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3 years ago

HELP NOW THIS IS 10 POINTS! The length of a rectangle is twice its width. If the width is 10, what is the area?

Mathematics

2 answers:

Ganezh [65]3 years ago

5 0

The answer is 20......

Jobisdone [24]3 years ago

5 0

Answer:

200 is the area, considering to find the area of a rectangle, you must multiply the length times the width.

Step-by-step explanation:

width 10

length 20 (two times width, 20)

10 x 20 = 200

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H E L P PLZZZ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Kitty [74]

Answer:

138

Step-by-step explanation:

just plug in the numbers:

4*6^2 - 36/6

use pemdas

4*36 - 6 = 144-6 = 138

7 0

3 years ago

Read 2 more answers

A circle has a diameter with endpoints at (6, 5) and (8, 5). Write the equation for the circle.

mario62 [17]

Answer:

$(x-7)^2+(y-5)^2=1$

Step-by-step explanation:

The two things that are required to formulate the equation of the circle is the center coordinate and the radius of the circle!

Center of the circle:

The center of the circle always lies at the midpoint of the endpoints of its diameter: Let's call the endpoints A(6,5) and B(8,5).

Using the midpoint formula we'll get:

$(x_m, y_m) = \left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

$(x_m, y_m) = \left(\dfrac{6+8}{2},\dfrac{5+5}{2}\right)$

$(x_m, y_m) = (7,5)$

This is the center coordinate of our circle.

Radius:

The radius of the circle is the distance from the center of the circle to any of the endpoints of the diameter (A or B)

We can use the distance formula:

$r = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$

$r = \sqrt{(x_1-x_m)^2+(y_1-y_m)^2}$

$r = \sqrt{(6-7)^2+(5-5)^2}$

$r = \sqrt{1^2}$

$r = 1$

Equation of the circle:

The equation is written as:

$(x-a)^2+(y-b)^2=r^2$

here, (a,b) are the center points of the circle

in our case this is $(a,b)=(x_m,y_m)=(7,5)$

and r = 1

$(x-7)^2+(y-5)^2=1^2$

$(x-7)^2+(y-5)^2=1$

This is the equation of the circle!

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3 years ago

Find the area of the sector in terms of pi. 170 6 Area = [?] T

Harlamova29_29 [7]

Answer:

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8 0

2 years ago

1. Mariana took 50 minutes to complete her math assignment. She took 2 minutes to solve each problem and 10 minutes to check her

Anarel [89]

Answer:

Step-by-step explanation:

It's the only thing not listed aka the number of math problems.

6 0

3 years ago

4. Which of the following indicates the multiplication property of equality when solving Vz= 5?

tiny-mole [99]

Answer:

D. 21.

Step-by-step explanation:

The general form of the equation of a circle is:

(x - a)^2 + (y - b)^2 = r^2 where r is the radius.

Comparing:

(x + 5)^2 + (y + 7)^2 = 21^2

So r^2 = 21^2

making r = √21^2

= 21.

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3 0

3 years ago