3 years ago

Gabe and Caden mow lawns

Mathematics

1 answer:

7nadin3 [17]3 years ago

7 0

Answer:

what is the question?

Step-by-step explanation:

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The mass of a cylinder made of barium with a height of 2 inches depends on the radius of the cylinder as defined by the function

svp [43]

Answer:

$r=22.07\ in$

Step-by-step explanation:

<em><u>The correct function is</u></em>

$m(r)=7.188\pi r^{2}$

we have

System of equations

$m=7.188\pi r^{2}$ -----> equation A

$m=11,000$ -----> equation B

Solve by substitution method

substitute equation B in equation A

$11,000=7.188\pi r^{2}$

Solve for r

Divide by 7.188π both sides

$r^{2}=\frac{11,000}{7.188\pi}$

square root both sides

$r=22.07\ in$

5 0

3 years ago

Read 2 more answers

Gregory predicts that 310 people will attend the spring play. And there was an actual total of 220 people who attended the sprin

rodikova [14]

310 - 220 = 90
90/310 = x/100 (cross multiplication)
9000 = 310x
9000/310 = x
x = around 29%

8 0

3 years ago

Dale bought a map of his city it uses a scale of 1 inch = 8 miles Dale house and school are 1 1/2 inches apart on the map how fa

shtirl [24]

Alright, if the original scale was 1 inch = 8 miles, and Dale's house to his school are 1 1/2 inches apart, let's find the amount of miles.

Here's a fast way. 1 inch is 8 miles, and half of 8 equals 4 miles, which is 1/2 of an inch., 8 + 4 = 12 miles.

So if his house and the school were 12 miles apart, and we we're using the 1 inch. = 6 miles scale, then it'd be 2 inches on the map.

How?

If 1 inch. = 6 miles
x inches = 12 miles

12/6 = 2

2 inches = x

4 0

3 years ago

Why is -x/y equivalent to x/-y

balandron [24]

Answer:

Step-by-step explanation:

standard form of fraction = -a/b

Example:

-4/2 = -2

4/-2 = -2

5 0

3 years ago

What is the slope of this line? y = -3/4 x + 7/8

Alexeev081 [22]

I am sorry I can help more but
Google can graph lines if that helps

You just look up graph of a line with your numbers

7 0

3 years ago