The independent variable is the input variable and should be represented by the x-axis.


Explanation:-

A. Correct.

B. Not correct.

Reason:- The independent variable is the input variable and should be represented by the x-axis.

C. Not correct.

Reason:- The dependent variable is the output variable and should be represented by y-axis.

D. Not correct.

Reason:-The dependent variable is the output variable and should be represented by y-axis.


Answer:

A.The independent variable is the input variable and should be represented by the x-axis.

Step-by-step explanation:

It was right on the test.

STVU is an isosceles trapezoid. If SV = 3x - 11 and TU = x + 13, find the value of x
PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The given trapezoid will have the sides ST, TV, VU, and US. Each of these can be assigned as base or legs. By this, it can be deduced that the given sides, SV and TU are the diagonals. Because the trapezoid is isosceles, the values of SV and TU should also be equal.

                                   SV = TU
                                 3x - 11 = x + 13

Transpose the terms with x and the constants in each sides of the equation.
 
                               3x - x = 13 + 11
                                   2x = 24
                                     x = 12

Thus, the value of x from the equation is 12. 

What's four minus (-2)

Answers

4 - (-2)  = +6 

Because  [tex]Four [/tex]became a negative
 
remember (neg = negative ; pos = positive)

[tex]neg. + neg. = pos. [/tex]
[tex]pos. + pos. = pos.[/tex]
[tex]neg. + pos = neg.[/tex]
[tex]pos. + neg. =neg.[/tex]

Negatives goes on the [tex]LEFT [/tex]side of the number-line 
Positives goes on the [tex]RIGHT [/tex]side of the number-line

Given the table below, determine if the data represents a linear or an exponential function and find a possible formula for the function.

(x): 0, 1, 2, 3, 4
f(x): 14, 12.6, 11.34, 10.206, 9.185

A) Exponential; y=14(0.10)^x
B) Linear; y= -1.2024x + 13.871
C) Exponential; y= 14(0.90)^x
D) Linear; 18.871x - 1.2024

Please explain you answer. Please someone help me, I'm in need of some help.

Answers

The answer is C) y=14(0.9)ˣ and it's an exponential function

PROOF 

Give to x the respective values of x & calculate y, using y = 14(0.9)ˣ

x         |       y
---------|---------
0         | 14(0.9)⁰ = 14
1         | 14(0.9)¹ = 12.6
2         | 14(0.9)² = 11.34
3         | 14(0.9)³ = 10.206
4         | 14(09)⁴ =  9.1845

Answer:

simplified answer: its letter c

Step-by-step explanation:

In how many different ways can a group of 9 people be divided into 3 groups, with each group containing 3 people?

Answers

The first three can be selected in 9c3 ways which equals 84.
The second three can be selected in 6c3 ways which equals 20.
Then the third set of three can be selected in 3c3  which equals 1 way.
Now we want three things to happen, so multiply 84 and 20 and you get 1680.
The order of this does not matter so divide 1680 by 3 and you have 280!!



can someone help me with this question

Answers

Multiply binomials by foiling.

First: 2x*3x=6x^2
Outwr: 2x*4=8x
Inner: 5*3x=15x
Last: 5*4=20

Put it together and simplify.
6x^2+8x+15x+20
6x^2+23x+20

Final answer: D
The answer you want is D!

How do bearing in Gr11 trig work? I was doing this question and I can't seem to get the right answer: The observation deck on a tower is 166m above the tower, a tourist notices two boats on water from above.
- the bearing of boat A is 180, at an angle of depression of 40
- the bearing of boat B is 250, at an angle of depression of 34
Calculate the distance between the two boats.
Please help, thank you!

Answers

You need to find the triangle between them on the water.
Boat A distance would be 166Tan(50)
Boat B distance would be 166Tan(56)
The angle between them would be 250-180 = 70 degrees
Then use the Law of Cosines to solve for the distance between them:
d^2 = A^2 + B^2 - 2AB(Cosine 70)
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