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Mamont248 [21]
3 years ago
10

I need help please?!!

Mathematics
1 answer:
Nataly [62]3 years ago
7 0

Answer:

- 5

Step-by-step explanation:

The opposite of 7c is the negative of 7c, that is - 7c

Thus the sum of 7c - 5 and the opposite of 7c is

7c - 5 + (- 7c) = 7c - 5 - 7c = - 5

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The radius of a cylindrical water tank is 6.5 ft, and its height is 19 ft. What is the volume of the tank?
creativ13 [48]

Answer:

The volume of the cylinder is 2520.64ft³

Step-by-step explanation:

To calculate the volume of a cylinder we have to use the following formula:

v = volume

h = height = 19ft

π = 3.14

r = radius = 6.5ft

v = (π * r²) * h

we replace with the known values

v = (3.14 * (6.5ft )²) * 19ft

v = (3.14 * 42.25ft²) * 19ft

v = 132.665ft² * 19ft

v = 2520.64ft³

The volume of the cylinder is 2520.64ft³

4 0
3 years ago
How do you factor out the coefficient of the variable in 2b+8
tekilochka [14]
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8 0
3 years ago
WHICH IS LONGER 2 MILES OR ````3 KILOM`ETERS
kompoz [17]
I think 2 miles hoped this helped
8 0
3 years ago
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Javier earns $7.50 per hour and works 20 hours per week. He wants to know how many weeks, w, he will need to work to save
disa [49]

Answer:

8 weeks

Step-by-step explanation:

So first you find out how much money he makes per week, by doing 7.5 x 20 you will find that. Now you need to find how many weeks it will take, find this by dividing 1200 by the amount he makes per week and you will end up with 8.

5 0
3 years ago
Read 2 more answers
Given f(x) =3x-7, find f(x+1)+f(1)
ELEN [110]

Answer:

3x - 8

Step-by-step explanation:

To find f(x + 1) substitute x = x + 1 into f(x)

f(x + 1) = 3(x + 1) - 7 = 3x + 3 - 7 = 3x - 4

Similarly

f(1) = 3(1) - 7 = 3 - 7 = - 4

Hence

f(x + 1) + f(1) = 3x - 4 - 4 = 3x - 8

3 0
3 years ago
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