the area of a rectangular plot 30 feet long and 20 feet wide will be doubled by creating a border around the plot. what width should the border be to accomplish this?

Answers

Answer 1

Answer:

Answer:

(2x + 20)(2x + 30) = 1200 Aplus

Step-by-step explanation:

Answer 2

Answer: the area of the plot is 600 (20x30) and it needs to be 1200 (600x2)
only the width is changed so you divide it by the length which is 30
1200 divided 30 is 40 so the answer is 40 (another way is to just multiply the width by 2 since it's the only thing changing)

hope this helps :)

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Evaluate b^2c^1 for b=-4 and c= 2.

Answers

Answer:

Step-by-step explanation:

b^2c^1

Let b=-4 and c= 2

(-4)^2 ( 2)^1

16 * 2

Answer:

The correct answer is

-32

Step-by-step explanation:

All you need to do is plug in -4 and 2 into the equation to get:

4^2 times 2^1

This equals ...

-32

Hope this helps!

- xoxo Quinnisa

Consider the relation y = 4|x − 5| + 3. Which of the following best describes the minimum or maximum of this relation?A)Minimum at (5,3)
B)Maximum at (5,3)
C)Minimum at (-5-3)
D)Maximum at (-5,3)

Answers

A) Minimum at (5,3) because the 4 (a) and the b (in front of the x is 1) are positive, the relation will be positive. When looking at the h (-5) you must always consider it as if it was the opposite sign. So here it's negative so in reality it's positive.

Which unit would you use to measure the weight of a car?

g
kg
mg
km

Answers

kg the rest are to small and km is for length.

Help asap I only have 10 minutes!Heidi grew her hair out for many years. Her hair was 1 1/3 of a meter long. She donated her hair by cutting off 5/6of a meter.
How long is Heidi's hair now?

Answers

Answer:

Heidi's hair is only half a meter long now.

1/2 of a meter

Step-by-step explanation:

1 1/3 - 5/6

= 1 2/6 - 5/6

= 3/6

= 1/2

I hope this helped! Happy new year :)

Answer:

3/6 or 1/2 meter lomg.

Step-by-step explanation:

Let R be the region in the first quadrant bounded by the graph of y=sqrt{x-2} and the line y=2.(a). Find the volume of the solid generated when R is revolved about the x-axis.
(b). Find the volume of the solid generated when R is revolved about the line y=-2.

Answers

Volume of the solid generated when R is revolved about the x-axis is 10π and the volume of the solid generated when R is revolved about the line y = -2 is 40π/3.

What is Graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

The volume of the solid generated when R is revolved about the x-axis,

$V=\int\limits^a_b\pi {y^(2) } \, dx$

where a and b are the x-coordinates of the points of intersection of the curve y = √(x-2) and the line y = 2.

Solving y = √(x-2) and y = 2 for x, we get:

x = 6 and x = 2

Limits of integration are a = 2 and b = 6. Substituting y = √(x-2) into the formula for the volume, we get:

V = $\int\limits^6_2\pi\sqrt{(x-2)^(2) } \, dx$

V= π [(6²/2 - 2(6)) - (2²/2 - 2(2))]

=10π

Volume of the solid generated when R is revolved about the x-axis is 10π.

b. The volume of the solid generated when R is revolved about the line y = -2

$V=\int\limits^a_b\pi {(y+2)^(2) } \, dx$

Substituting y = √(x-2) into the formula for the volume, we get:

$V=\int\limits^2_6\pi (√(x-2)+2)^(2) \, dx$

We can simplify this by using the identity:

V =40π/3

Therefore, the volume of the solid generated when R is revolved about the line y = -2 is 40π/3.

Hence, Volume of the solid generated when R is revolved about the x-axis is 10π and the volume of the solid generated when R is revolved about the line y = -2 is 40π/3.

To learn more on Graph click:

brainly.com/question/17267403

#SPJ6

A.) Find the volume of the solid generated when R is revolved about the x-axis.

a car wheel has a 14 inches radius. through what angle does the wheel turn when the car rolls forward 2 ft???? ...?

Answers

arc length = rad * angle2 ft = 14 inch * angle2*12 inch = 14 inch * angleangle = 24/14 inch = 12/7 radiansthis angle is in radianswe need to convert it into degress so for conversion, (12/7)*(180/pi)solve it and u get 1080/11 deg or 98.2 deg

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