Find the fifth roots of 32(cos 280° + i sin 280°)

Answers

Answer 1

Answer:

The fifth root is 2[cos(56°) + i sin(56°)]

Step-by-step explanation:

* To solve this problem we must revise De Moiver's rule

- In the complex number with polar form

∵ z = r(cosФ + i sinФ)

∴ z^n = r^n(cos(nФ) + i sin(nФ))

* In the problem

- The fifth root means z^(1/5)

- We can put 32 as a form a^n

∵ 32 = 2 × 2 × 2 × 2 × 2 = 2^5

∴ z = 2^5[cos(280°) + i sin(280°)]

* Lets find z^(1/5)

[tex]*z^{\frac{1}{5}}=[2^{5}]^{\frac{1}{5} } (cos(\frac{1}{5})(280)+isin(\frac{1}{5})(280)[/tex]

[tex]*(2^{5})^{\frac{1}{5}}=2^{5.\frac{1}{5}}=2[/tex]

∴ z^(1/5) = 2[cos(56) + i sin(56)]

* The fifth root of 32[cos(280°) + i sin(280°)] is 2[cos(56°) + i sin(56°)]

 


Related Questions

Write the ratio 11 hours to 3 days in lowest terms.

Answers

Answer:

Step-by-step explanation:

11 hours: 3 days

11 hours: 72 hours

In this figure m<3=130
What is m<6 ?

Answers

Answer: [tex]m\angle6=50\°[/tex]

Step-by-step explanation:

You can observe in the figure two parallel lines that are intersected by a transversal and several angles are formed.

The angles m∠3 and m∠6 are located inside the parallel lines and on one side of the transversal, this angles are known as "Consecutive interior angles" and they are supplementary (which means that they add up 180°).

Therefore, you know that:

[tex]m\angle3+m\angle6=180\°[/tex]

So you can substitute m∠3=130° and solve for m∠6. Then you get:

[tex]130\°+m\angle6=180\°\\m\angle6=180\°-130\°\\m\angle6=50\°[/tex]

Answer:

The correct answer is m<6 = 50°

Step-by-step explanation:

From the figure we can see that,

AB ║CD

To find the value of m<6

From figure we get, m<3  = 130°

m<6 = m<2 (corresponding angles)

m<3 + m<2 = 180°   (Linear pair)

m<2 = 180 - 130 = 50°

m<6 = m<2 = 50°

Therefore the correct answer is m<6 = 50°

Graph the following inequality. Then click to show the correct graph. x < -1

Answers

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

x < -1

The solution is the interval ----> (-∞,-1)

All real numbers less than -1

On a number line the solution is the shaded area at the left of x=-1 (open circle)

using a graphing tool

see the attached figure

Answer:

Step-by-step explanation:

Trying to help everyone!

simplify the expression (64x^12)^1/6​

Answers

Answer:

2x^2

Hope This Helps!   Have A Nice Day!!

Please help me I’m terrible at math

Answers

Answer:

168.6 in

Step-by-step explanation:

Use the formula for circumfrence

[tex]2\pi \: r[/tex]

Plug in 26.85 as the radius and solve. Remember to use 3.14 instead of the pi key.

I need help for this math question ​

Answers

Answer:

63%

Step-by-step explanation:

The percentage of perfect attendance students can be represented by [tex]\frac{57}{190}[/tex]

Now we can simplify this and convert it to a percent.

[tex]\frac{57}{190} =0.3[/tex]

0.3 = 30%

Answer:

30%

Step-by-step explanation:

Jill collects stamps. Her stamp book has space for 64 stamps. She needs 18 more stamps to fill the book. How many stamps does Jill have now?

Answers

Answer:

46

Step-by-step explanation:

64 spaces. 18 empty

64 - 18 = 46

Final answer:

Jill currently has 46 stamps in her stamp book. For Jenny, the calculations show that if Lisa ended up with 6 chocolates, which is half of the remainder, then Jenny must have started with 14 chocolates initially.

Explanation:

To find out how many stamps Jill has now, we subtract the number of stamps she needs from the total capacity of the stamp book. If the stamp book has space for 64 stamps and Jill needs 18 more stamps to fill it, then:

Total stamp space in the book = 64

Stamps needed to fill the book = 18

Stamps Jill has now = Total stamp space - Stamps needed to fill the book

Stamps Jill has now = 64 - 18

Stamps Jill has now = 46 stamps

Therefore, Jill currently has 46 stamps in her stamp book.

