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2 years ago

The triangular prism below has a height of 9 units and a volume of 162 units. Find

Mathematics

1 answer:

DanielleElmas [232]2 years ago

6 0

Answer: 18

Step-by-step explanation:

Using the Triangular Prism formula,

V=A (sub)B(sub) h

Solving for A (sub)B(sub)

A (sub)B(sub) = V/h = 162/9 = 18

Hope this helps...

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Lexie, a bowler, claims that her bowling score is more than 140 points, on average. Several of her teammates do not believe her,

Crazy boy [7]

Answer:

The test statistic is $t = 3.744$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 140$

The The level of significance is $\alpha = 0.05$

The sample size is n = 18

The null hypothesis is $H_o : \mu = 140$

The alternative hypothesis is $H_a : \mu > 140$

The sample mean is $\= x = 155$

The standard deviation is $\sigma = 17$

Generally the test statistics is mathematically represented as

$t = \frac{\= x - \mu }{ \frac{ \sigma}{ \sqrt{n} } }$

substituting values

$t = \frac{ 155 - 140 }{ \frac{ 17 }{ \sqrt{18} } }$

$t = 3.744$

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3 years ago

What is X for? x+20=35-4x

Helen [10]

X+4x=35-20. 5x=35-20. 5x=15. X=3

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3 years ago

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Salsk061 [2.6K]

Answer:

-12f

Step-by-step explanation:

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3 years ago

Create at least 3 subtraction problems that have a common denominator of 20 using the fractions one sixth two fifths four sevent

Umnica [9.8K]

Answer:

1. 1/2-2/5

2. 3/4-2/5

3. 1/2-3/4

Step-by-step explanation:

For you to be able to create such fractions you must make sure that the numerator is divisible by 20.

Clearly the number 2,4 and 5 can divide 20.so therefore any fraction formed with them will give the denominator 20

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3 years ago

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Nostrana [21]

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3 years ago

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