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jeka94
3 years ago
14

What is the volume of an equilateral triangular prism?

Mathematics
1 answer:
Nata [24]3 years ago
6 0
Actually, the "slant height" is 4, but the vertical height or "altitude" of the equilateral triangle is not 4

but anyway.....\bf \begin{array}{cllll}
\textit{height of an equilateral triangle}\\\\
h=\cfrac{s\sqrt{3}}{2}\\
----------\\
\textit{area of an equilateral triangle}\\\\
A=\cfrac{s^2\sqrt{3}}{4}
\end{array}\qquad s=\textit{length of one side}

and the volume, is the area of the triangle, times the length, so, whatever you get for the area of the triangle * 10
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5 0
2 years ago
The additive inverse of (-2x + 4) is __________.
monitta

Answer:

2x - 4

Step-by-step explanation:

Additive inverse of -2x + 4 = 2x - 4

To find the additive inverse, change the sign of each term

6 0
2 years ago
Monica ran 20 miles in two days. How many miles did she run each day, if she ran 4 more miles on the second day than on the firs
sweet-ann [11.9K]

Answer:6 miles

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Trina ran 2 1/2 miles of Friday, 2 3/4 miles on Saturday and 3 mies on SUnday. The next week she ran the same amount. How far in
vodka [1.7K]

Answer:

16 \frac{1}{2} miles

Step-by-step explanation:

2 \frac{2}{4} + 2 \frac{3}{4} = 4 \frac{5}{4} which equals 4 + 1 \frac{1}{4} or 5 \frac{1}{4}

5 \frac{1}{4} + 3 = 8 \frac{1}{4}

she ran 8 and one-quarter miles in the first week and if she ran the same amount the second week then we can add to get the answer:

8 \frac{1}{4} +  8 \frac{1}{4} = 16 \frac{2}{4} or 16 \frac{1}{2}

5 0
2 years ago
Amy drops a ball from an initial height of 30 feet above the ground. After how many seconds with a ball reach the ground? Roger
Vitek1552 [10]

Answer:

Option 2. 1.4 seconds

Step-by-step explanation:

As we know when a ball is dropped from a height then we apply the formula

h=ut+\frac{1}{2}gt^{2}

Here h = height from the ground

u = initial speed of the ball

t = time taken to reach the ground

g = acceleration due to gravity

Now we put the values of these parameters

h = 30 feet ≅ 9.144 met.

u = 0

g = 9.8 met/sec²

9.144 = 0 + 1/2×9.8×t²

9.144 = 4.9×t²

t² = 9.144÷4.9

t² = 1.87

t = 1.37 ≅ 1.4 seconds

Therefore option 2 is the answer.

4 0
2 years ago
Read 2 more answers
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