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3 years ago

11

SCHOOL Half of the students in Max’s class volunteer at the local community center. Fifteen students do not volunteer. If there

are 12 boys in Max’s class, how many girls are in his class?

1 answer:

damaskus [11]3 years ago

6 0

18. 15 x 2 = 30, 30-12=18

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The volume of a sphere is 1928pi m^3. what is the surface area of the sphere to the nears tenth

nika2105 [10]

$\bf \begin{array}{llll}
\textit{volume of a sphere}\\\\
V=\cfrac{4\pi r^3}{3}\\
----------\\
\textit{surface area of a sphere}\\\\
S=4\pi r^2
\end{array}\qquad r=radius\\\\
-----------------------------\\\\
V=1928\implies 1928=\cfrac{4\pi r^3}{3}\implies \cfrac{3\cdot 1928}{4\pi }=r^3
\\\\\\
\sqrt[3]{\cfrac{3\cdot 1928}{4\pi }}=\boxed{r}\qquad thus
\\\\\\
S=4\pi \left( \boxed{\sqrt[3]{\cfrac{3\cdot 1928}{4\pi }}} \right)^2$

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3 years ago

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Free_Kalibri [48]

By doing this

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7 0

3 years ago

Cos(3pi/4)= HELLPPPP

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3π/4 angle is in the second quadrant, so cos (3π/4) is going to be negative.

Reference angle of 3π/4 is (π - 3π/4) = π/4

cos(π/4) = √2/2

cos (3π/4) = - √2/2

Answer is C.

5 0

3 years ago

The absolute value function fx = - x -3

Ira Lisetskai [31]

Answer:

All real numbers less than or equal to

Step-by-step explanation:

4 0

3 years ago

A line passing through which of the following pairs of coordinates represents a proportional relationship? A. (1, 3) and (2, 6)

trasher [3.6K]

Answer:

Answer is A - (1, 3) and (2, 6)

Step-by-step explanation:

(1, 3) • 2

= (1 • 2, 3 • 2)

= (2, 6)

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Therefore, the answer is A.

3 0

3 years ago

Read 2 more answers