3 years ago

Can someone help me with this math?

Mathematics

1 answer:

Lapatulllka [165]3 years ago

6 0

Answer:

I think it's 3 and 4,

Step-by-step explanation:

cuz it's more than 3 and less than 5

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What is the ratio of the volume of Cylinder A to the volume of Cylinder B?

Elodia [21]

Answer: 84.78 : 50.24

Step-by-step explanation:

Volume of cylinder A V= 3.14 * 3^2* 3

v= 84.78

Volume of Cylinder B v= 3.14 * 2^2 * 4

v= 50.24

84.78 : 50.24

3 0

4 years ago

Henri built a lantern in the shape of a square pyramid. He wants to cover the entire pyramid with fabric. How much fabric will h

aliina [53]

Answer:

The answer is 44.84. I dont actually see the correct answer here.

Step-by-step explanation:

The formula for the surface area of a square pyramid is a√(a2 + 4h2). In your pyramid a=4, and h=3. This gives 44.84 as the answer.

4 0

3 years ago

Read 2 more answers

Help solve this matrix problem for -4a+2b=

dlinn [17]

Step-by-step explanation:

$A = \begin{bmatrix} - 3 & 1\\ - 6 & 9\end{bmatrix} \: and \: B = \begin{bmatrix} - 4 & - 3 \\ - 9 & 9\end{bmatrix} \\\\-4A+2B = - 4\begin{bmatrix} - 3 & 1\\ - 6 & 9\end{bmatrix} + 2\begin{bmatrix} - 4 & - 3 \\ - 9 & 9\end{bmatrix} \\\\-4A+2B = \begin{bmatrix} - 3(-4) & 1(-4)\\ - 6(-4)& 9(-4)\end{bmatrix} + \begin{bmatrix} - 4(2) & - 3(2) \\ - 9(2) & 9(2)\end{bmatrix} \\\\-4A+2B = \begin{bmatrix}12 & -4\\ 24& -36\end{bmatrix} + \begin{bmatrix} - 8 & - 6 \\ - 18 & 18 \end{bmatrix} \\\\-4A+2B = \begin{bmatrix}12+(-8) & -4+(-6)\\ 24+(-18)& -36+18\end{bmatrix} \\\\-4A+2B = \begin{bmatrix}12-8 & -4-6\\ 24-18 & -36+18\end{bmatrix} \\\\\huge\red{-4A+2B }= \orange {\begin{bmatrix}4 & -10\\ 6 & -18\end{bmatrix}} \\$