Now, for Jenny's chocolates:

If Lisa has 6 chocolates, which is half of the remainder after Jenny ate two, we can calculate the original number of chocolates Jenny had. Since Lisa has 6, the remainder before Lisa received them was 12 (because 6 is half of 12). Therefore, if Jenny ate 2 chocolates before giving half to Lisa, she initially had:

Chocolates after eating 2 = 12 (remainder)

Chocolates before eating = 12 + 2

Chocolates Jenny had initially = 14

So, Jenny had 14 chocolates in the beginning, which is answer C. 14.

Please please please help it’s due at 5 today and I don’t understand at all, I’ll give brainliest and 15 pts!!

Answers

Answer:

Surface Area of cylinder = 251.2 ft ^2

Step-by-step explanation:

The formula used to find the surface area of cylinder is:

Surface Area of Cylinder = 2πr²+ 2πrh

We are given: π = 3.14

r = 4 ft

h = 6 ft

Putting values:

Surface Area of Cylinder = 2πr²+ 2πrh

Surface Area of cylinder = 2* 3.14 * (4)^2 + 2*3.14*4*6

Surface Area of cylinder = 100.48 + 150.72

Surface Area of cylinder = 251.2 ft ^2

So, Surface Area of cylinder = 251.2 ft ^2

Plz help me with this

Answers

Answer:  [tex]\bold{A)\quad y=3\ cos\bigg(x-\dfrac{\pi}{2}\bigg)+3}[/tex]

Step-by-step explanation:

[tex]\text{The standard form of a cosine equation is: y=A cos(Bx - C) + D}\\\\\bullet\text{A = amplitude}\\\\\bullet\text{Period = }\dfrac{2\pi}{B}\\\\\bullet\text{Phase Shift = }\dfrac{C}{B}\\\\\bullet\text{D = vertical shift (up if positive, down if negative)}[/tex]

In the graph,

A (amplitude) = 3 D (vertical shift) = +3P (period) = [tex]\dfrac{\pi}{2}[/tex] to the right

[tex]\implies \large\boxed{y=3\ cos\bigg(x-\dfrac{\pi}{2}\bigg)+3}[/tex]

see graph below as verification

For which of the following is x=-5 a soulution? select all that apply​

Answers

Answer:

The answer are B and C

Step-by-step explanation:

-5² + 50 = 25

 |2 x 5| = 10

answer

everything but A so,

B C D E

6. Courtney bought a shirt for $24 with a
coupon for 25% off. What was the
original price of the shirt before the
discount?​

Answers

let the original price be x.

then,

x- 25% of x= 24

x- 25x/100 = 24

x-   x/4=24

3x/4=24

3x= 96

x= 32

in short...the original price= 32 dollars

Female giraffes reach a height of 4.3 meters, and males reach a height of 5.5 meters. Kendra created a bar diagram and wrote an equation to find the difference in the heights. bar diagram d - 5.5 = 4.3 Write about the errors made by Kendra

Answers

Answer:

The purpose of the the bar diagram is to show the difference between the heights of female and male giraffes, in other words, the bar diagram needs to be able to show how much one value is more or less than the other value.

The height of the males can reach 5.5 meters, and the females' height will only reach 4.3 meters, therefore, we can see that the height of the males are larger than the height of the females, so the equation to find the difference in the heights should be: 5.5 - d = 4.3 (or any other way around).

From that, we know that the height of the males is d meters more than the height of females or the height of the females is d meters less than the height of the males.

*hope this help you

Answer:

The numbers are in the wrong places in the diagram. 5.5m should be in the top bar diagram and 4.3 in the bottom. One equation could be 4.3 + d = 5.5.

Step-by-step explanation:

Sample response from Edgunity! Hope this helps, good luck on your assignment :)

PLEASE HELP

Why would someone want to factor a polynomial? Provide real-world examples of different questions we can answer or facts we can determine from factoring a polynomial.

Answers

-To simplify fractions.

Ex. (2x+10)/2 we factor 2 to simplify so 2(x+5)/2=x+5

Answer:

Step-by-step explanation:

Factoring a polynomial is one important way to find the roots (or x-intercepts) of the polynomial.  It's not always the easiest method, particularly when the roots are mixed numbers.

If you take calculus later, you'll see that finding the derivative of a function, setting this derivative = to 0 and solving for the roots is one way in which we can identify the x-value(s) at which we have either a maximum or a minimum.

