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Lady bird [3.3K]
3 years ago
13

Calculate the volume of this regular solid.

Mathematics
1 answer:
IgorC [24]3 years ago
5 0

Answer:

V= 42.41

Step-by-step explanation:

V = \pi r^{2}\frac{h}{3}

where r is the radius = 3 and h is the height = 4.5

V= \pi × 3^{2} × \frac{4.5}{3}

V = 42.41

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Given the definitions of f(x) and g(x) below, find the value of f(g(-1)).
butalik [34]

Answer:

-18

Step-by-step explanation:

f(x) = 4x+14\\g(x) = 3x^{2} + 5x -6\\f(g(x)) = 4(3x^{2} + 5x -6)+14 \\f(g(-1)) = 4(3(-1 ^{2}) + 5(-1) -6) +14  \\\\= 4(3 - 5 - 6) + 14\\= 4 (-8) + 14\\= - 32 + 14 \\= -18

6 0
3 years ago
In one U.S.​ city, the taxi cost is $2 plus $0.50 per mile. If you are traveling from the​ airport, there is an additional charg
mario62 [17]

Answer:

60 miles

Step-by-step explanation:

the equation for the cost for traveling from the airport can be represented by y= .50x + 2 + 6

where y is the final cost and x is the amount of miles. plug in 38 to y to get 38 = .50× +2 + 6. Solve for x.

38-6 =.50× +2

32 =.50x +2

32-2=.50x

30=.50x

30/.50=x

60=x

therefore, the 60 miles is how far you can go with $38

8 0
3 years ago
Help I have no idea to do this!! I’m stuck!
marysya [2.9K]

Answer: 7

Step-by-step explanation:

A \cap C denotes the intersection of A and C, or in other words, how many elements are shared between them.

The number of elements is 2 + 5 = 7

4 0
2 years ago
Read 2 more answers
Find the length of x plsss
Elanso [62]

Answer:

I am not sure about this one but I think x = 13.89

Step-by-step explanation:

Have a nice day!

5 0
3 years ago
Please I don’t know math
lukranit [14]

Answer:

21%

Step-by-step explanation:

just amount they spend divided by amount they earned

5 0
3 years ago
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