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mojhsa [17]
2 years ago
8

Find the volume of this right triangular

Mathematics
1 answer:
timama [110]2 years ago
5 0

Answer:

593.0 cm cubed.

Step-by-step explanation:

Volume of traingular prism equals to area of cross-section times height.

10.2 \times 10.2 \times 1/2=52.02

Area of cross-section is 52.02 ccm squared.

Multiply it with height.

52.02 \times 11.4=593.028

The volume of the right triangular prism is 593.0 rounded to the  nearest tenths centimeters cubed.

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2 years ago
Which expression is a perfect cube
mamaluj [8]

Answer: some perfect cubes are

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Step-by-step explanation:

A perfect cube of a number is a number that is equal to the number, multiplied by itself, three times. If x is a perfect cube of y, then x = y3. Therefore, if we take the cube root of a perfect cube, we get a natural number and not a fraction. Hence, 3√x = y. For example, 8 is a perfect cube because 3√8 = 2.

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2 years ago
Read 2 more answers
A test is worth a total of 150 points and contains 70 questions. Some of the questions are worth 2 points and some are worth
FrozenT [24]

Answer:

65 two-point questions, and 5 four-point questions.

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Step-by-step explanation:

1. Assigning variables and writing equations

We will set the number of 2 point questions as "x" and number of 4 point questions as "y"

We know that:

x+y=70 (number of 2 point questions+number of 4 point questions=total number of questions)

2x+4y=150 (number of points that a two point question is worth*number of two point questions+number of points that a four point question is worth*number of four point questions=total points on test)

2. Combining equations

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We will solve one of these equations.

x+y=70

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Next, we will substitute the other equation with this solution.

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Use this solution to find x.

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<em>We found that there are 65 two-point questions, and 5 four-point questions. </em>

3. Finding Emma's test results

In this case, we know how many two-point questions she answered. So, we will only be using one variable in this equation, which is y.

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92+4y=100

4y=8

y=2

<em>So, she answered 2 questions correctly. </em>

4 0
3 years ago
Valentina purchased 200 beads for $48 to make necklaces. If she needs to buy 25 more beads, how much will she pay if she is char
meriva
\frac{200}{48} = \frac{25}{x}  \\  \\ 200x=48 (25) \\  \\ 200x =1200  \\  \\ \boxed {x=6}



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3 years ago
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