Nike shoes were originally $40 and is now marked up by 5% what is the price after the markup
42.50
42
43
44

Answers

Answer : 42

If the shoes were marked up by 5% then:

5 ÷ 100 × 40 = $2

Add the $2 to the $40 and you'll get:

$40 + 2 = $42

A rectangular solid measures 4.9 m by 8.3 cm by 6.8 dm. Express its volume in cubic meters, liters, cubic inches, and cubic feet.

Answers

Answer:

Part 1) The volume is 0.276556 m³

Part 2) The volume is 276.556 l

Part 3) The volume is 16,886.94 in³

Part 4) The volume is 9.68 ft³

Step-by-step explanation:

A rectangular solid measures 4.9 m by 8.3 cm by 6.8 dm

Part 1) Express its volume in cubic meters

Convert the measures to meters

Remember that

1 m=100 cm

1 m=10 dm

4.9 m

8.3 cm=8.3/100=0.083 m

6.8 dm=6.8/10=0.68 m

Find the volume

V=4.9*0.083*0.68=0.276556 m³

Part 2) Express its volume in liters

Convert the measures to liters

Remember that

1 m³=1,000 l

we have

V=0.276556 m³

so

Convert to liters

0.276556 m³=0.276556*1,000=276.556 l

Part 3) Express its volume in cubic inches

Convert the measures to inches

we have

4.9 m, 0.083 m, 0.68 m

Remember that

1 m= 39.3701 in

so

4.9 m=4.9*39.3701=192.91 in

0.083 m=0.083*39.3701=3.27 in

0.68 m=0.68*39.3701=26.77 in

Find the volume

V=192.91*3.27*26.77=16,886.94 in³

Part 4) Express its volume in cubic feet

Convert the measures to feet

we have

4.9 m, 0.083 m, 0.68 m

Remember that

1 m=3.28084 ft

so

4.9 m=4.9*3.28084=16.08 ft

0.083 m=0.083*3.28084=0.27 ft

0.68 m=0.68*3.28084=2.23 ft

Find the volume

V=16.08*0.27*2.23=9.68 ft³

Find the point, M, that divides segment AB into a ratio of 3.1 if A is at (-4,-2) and B is at (4. -10).

Answers

Answer:

The coordinates of M are (2,-8)

Step-by-step explanation:

The coordinates of the point that divides the line segment joining

[tex]A(x_1,y_1)[/tex] to [tex]B(x_2,y_2)[/tex] in the ratio m:n is given by:

[tex](\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n})[/tex]

If A is at (-4,-2) and B is at (4. -10) and the ratio is 3:1.

Then

[tex](\frac{3(4)+1(-4)}{3+1},\frac{3(-10)+1(-2)}{3+1})[/tex]

[tex](\frac{8}{4},\frac{-32}{4})[/tex]

The coordinates of M are (2,-8)

To find point M that divides segment AB in a 3:1 ratio, we apply the section formula with m=3 and n=1. The coordinates of point M, given A (-4,-2) and B (4, -10), are found to be (2, -8).

To find the point M that divides the segment AB into a ratio of 3:1, where point A is at (-4,-2) and point B is at (4, -10), we can use the section formula.

This formula allows us to calculate the coordinates of point M that divides AB in the given ratio.

The section formula in two dimensions for a line divided internally in the ratio m:n is given by:

M(x,y) = ((mx2 + nx1)/(m + n), (my2 + ny1)/(m + n))

In this problem, m=3 and n=1, point A (-4,-2), and point B (4, -10). We can substitute these values into the formula:

M(x,y) = ((3*4 + 1*(-4))/(3 + 1), (3*(-10) + 1*(-2))/(3 + 1)) = (8/4, -32/4) = (2, -8)

Therefore, the coordinates of point M are (2, -8).

Answer the question in the picture.

Answers

Answer:

r=9

Step-by-step explanation:

We can use the Pythagorean to solve, since this is a right triangle

The leg lengths are r and 12

The hypotenuse is (r+6)

a^2 + b^2 = c^2

r^2 + 12^2 = (r+6)^2

Foiling out the right hand side

(r+6)(r+6_ = r^2+6r+6r+36

r^2 +144 = r^2 +12r+36

Subtracting r^2 from each side

r^2-r^2 +144 = r^2-r^2 +12r+36

144 = 12r+36

Subtract 36 from each side

144-36 = 12r+36-36

108 = 12r

Divide each side by 12

108/12 = 12r/12

9=r

AC=AB+BC

AC=6+r

AD=12

DC=r

by Pythagorus theorem

AC*2=AD*2+DC*2

(6+r)*2=12*2+r*2

36+12r+r*2=144+r*2

12r+r*2-r*2=144-36

12r=108

r=108/12

r=9

A square grass field is being paved to convert it to a shopping mall. Each side of the field is 75 meters long. The plan is to reduce the side lengths of the grass field by 5

meters each week. Which function can be used to calculate the area of the grass field, A after T weeks?


