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Mrac [35]
3 years ago
9

Kayla buy's a shirt for $8.19 she pays with a $10 bill how much change will she receive

Mathematics
1 answer:
Orlov [11]3 years ago
8 0
Kayla will receive $1.81 change.

10.00-8.19= $1.81
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I will give you a Brainly crown if it is right. Will you help me
Rufina [12.5K]

Answer:

angle b is 30 degrees

Step-by-step explanation:

a right angle is 90 degrees so you can do 90 -60 witch gets you 30 degrees

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A geometric sequence has a first term of 3 and a fourth term of 81÷8.<br><br> Find the eighth term
tatuchka [14]

Answer:

6561 / 128

Step-by-step explanation:

The nth term of a geometric sequence is:

a = a₁ (r)ⁿ⁻¹

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81/8 = 3 (r)⁴⁻¹

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2 years ago
Two numbers that multiply to -100 and add to 15
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-5 and 20

Step-by-step explanation:

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3 0
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12 out of 15 students play in the school band. In a class of 45 students, how many do NOT play in the band? |​
jek_recluse [69]

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3 0
3 years ago
The p-value for a one-sided test of the population proportion is 0.0513. Which of
uysha [10]

Using the equation of the test statistic, it is found that with an increased sample size, the test statistic would decrease and the p-value would increase.

<h3>How to find the p-value of a test?</h3>

It depends on the test statistic z, as follows.

  • For a left-tailed test, it is the area under the normal curve to the left of z, which is the <u>p-value of z</u>.
  • For a right-tailed test, it is the area under the normal curve to the right of z, which is <u>1 subtracted by the p-value of z</u>.
  • For a two-tailed test, it is the area under the normal curve to the left of -z combined with the area to the right of z, hence it is <u>2 multiplied by 1 subtracted by the p-value of z</u>.

In all cases, a higher test statistic leads to a lower p-value, and vice-versa.

<h3>What is the equation for the test statistic?</h3>

The equation is given by:

t = \frac{\overline{X} - \mu}{\frac{s}{\sqrt{n}}}

The parameters are:

  • \overline{X} is the sample mean.
  • \mu is the tested value.
  • s is the standard deviation.
  • n is the sample size.

From this, it is taken that if the sample size was increased with all other parameters remaining the same, the test statistic would decrease,  and the p-value would increase.

You can learn more about p-values at brainly.com/question/26454209

3 0
2 years ago
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