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3 years ago

Find the volume of a pyramid with a square base, where the area of the base is 7.9 m^2

1 answer:

6 0

The pyramid formula:
$\frac{1}{3} \times base \times height$

The volume in this case would be:

1/3×7.9×4
=79/30×4
=10.5333...
≈10.5 m^3

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Which is the net for this rectangular prism?

dybincka [34]

Answer:

On the left the one down below

Step-by-step explanation: I check it to make sure it was right

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2 years ago

Two angles in a triangle are 30 degrees and 40 degrees. Find the missing angle measure. Please show your math work step by step

brilliants [131]

Answer:

110

Step-by-step explanation:

Hello There!

If you didn't know the rule about angles in a triangle is that they have a sum of 180

So we can find the measure of the missing angle by subtracting the given angles (in this case 30 and 40) from 180

so the missing angle = 180 - 30 - 40

180 - 30 = 150

150 - 40 = 110

so the missing angle = 110

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3 years ago

Identify the expression which represents the calculation “subtract 3 from 15, then divided by 6

matrenka [14]

Answer:

$\frac{15-3}{6}$

Step-by-step explanation:

You would start by writing the expression for “subtract 3 from 15", which would be $\frac{15-3}{6}$ , then you would add on "then divided by 6", which would make it

4 0

3 years ago

Read 2 more answers

(−t 4 −5t 3 −10t 2 )+(9t 3 +3t 2 −1)

klemol [59]

Answer:

$\left(-t^4-5t^3-10t^2\right)+\left(9t^3+3t^2-1\right)=-t^4+4t^3-7t^2-1$

Step-by-step explanation:

Given the expression

$\left(-t^4\:-5t^3\:-10t^2\:\right)+\left(9t^3\:+3t^2\:-1\right)$

Remove parentheses: (a)=a

$=-t^4-5t^3-10t^2+9t^3+3t^2-1$

Group like terms

$=-t^4-5t^3+9t^3-10t^2+3t^2-1$

Add similar elements

$=-t^4-5t^3+9t^3-7t^2-1$ ∵ $-10t^2+3t^2=-7t^2$

Add similar elements

$=-t^4+4t^3-7t^2-1$ ∵ $-5t^3+9t^3=4t^3$

Thus, the equivalent expression in simplified form:

$\left(-t^4-5t^3-10t^2\right)+\left(9t^3+3t^2-1\right)=-t^4+4t^3-7t^2-1$

4 0

3 years ago

Is 5/6 closer to 1 or 0

Tasya [4]

The easiest way to think about this is to give all of the numbers common denominators:
1 can be written as 6/6
0 can be written as 0/6

Now we can see that 5/6 is only 1/6 away from 1, while it is 5/6 away from 0.

So, 5/6 is closer to 1!

6 0

3 years ago

Read 2 more answers