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3 years ago

What is the area of the drumhead on the drum shown below? Round to the nearest 10th.14 inches

1 answer:

5 0

The formula for finding the area of a circle is

a = pi × radius^2

Since the diameter is 14 inches, the radius is 7 inches, so to solve...

a = pi × 7^2
a = 3.14 × 49
a = 153.86

Rounded to the nearest tenth...

153.9 inches^2

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Every 2 seconds, the distance the mouse travels ___by ___feet!

Mrac [35]

(answer)increases, 22

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2 years ago

A vendor has 22 balloons for sale: 11 are yellow, 4 are red, and 7 are green. A balloon is selected at random and sold. If the b

pochemuha

Answer:

10/21

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3 years ago

Read 2 more answers

Find the measure of d.

ad-work [718]

Answer:

$d = 123$

Step-by-step explanation:

The given figure above is an inscribed quadrilateral with all four vertices lying on the given circle, thereby forming chords each.

Therefore, the opposite angles of the above quadrilateral are supplementary.

This means:

$c + 31 = 180$ , and

$d + 57 = 180$

Find the measure of d:

$d + 57 = 180$

Subtract 57 from both sides.

$d + 57 - 57 = 180 - 57$

$d = 123$

3 0

2 years ago

Please help, and thank you!

lawyer [7]

Answer:

3. C

4. D

Step-by-step explanation:

$x^2+25=0\\x^2=-25\\x=\pm\sqrt{-25}$

Once $\sqrt{-1}=i$

$x=\pm5i$

A quadratic equation has no real roots when the discriminant ( $\Delta$ ) is negative. $\Delta$ .

Let's try all the equations:

(A)

$2x^2-7x-9=0\\\\\Delta=\sqrt{\left(-7\right)^2-4\cdot \:2\left(-9\right)}\\\Delta=\sqrt{\left(-7\right)^2+4\cdot \:2\cdot \:9}\\\Delta=\sqrt{121} \\\Delta=11$