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2 years ago

Help me with number three

Mathematics

2 answers:

Volgvan2 years ago

8 0

Answer:

Volume: 16.76 cm^3

Surface area: 40.67 cm^2

Step-by-step explanation:

To find volume, you use the formula V=πr^2*h/3

To find the surface area you use formula A=πr(r+√h^2+r^2)

trasher [3.6K]2 years ago

6 0

Answer:

V = 16.76

Surface Area = 40.67

Step-by-step explanation:

V=πr2h

A=πrl+πr2

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Setler79 [48]

The positive integers are: +2, +11, +8, 28, and 13
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the 0 should go in the circle between the two charts

3 0

3 years ago

Read 2 more answers

Please help. I think its B since the y-intercept is -1 and it rises up 3 and goes over 1 so that means it is just 3.

borishaifa [10]

You are correct about the y-intercept. In case you are unsure about the slope, you can check using y1 - y2 / x1 - x2:

(0, -1) and (1, 2)

-1 - 2 / 0 - 1
-3 / -1
3

The slope is 3; you chose the correct answer, great job.

8 0

3 years ago

How do you solve this <br> 3(2.6x-3=4(-7-2.8)

Maslowich

Answer:

$x=-3.87$

Step-by-step explanation:

We want to solve for $x$ in $3(2.6x-3)=4(-7-2.8)$

We expand to get: $7.8x-9=-28-11.2$

We group similar terms to get:

$7.8x=9-28-11.2$

This simplifies to $7.8x=-30.2$

Divide both sides by 7.8 to get

$x=\frac{-30.2}{7.8}= -3.8718$

4 0

4 years ago

What was the percent of decrease in the number of pumpkins sold

Fofino [41]

% decrease = change/original price x 100%
= (1200 - 900)/1200 x 100%
= 300/1200 x 100%
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Therefore, the number of pumpkins sold decreased by 25%.

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3 years ago

Which one is correct?

Mariana [72]

Yes, it is a rhombus because the diagonals are congruent.

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3 years ago