3 years ago

What is the area of this shape?

Mathematics

1 answer:

zysi [14]3 years ago

3 0

Area = L x H

area = 20 x 15 = 300 square feet

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Find an equation of the circle that has center (-4,3) and passes through (6,-4).

kumpel [21]

Answer:

$(x+4)^2+(y-3)^2=149$

Step-by-step explanation:

The equation of a circle is $(x-h)^2+(y-k)^2=r^2$ where $(h,k)$ is the center of the circle and $r$ is the radius of the circle.

Given that $(h,k)\rightarrow(-4,3)$ and it passes $(6,-4)$ , their distance between each other must the radius of the circle, so we can use the distance formula to find the radius:

$d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}\\\\d=\sqrt{(-4-3)^2+(6-(-4))^2}\\\\d=\sqrt{(-7)^2+10^2}\\\\d=\sqrt{49+100}\\\\d=\sqrt{149}$

Therefore, if the length of the radius is $r=\sqrt{149}$ units, then $r^2=149$ , making the final equation of the circle $(x+4)^2+(y-3)^2=149$

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3 years ago

What is an equivalent expression for 7times plus 56.

krok68 [10]

<em>t would be 8 if you are multiplying .</em>

7 0

4 years ago

Read 2 more answers

A^4 x a^-7<br><br> Simplify. express using exponents

lara [203]

1/a^3

The guy above me is probably also right

3 0

3 years ago

I really need help this timed

leonid [27]

Honestly I couldn’t tell yiu

6 0

3 years ago

Use gcf and the distributive property to write equivalent expressions in factored form for 4d+12e

KiRa [710]

So distributive=ab+ac=a(b+c)
so

find the gcf of 4 and 12
4=2 time 2
12=2 times 2 times \3

the gcf is 2 times 2 =4
4(d+3e)

7 0

4 years ago