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3 years ago

I need help plz 10 points

Mathematics

1 answer:

Vaselesa [24]3 years ago

5 0

Answer:

87.9

Step-by-step explanation:

$\pi {2}^{2} \times 2 + 2\pi \times 2 \times 5 = 28\pi = 87.9$

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Vanyuwa [196]

Answer:

100

Step-by-step explanation:

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3 years ago

Determine the equation of the linear function that generates the following table of values.

Mashutka [201]

Answer:

y = -19x + 14

Step-by-step explanation:

For each increase of x by 1, y decreases by 19, giving us -19x. When x = 0, y = 14, therefore, y = -19x + 14

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2 years ago

Which of the following steps were applied to abcd to

Natasha_Volkova [10]

Answer:the steps of me and u shawty

Step-by-step explanation:.

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4 years ago

If the volume of a cone is 168 pi inches and its altitude is 14 inches, what is the radius of the cone? A. 36 inches B. 12 inche

tamaranim1 [39]

The radius of the cone is 6 inches, which i mentioned in option D, for the volume of a cone is 168 $\pi$ inches and its altitude is 14 inches.

Step-by-step explanation:

The given is.

Volume of the cone is 168 $\pi$

Altitude of the cone is 14 inches

Step:1

Formula for Volume of cone is,

$V = \pi r^{2} \frac{h}{3}$ ....................................(1)

Where,

V = 168 $\pi$ cubic inches

h = 14 inches

Step:2

From the Eqn (1),

168 $\pi$ = $\pi r^{2} \frac{14}{3}$ (∵ Cancel $\pi$ on both sides)

168 = $r^{2} \frac{14}{3}$

168 × 3 = $r^{2} 14$

504 = $r^{2} 14$

$r^{2}$ = 36

r = $\sqrt{36}$

r = 6 inches

Result:

Thus the radius of the cone is 6 inches, If the volume of a cone is 168 pi inches and its altitude is 14 inches.

7 0

4 years ago

Solve by graphing. x2 2x - 8 = 0<br> a. –2, 4<br> b. 2, –4<br> c. 2, –4<br> d. –2, 4

Luba_88 [7]

Well, to solve, garph the equation y=x^2+2x-8 and y=0
see where they intersect

anyway the easier way is to factor but anyway
0=(x-4)(x+2)

anyway

solution is x=4 and -2

A and D are answers (they are same)

4 0

4 years ago

Read 2 more answers