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3 years ago

Will Give Brainliest! And 5 stars! And Thanks.... If correct

Mathematics

1 answer:

Harrizon [31]3 years ago

5 0

Answer:

Step-by-step explanation:

T=16x+96 so if he wants to receive 130$ a day he must work at least 3 hours of over time.

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Suppose a bowler claims that her bowling score is not equal to 150 points, on average. Several of her teammates do not believe h

Juliette [100K]

Answer:

The test statistic (z-score) of this one-mean hypothesis test is z=1.823.

Step-by-step explanation:

The null and alternative hypothesis are:

$H_0: \mu=150\\\\H_a: \mu\neq 150$

The significance level is 0.05.

The sample size is n=22.

The sample mean is M=157.

The standard deviation is 18.

The z-score can be calculated as:

$z=\frac{M-\mu}{\sigma/\sqrt{n}}=\frac{157-150}{18/\sqrt{22}} =\frac{7}{3.84} =1.823$

The test statistic (z-score) of this one-mean hypothesis test is z=1.823.

4 0

4 years ago

2 questions 90 points

saw5 [17]

Answer:

1) Volume of prism = $\frac{105}{8}ft^3=13.125ft^3$

2) Option B is the correct answer.

Explanation:

1) Volume of a prism is given by the expression, Volume V = Base area of prism x Height of prism.

Base area = $3\frac{1}{2} *2\frac{1}{2}=\frac{3*2+1}{2} *\frac{2*2+1}{2} =\frac{7}{2} *\frac{5}{2}=\frac{35}{4} ft^2$

Volume = $\frac{35}{4}*1\frac{1}{2} =\frac{35}{4}*\frac{1*2+1}{2}=\frac{35}{4}*\frac{3}{2}=\frac{105}{8}ft^3$

Volume of prism = $\frac{105}{8}ft^3=13.125ft^3$

2) Volume of a prism is given by the expression, Volume V = Base area of prism x Height of prism.

Base area = $4\frac{1}{4} *3in^2$

Volume = $4\frac{1}{4} *3*1\frac{1}{4}in^3$

Option B is the correct answer.

5 0

3 years ago

On Monday, your bank account balance was −$12.83. Because you didn't realize this, you wrote a check for $30.89 for groceries.

Ira Lisetskai [31]

Answer:

You owe $-43.72.

Step-by-step explanation:

Your balance was $-12.83 on Monday. You are writing a check for money you do not have, so you will owe more money.

-$12.83 - $30.89 = -$43.72

4 0

3 years ago

What is root -9 + root -12 written as a complex number in the form a + bi ?

patriot [66]

Answer:

Step-by-step explanation:

I assume you are talking about square roots when you say root...

Sqrt(-9) = 3i

Sqrt(-12) = 2Sqrt(3)i

Complex number is 3 + 2Sqrt(3) i

3 0

2 years ago

What is <img src="https://tex.z-dn.net/?f=3%5E%7Bx%7D%20%3D%20%5Cfrac%7B1%7D%7B9%7D" id="TexFormula1" title="3^{x} = \frac{1}{9}

Makovka662 [10]

$~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 3^x=\cfrac{1}{9}\implies 3^x=\cfrac{1}{3^2}\implies 3^x=3^{-2}\implies x = -2$

8 0

2 years ago