(A)=75−(5t)^2



(A)=(75−5t)^2



(A)=75^2 −5



(A)=75^2 -(5t)^2

Answers

Answer: second option.

Step-by-step explanation:

The formula for calculate the area of a square is:

[tex]A=s^2[/tex]

Where "s" is the lenght of any side of the square.

You know that the square grass field is 75 meters long and they plan to reduce the side lengths of the grass field by 5 meters each week and the number of weeks is "t", then, the area after "t" weeks will be:

[tex]A=[s_{original}-(s_{eliminated})(number\ of\ week)]^2[/tex]

Substituting you get that the function that can be used to calculate the area of the grass field, "A" after "t" weeks is:

[tex]A=(75-5t)^2[/tex]

This matches with the second option.

Help please!! please answer ASAP... I NEED HELP...
i feel soo dumb...

Answers

Answer: 15.71 is it when using 3.14 as the pi substitute

Step-by-step explanation:

The arc is simply the length of its portion of a circumference. Because its half of a circle, we can just find the circumference of the circle and divide it by 2.

C = 2 * 3.14 * radius/2 (because semi circle)

= 15.71

a cylinder has a height of 6m and a cicumference of 10cm. What is the volume of the cylinder?​

Answers

Answer:

47.45 cm³

Step-by-step explanation:

Radius

= 10 ÷ 2π

= 5/π

Volume

= π(5/π)²(6)

= 150/π

= 47.45 cm³

PLEASE HELP ASAP!!!! I'm stuck and any help is appreciated

A box without a top is made from a rectangular piece of cardboard, with dimensions 40 inches by 32 inches, by cutting out square corners with side length x inches.


Which expression represents the volume of the box in terms of x?


A.) (40−2x)(32−2x)x


B.) (40−2x)(32−2x)4x


C.) (40−x)(32−x)x


D.) (2x−40)(2x−32)x

Answers

Answer:

The expression is (40 − 2x)(32 − 2x)x ⇒ answe A

Step-by-step explanation:

* Lets study the information of the problem

- The rectangular piece of cardboard has dimensions 40 inches

  and 32 inches

- A square of side length x is cutting from each corner

- That means we cut x from each sides of length and width,

 x from left corner and x from right corner

∴ The new length = 40 - x - x = 40 -2x

∴ The new width = 32 - x - x = 32 - 2x

* Now when we fold the cardboard to make the box we will stick

 the sides of length x together to make the heights of the box

∴ The height of the box = x

- The volume of the box = area of its base × its height

∵ The length of the base is (40 - 2x)

∵ The width of the base is (32 - 2x)

∴ The area of the base = (40 - 2x)(32 - 2x)

∵ The height of the box is x

∴ The volume of the box = (40 - 2x)(32 - 2x)x

* The expression which represent the volume is (40 − 2x)(32 − 2x)x

- The attached picture will help you to understand

The graph shown represents a the rule y=x+1.5

Answers

Final answer:

The answer explains the graph of y=x+1.5, a direct relationship with a positive slope, and the graphical representation of the dependence of y on x.

Explanation:

Mathematics: The graph represents the rule y=x+1.5, showing a straight line with a positive slope where the y-intercept is 1.5. As x-values increase, the line gradually rises on the graph.

Direct Relationship: The line's slope remains the same, indicating a direct relationship between x and y.

Slope and Graphical Representation: By connecting points like (1,5), (2,10), (3,7), and (4,14), the dependence of y on x can be graphically illustrated.

What expression is equivalent of 3 3/4 + 1 1/2

Answers

Answer: 5 1/4=21/4

Step-by-step explanation:

3 3/4 +1 1/2

Need to find the common denominator for  1 1/2

Multiply by 2 for denominator and numerator for 1 1/2

=3 3/4+ 1 2/4

=4 6/4

= 5 2/4

= 5 1/5

Even though there is no multiple choice. I still know the answer.

