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2 years ago

Can anyone help me with this problem?

Mathematics

1 answer:

maria [59]2 years ago

4 0

So Angle x is actually the same as angle BCA

So what you have to do is get that first

41+102+x=180

x=37

That is due to BAC and BCA being AIA (alternate interior angles)

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1. A pair of designer sneakers was purchased for $120. Since they were purchased, their price has increased by 15%. What is the

SCORPION-xisa [38]

Answer:

138$

Step-by-step explanation:

120$. Increased by 15%.

Since 15% equals to 0.15, you multiply 0.15 by the price.

0.15*120=18.

Then you ADD the 15%.

120+18=138

The new price is now 138$

4 0

3 years ago

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Ms. Scarlet is roasting 4 chickens . Each chicken needs 1/2 cups of butter one stick of butter is one cup how many sticks of but

belka [17]

Answer:

2 sticks

Step-by-step explanation:

4 chickens times 1/2 cups each

will give you 4/2

4/2 is 2

hence, the answer

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3 years ago

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A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds. Find the te

vredina [299]

Answer:

b. 2.333

Step-by-step explanation:

Test if the mean transaction time exceeds 60 seconds.

At the null hypothesis, we test if the mean transaction time is of 60 seconds, that is:

$H_0: \mu = 60$

At the alternate hypothesis, we test if it exceeds, that is:

$H_1: \mu > 60$

The test statistic is:

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

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, s is the standard deviation of the sample and n is the size of the sample.

60 is tested at the null hypothesis:

This means that $\mu = 60$

A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds.

This means that $n = 16, X = 67, s = 12$

Value of the test statistic:

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

$t = \frac{67 - 60}{\frac{12}{\sqrt{16}}}$

$t = \frac{7}{3}$

$t = 2.333$

Thus, the correct answer is given by option b.

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2 years ago

The length of a ribbon is 3/4 meters. Sun hi needs pieces measuring 1/3 meter. What are the greatest number of pieces measuring

Llana [10]

2, since 2x 1/3 is 2/3, which is less than 3/4.

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3 years ago

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Evaluate the expression when x=48 and y=3 x/8-y

Vlad1618 [11]

Answer:

$9\frac{3}{5}$

Step-by-step explanation:

$\frac{x}{8-y}=\frac{48}{8-3}=\frac{48}{5}=9\frac{3}{5}$

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2 years ago

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