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3 years ago

I just need help with #21. I don’t know to figure it out. Please help. Thanks. :)

Mathematics

1 answer:

Karolina [17]3 years ago

3 0

1 and 3 are angles of depression
2 and 4 are angles of elevation.

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What does 5/6 equal as a decimal?

AlexFokin [52]

Hi there! To turn a fraction into a decimal we divide the numerator by the denominator. So, we have the fraction 5/6 where 5 is the numerator and 6 is the denominator. 5÷6=0.8333 repeating. Therefore, 5/6 as a decimal is 0.8333

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3 years ago

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Find the product -mnp(3m-5n+7p)

allochka39001 [22]

(−m)(n)p(3m−5n+7p)

=((−m)(n)p)(3m+−5n+7p)

=((−m)(n)p)(3m)+((−m)(n)p)(−5n)+((−m)(n)p)(7p)

=−3m^2np+5mn^2p−7mnp^2

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3 years ago

Determine o x 2x+15 3x-25

Papessa [141]

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2 years ago

What is 280.0575 as a fraction

LUCKY_DIMON [66]

Answer...

$280\frac{23}{400}$

Steps....

1) Rewrite the decimal number as a fraction with 1 in the denominator

2) Multiply to remove 4 decimal places. Here, you multiply top and bottom by $10^{4}$ = 10000

3) Find the Greatest Common Factor (GCF) of 2800575 and 10000, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 25

4) Simplify the improper fraction!

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2 years ago

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A machine is used to fill containers with a liquid product. Fill volume can be assumed to be normally distributed. A random samp

motikmotik

Answer:

There is no statistical evidence at 1% level to accept that the mean net contents exceeds 12 oz.

Step-by-step explanation:

Given that a random sample of ten containers is selected, and the net contents (oz) are as follows: 12.03, 12.01, 12.04, 12.02, 12.05, 11.98, 11.96, 12.02, 12.05, and 11.99.

We find mean = 11.015

Sample std deviation = 3.157

a) $H_0: \bar x= 12 oz\\H_a: \bar x >12$

(Right tailed test)

Mean difference /std error = test statistic

$\frac{11.015-12}{\frac{3.157}{\sqrt{10} } } \\=-0.99$

p value =0.174

Since p >0.01, our alpha, fail to reject H0

Conclusion:

There is no statistical evidence at 1% level to accept that the mean net contents exceeds 12 oz.

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3 years ago