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1 year ago

15

A teacher gave students seven questions and wrote that she would randomly choose one of the seven questions for an exam. If harr

y prepared for only one of the questions, what is the probability that he did not study for the question that the teacher put on the exam?

1 answer:

VashaNatasha [74]1 year ago

6 0

Answer:

I thinks its

$\frac{6}{7}$

But i can be wrong

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The equation d = m/v can be used to calculate the density, d, of an object with mass, m, and volume, V. Which is an equivalent e

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The equivalent equation solved for v is m/d=v.

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1 year ago

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I increase a number by 24% the answer is 6014 what number did I start with

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Answer:

1443.36

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6014*.24=1443.36

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A grapefruit is 8% heavier than an orange, and an apple is 10% lighter than the orange.

qwelly [4]

A = 0.9 o
<span>so, </span>
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2 years ago

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A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needs to be replaced. From past

Volgvan

Answer: We reject the null hypothesis, and we use Normal distribution for the test.

Step-by-step explanation:

Since we have given that

We claim that

Null hypothesis : $H_0:\mu\geq 50000$

Alternate hypothesis : $H_1:\mu$

There is 5% level of significance.

$\bar{X}=46800\\\\\sigma=9800\\\\n=29$

So, the test statistic would be

$z=\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{46800-50000}{\dfrac{9800}{\sqrt{29}}}\\\\z=-1.75$

Since alternate hypothesis is left tailed test.

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2 years ago

Compare the functions shown below: f(x) = 4x + 5 g(x) tangent function with y intercept at 0, 2 h(x) = 3 sin(2x + π) − 2 Which f

KATRIN_1 [288]

The y-intercept of the graph of a function is the value of f(0) for any function f.
That is, it is the y-value in the pair (0, y)

The y-intercept of <span>f(x) = 4x + 5 is f(0)=4*0+5=5

The y-intercept of (0, 2) is 2.

The y-intercept of </span>h(x) = 3 sin(2x + π) − 2 is:

h(0) = 3 sin(2*0 + π) − 2=3 sin(π) − 2=3*0-2=-2

<span>Answer: The function f has the greatest y-intercept.

</span>

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1 year ago