For this case we must find an expression equivalent to:

[tex]3 \frac {3} {4} +1 \frac {1} {2}[/tex]

We have to:

[tex]3 \frac {3} {4} = \frac {4 * 3 + 3} {4} = \frac {15} {4}\\1 \frac {1} {2} = \frac {2 * 1 + 1} {2} = \frac {3} {2}[/tex]

Rewriting the expression:

[tex]\frac {15} {4} + \frac {3} {2} = \frac {2 * 15 + 4 * 3} {8} = \frac {30 + 12} {8} = \frac {42} { 8} = \frac {21} {4}[/tex]

If we convert to a mixed number we have:

[tex]5 \frac {1} {4}[/tex]

ANswer:

[tex]5 \frac {1} {4} = \frac {21} {4}[/tex]

Find the volume of the cylinder.
Either enter an exact answer in terms of π or use 3.14 for π.

Answers

Volume of a cylinder = area of base x altitude.

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

So, pi times radius squared times height.

3.14x[tex]r^{2}[/tex]x2

3.14x9x2

The answer is 56.52

Answer:

the answer is 18pi.

I hope this helps

So, I have 13 beads that have a mass of 29/5 grams, what is the average?
I this answer fast please.

Answers

Answer:

.446153846

Step-by-step explanation:

Well, 29/5 is 5.8. We have to divide 5.8 by 13 since tehre are 13 beads.

What is the perimeter of this red polygon?
Please Need Help Badly!!

Answers

Add all the side that is
22+27+22+98=169in

Answer:

338

Step-by-step explanation:

Tangents from an external point are equal. This can be used to find the perimeter

Perimeter = 22+22+22+22+27+27+98+98

= 338 in.

NOT 169.

Please explain your answer. THX!

Answers

Answer:

see explanation

Step-by-step explanation:

(3)

Given cosΘ = - [tex]\frac{4}{5}[/tex]

Then by Pythagoras' theorem the third side is 3 ( 3,4, 5 triangle )

Since Θ in second quadrant then sinΘ > 0

sinΘ = [tex]\frac{3}{5}[/tex]

Using the trigonometric identity

sin2Θ = 2sinΘcosΘ, then

sin2Θ = 2 × [tex]\frac{3}{5}[/tex] × - [tex]\frac{4}{5}[/tex] = - [tex]\frac{24}{25}[/tex]

(4)

Using the trigonometric identity

cos(x - y) = cosxcosy + sinxsiny

note cos15° = cos(45 - 30)°

cos(45 - 30) = cos45cos30 + sin45sin30

                    = ( [tex]\frac{\sqrt{2} }{2}[/tex] × [tex]\frac{\sqrt{3} }{2}[/tex]) + ([tex]\frac{\sqrt{2} }{2}[/tex] × [tex]\frac{1}{2}[/tex])

                    = [tex]\frac{\sqrt{2(\sqrt{3}+1) } }{4}[/tex]

         

A jeweler has 15 diamond pendants and will display 4 of them from left to right in a glass case. In how many ways can he select and display the 4 pendants?

Answers

Final answer:

This is a problem of permutations. In this case, with 15 diamond pendants and selecting 4 at a time, there are 32,760 ways to select and arrange these pendants.

Explanation:

This question is about permutations of a set of objects. A permutation is an arrangement of objects in a specific order. The number of permutations of n distinct objects taken r at a time, denoted by P(n, r), can be calculated as: n! / (n-r)! where the '!' symbol represents a factorial, the product of all positive integers less than or equal to the number.

In this case, the jeweler has 15 diamond pendants (n=15) and is selecting and arranging 4 of them (r=4). We can plug these values into the formula to find the number of ways: P(15, 4) = 15! / (15-4)! = 32,760. So, there are 32,760 ways to select and display the 4 pendants.

Learn more about Permutations here:

https://brainly.com/question/23283166

#SPJ12

-n^2-14n=0
The solution for this equation

Answers

Answer:

n = 0, n = 14

Step-by-step explanation:

-n² - 14n = 0

Remove -n: -n(n - 14) = 0

Solve: -n = 0, n - 14 = 0

Solve: n = 0, n = 14

Answer:

n = 0, n = -14

Step-by-step explanation:

We are given the following equation an we are to solve it for the variable [tex] n [/tex]:

[tex] - n ^ 2 - 1 4 n = 0 [/tex]

Taking out the minus '-' as the common to get:

[tex] - ( n ^ 2 - 1 4 n ) = 0 [/tex]

[tex]n^2+14n=0[/tex]

[tex]n(n+14)=0[/tex]

[tex] n = 0 , n + 1 4 = 0 [/tex]

[tex] n = 0, n = -14 [/tex]

Which of the following functions is graphed below.

