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3 years ago

Could u help me with these questions on the back? I’m very confused please

Mathematics

1 answer:

Salsk061 [2.6K]3 years ago

6 0

Answer:

Step-by-step explanation:

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2x−3y for x=−3 and y=−4

PilotLPTM [1.2K]

Answer:

Explanation:

(2)(−3)−(3)(−4)

(2)(−3) = -6

(3)(−4) = -12

-6 - (-12) = 6

3 0

4 years ago

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How many pounds do 13,406,190 pennies weigh?

Mama L [17]

Answer:

Step-by-step explanation:

13,406,190*4.0=53,624,760 grams

Putting the 53,624,760 grams into grams to pounds calculator you get approximatly 118,222.36 pounds of pennies.

That is a lot of pennies. Also, 13,406,190 pennies is about 134,062 dollars. Pretty insane.

7 0

3 years ago

The formula for the volume V of a cylinder is LaTeX: V=\pi r^2hV = π r 2 h, where r is the radius of the base anThe formula for

Alekssandra [29.7K]

Answer:

$h = \frac{V}{\pi r^2}$

$h = 4 cm$

Step-by-step explanation:

Volume of cylinder is given as $V = \pi r^2 h$

V is the volume the cylinder, r is its radius at the base, while is its height.

To select the formula for h (height) let's make h the subject of the formula as follows:

$V = \pi r^2 h$

$\frac{V}{\pi r^2} = \frac{\pi r^2 h}{\pi r^2}$ (dividing both sides of the equation by $\pi r^2$ )

$\frac{V}{\pi r^2} = h$

$h = \frac{V}{\pi r^2}$

Use the formula above to find the height of the given cylinder where Volume (V) = 36π cm³, and base radius (r) = 3 cm:

$h = \frac{36 \pi}{\pi 3^2}$ (substitution)

$h = \frac{36 \pi}{\pi * 9}$

$h = \frac{36 \pi}{9 \pi}$

$h = \frac{36 \pi}{\pi * 9}$

$h = \frac{36}{9}$ ( $\pi$ cancels $\pi$ )

$h = 4 cm$

8 0

3 years ago

Which rule describes the pattern shown?

rusak2 [61]

Answer:

add by 13 so it would be letter A

3 0

3 years ago

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Charlie has a $50 gift card to Smoothie World. He purchased the same smoothie 8 times and has $14 left on it. What was the price

AnnZ [28]

Answer:

Each smoothie was $4.5.

Step-by-step explanation:

We know that he has $50 to use, and after he used it he had $14 left. That means he used $36.

If you divide 36 by 8, you get 4.5

Hope this helped! :D

4 0

3 years ago

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