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denis-greek [22]
3 years ago
14

A prism is created using 2 regular pentagons as bases. The apothem of each pentagon is 2.8 centimeters. Which expression represe

nts the volume of the prism, in cubic centimeters? 9x2 + 7x 14x2 + 7x 16x2 + 14x 28x2 + 14x
Mathematics
2 answers:
BartSMP [9]3 years ago
8 0

Answer:

it b on edge

Step-by-step explanation:


mash [69]3 years ago
5 0
Recall that the volume of a regular prism is given by the area of the base times the height.

Given that the base of the prism is a regular pentagon with an apothem of 2.8 centimeters.
The pentagon consist of 5 isosceles triangles with the apothem as the height and the side of the pentagon as the base.

Recall that the are of a triangle is given by 1/2 base times height.

Thus the area of of the pentagon base of the prism is given by
Area= \frac{5}{2} x\times2.8=7x

Therefore, the volume of the prism is given by
Volume=7x(2x+1)=14x^2+7x
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An electrician charges an initial fee of $35 for attending a house call. Thereafter, he charges $15 for every hour spent on the
umka21 [38]

Answer:

1 hour=35+15=50

2 hours=35+15(2)=65

3 hours=35+15(3)=80

4 hours=35+15(4)=95

Step-by-step explanation:

3 0
2 years ago
A coin will be tossed three times, and each toss will be recorded as heads (H) or tails (7). Give the sample space describing al
Fynjy0 [20]

Answer:

A). {HHH, HHT, HTH, THH, TTH,THT,HTT,TTT}

(B). {HHH, HHT, THH, THT}

Step-by-step explanation:

Given:

A coin is to be tossed three times and each tossed will be recorded as Head(H) and Tails(T).

To Find:

(a). Sample Space

(b). Event that the second toss is Heads

Explanation:

(A). Sample Space: When a coin is tossed 3 times

{HHH, HHT, HTH, THH, TTH,THT,HTT,TTT}

(B). Event that second toss is Head

{HHH, HHT, THH, THT}

6 0
3 years ago
Is 4 to 7 the same as 7 to 4? Explain why or why not.
Julli [10]
Yes because 4 to 7 is the same as 7 x 4 which equals 28. 7 to 4 is the same as 7 x 4 which also equals 28. 
3 0
3 years ago
Read 2 more answers
Write the following equation in the general form ax by c = 0. y - x - 1 = 0
Elena-2011 [213]

If you would like to write y - x - 1 = 0 in the general form, you can do this using the following steps:

The general form of the equation is: ax + by + c = 0.

y - x - 1 = 0

-x - y - 1 = 0


The correct result would be <span>-x - y - 1 = 0</span>.

8 0
3 years ago
The variable x represents a value in the set (4,5,6,7) which value of x makes 2(x-4) + 3=5 a true statement ?
brilliants [131]

Answer:

5

Step-by-step explanation:

2(1)+3=5

the answer is 5

5 0
2 years ago
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