Answers

Answer: Option A

[tex]y=\left \{ {{x^2 +2;\ \ x<1 \atop {-x+2;\ \ x\geq1}} \right.[/tex]

Step-by-step explanation:

In the graph we have a piecewise function composed of a parabola and a line.

The parabola has the vertex in the point (0, 2) and cuts the y-axis in y = 2.

The equation of this parabola is [tex]y = x ^ 2 +2[/tex]

Then we have an equation line[tex] y = -x + 2 [/tex]

Note that the interval in which the parabola is defined is from -∞ to x = 1. Note that the parabola does not include the point x = 1 because it is marked with an empty circle " о ."

(this is [tex]x< 1[/tex])

Then the equation of the line goes from x = 1 to ∞ . In this case, the line includes x = 1 because the point at the end of the line is represented by a full circle .

(this is [tex]x\geq 1[/tex])

Then the function is:

[tex]y=\left \{ {{x^2 +2;\ \ x<1 \atop {-x+2;\ \ x\geq1}} \right.[/tex]

Other Questions
A toy store's percent of markup is 40%.A model train costs the store $90. Find the markup the PPC shifts to the rightthe PPC shifts to the lefta point on the original PPCa point inside the PPCa point outside the PPCA manufacturing unit uses all itsresources efficiently.Andrew has 5 hours to complete hishomework but uses only 3 hours, sohe doesn't complete it.28A country acquires part of its neighboringcountry. [WILL GIVE BRAINLIEST ANSWER] f(x)=(x-5)(5x+2) write the smaller solution first and the smaller solutuon second A game is played with a deck of 50 cards numbered from 1 to 50. At the end of each round, players calculate their score by adding the numbers on their cards.What is the least score a player could have if he or she has 7 cards remaining at the end of a round? Use the distributive property to remove the parentheses.-5(6y - u - 2) Using your heart rate, you can increase the intensity of your workout by:A: Keeping your heart rate at a normal levelB: Working to increase your heart rateC: Trying to slow your heart rate downD: None of the above Which passage from Julius Caesar Act 4 uses a metaphor?For shame, you generals! what do you mean? / Love, and be friends, as two such men should be, / For I have seen more years, Im sure, than ye.Of your philosophy you make no use, / If you give place to accidental evils.Ever note, Lucilius, / When love begins to sicken and decay / It useth an enforced ceremony.You wrong me every way you wrong me, Brutus / I said, an elder soldier, not a better. / Did I say better? Mary and Jane are trying to set up their marmalade selling business. They started off by peeling the oranges. Mary peels 8 oranges in 10 minutes while Jane peels 3 oranges in 5 minutes. If they need to peel 500 oranges for their first batch of marmalade, how long (in hours) will it take them to finish peeling? (round off to nearest hr) How do you do this problem? A lack of flexibility is a risk factor for athletic injuries.Ture or False 13-Identify the indefinite article(s) in the following sentence.Anyone who buys an SUV should be ready to pay a lot for their gas when they fill it up.A.an, aB.their, they, itC.be, to, forD.Anyone What will most likely happen if a new producer is introduced into a food web? A) The omnivores will decrease. B) The herbivores will increase. C) The carnivores will decrease. D) The decomposers will decrease Your backpack has a mass of 8 kg. You drop it from a height of 1.3m. How much work is done by gravity as the backpack falls? A. -102 JB. -10.4 JC. 102 JD. 10.4 J Which stretching exercise is usually NOT recommended for most people other than professional athletes? A. static stretching B. dynamic stretching C. isometric stretching D. ballistic stretching Which part of an atom has most of its mass? A. electrons B. neutrons C. nucleus D. protons The one thing that kept Betsie, Corrie, and their father strong was _____.a sense of adventurefellowshipenduranceprayer what are some examples of freshwater ecosystems? I need this by 5/22/2019 SO PLEASE ANSWER IT CORRECTLY IT'S URGENT THANKS Before arriving in Messina, who helped Don Pedro defeat Don John's attempt to overthrow him? A. Claudio and Benedick B. Antonio and Dogberry C. Leonato and Antonio D. Borachio and Conrad Currently, there are members of the United Nations. calculate the slope of the given points (6,2) and (8,2)