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jolli1 [7]
3 years ago
11

Find the volume. Round your answer to the nearest tenth.

Mathematics
1 answer:
Simora [160]3 years ago
4 0

Answer:

94.6m³

Step-by-step explanation:

The diagram shown in this question is a trapezoidal prism.

The volume of a trapezoidal prism is calculated as:

L × H × (P + Q/2)

Where L = Length = 4m

H = Height = 4.3m

P = Base width = 8m

Q = Top width = 3m

The volume of the trapezoidal prism =

4 × 4.3 ×(8+3/2)

=4 × 4.3 ×(11/2)

= 94.6m³

Therefore, the volume of the trapezoidal prism to the nearest tenth = 94.6m³

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We are again studying the times required to solve two elementary math problems. Suppose we ask four students to attempt both Pro
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Answer:

(-16.494 ; -3.506)

Step-by-step explanation:

student Prob A Prob B difference, d (A-B)

1 20 35____ - 15

2 30 40 ___ - 10

3 15 20 ___ - 5

4 40 50 __ - 10

Difference, d = -15, -10, -5, -10

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Standard deviation of d ; Sd = 4.082

The confidence interval for the difference is given as :

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Tcritical at 95%; df = n - 1 ; 4 - 1 = 3

Tcritical(0.05, 3)). = 3.182

C.I = -10 ± 3.182(4.082/√4)

C.I = -10 ± 6.494462

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3 years ago
-(4k^2-13k-12)+5k^2-8k How would I be able to write this in standard form with the greatest exponent being first.
aliina [53]

Answer:

Step-by-step explanation:

Negative sign is outside the parenthesis. So, each term of (4k² - 13k -12) should be multiplied by (-1)

-(4k² - 13k -12) + 5k² - 8k = 4k²*(-1) - 13k*(-1) - 12*(-1) + 5k² - 8k

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Combine like terms,

                                        = -4k² + 5k² + 13k - 8k + 12

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Like terms are the terms with same variable with same exponent.

(-4k² ) and 5k² are like terms

13k and (-8k) are like terms

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3 years ago
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Can someone help me with number 2. Please explain your answer.
yKpoI14uk [10]
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3x+y = 2
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x = 18

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3 years ago
Twice the difference of x and y divided by 5 times their product.
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Step-by-step explanation:

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