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3 years ago

A circle has center (5, -4) and radius 8. Which gives the equation of the circle?

Mathematics

1 answer:

miv72 [106K]3 years ago

8 0

Answer:

Step-by-step explanation:

if not A then B but i'm pretty sure A

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The radius of a cylindrical gift box is (2x+3) inches. The height of the gift box is three times the radius. What is the surfa

Feliz [49]

The formula for surface area of a cylinder is:2 $A=2\pi rh + 2\pi r^{2}$
So, to solve this, we plug in what we know and solve
$A=2\pi (2x + 3)(3(2x + 3)) + 2\pi (2x + 3)^{2}$
$A=6\pi (4x^{2}+12x+9) + 2\pi (4x^{2}+12x+9)$
$A=24x^{2}\pi+72x\pi+54\pi + 8x^{2}\pi+24x\pi+18\pi$
$A=32x^{2}\pi+96x\pi+70\pi$
This is as far as we can go, because we do not know the value of x. If we did, we could solve for the surface area

3 0

3 years ago

In ΔBCD, the measure of ∠D=90°, CB = 25, BD = 7, and DC = 24. What is the value of the sine of ∠C to the nearest hundredth?

skad [1K]

Answer: The value of the sine of ∠C is 0.28.

Step-by-step explanation:

Let's draw a triangle again (see the picture below).

Remember SOHCAHTOA? It's:

-sin = opposite/hypotenuse

-cos = adjacent/hypotenuse

-tan = opposite/adjacent.

We need to use sin in here.

The sin of C is $\frac{7}{25}$ , which in a calculator, gives $0.28$

7 0

3 years ago

A group of 60 households drank a total of 138 liters of water in a day. Estimate the average number of liters of water that one

KatRina [158]

Answer:

2.3

Step-by-step explanation:

138 divided by 60=2.3

divide the amount consumed by the total number of households involved

3 0

3 years ago

Which of the following equations have no solution? Select all that apply.

lana [24]

The answer should be B and A

3 0

4 years ago

Read 2 more answers

Y=x^2−12x+34<br><br> solve it please

abruzzese [7]

First you subtract whatever you do on one side to the other. So first divide by 2 which cancels the 2, then repeat on other side. Divide 12 by 2 which you get 6. So now you have x-6x+34 which equals 5x+34 which then turns into 39x

6 0

4 years ago