HURRY PLEASE WILL MARK BRAINLIEST PLEASE ANSWER 3 & 4!!!!!!

Mathematics

1 answer:

muminat3 years ago

3 0

Answer:

Step-by-step explanation:

3. 6 in squared (a)

4. 25 cm squared (d)

ols mark brainliest if it helped!!!

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Simplify (3w^2-7w+6)+(-5w^2+2w+1)

leva [86]

Answer:

-2w^2 - 5w + 7

Step-by-step explanation:

Just the values with the same powers of w

(3w^2-5w^2)+(-7w+2w)+(6+1)

-2w^2 - 5w + 7

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3 years ago

What is the value of x?

neonofarm [45]

Answer:

Step-by-step explanation:

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3 years ago

Someone help me with my math homework pleaseee. Find the volumes of the pyramids and the height is 7cm for the first one.

gregori [183]

$\bf \textit{volume of a pyramid}\\\\
V=\cfrac{1}{3}Bh\qquad 
\begin{cases}
B=\textit{area of the base}\\
h=height
\end{cases}$

now, the first one, on the far-left.... can't see the height.. but I gather you do, now as far as its Base area, well, the bottom is just a 12x12 square, so the area of its base is just 12*12

now, the middle pyramid, has a height of 6, the base is also a square, 8x8, so the Base area is just 8*8

now the last one on the far-right

has a height of 8, the Base is a Hexagon, with sides of 6

$\bf \textit{area of a regular polygon}\\\\
A=\cfrac{1}{4}ns^2cot\left( \frac{180}{n} \right)\qquad 
\begin{cases}
n=\textit{number of sides}\\
s=\textit{length of one side}\\
\frac{180}{n}=\textit{angle in degrees}\\
----------\\
n=6\\
s=6
\end{cases}\\\\\\ A=\cfrac{1}{4}\cdot 6\cdot 6^2\cdot cot\left( \frac{180}{6} \right)$

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3 years ago

What is the factored form of 8x^2+18x+9?

forsale [732]

Factored form is (4x+3)(2x+3)

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3 years ago

What is a force described by

Dima020 [189]

Answer:

a force is described by its strength and by the direction in which it acts. -The strength of a force is measured in the SI unit called the Newton (N).

Step-by-step explanation:

4 0

3 years ago

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