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3 years ago

NEED HELP FAST MARKING PEOPLE AS BRAINLIST

Mathematics

2 answers:

brilliants [131]2 years ago

8 0

Answer:

so i cant really see it but it looks as if the two triangles are right angles and are congruent.

Step-by-step explanation:

so i hope this helps a little if so mark as brainleist pls have a nice day

deff fn [24]3 years ago

5 0

Answer:

sss

Step-by-step explanation:

since the problem dosent give angles its most likes sss

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Over the last three evenings, Yoko received a total of 73 phone calls at the call center. The third evening, she received 3 time

stealth61 [152]

The first evening she received x calls.
The second evening she received 7 fewer calls than the first evening, so she received x-7 calls.
The third evening she received 3 times as many calls as the first evening, so she received 3x calls.
Over the three evenings she received 73 calls altogether.

$x+x-7+3x=73 \\
5x-7=73 \\
5x=73+7 \\
5x=80 \\
x=\frac{80}{5} \\
x=16 \Leftarrow \hbox{the first evening} \\ \\ \hbox{the second evening:} \\
x-7=16-7=9 \\ \\ \hbox{the third evening:} \\
3x=3 \times 16=48$

The first evening she received 16 calls, the second evening she received 9 calls, the third evening she received 48 calls.

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3 years ago

What is 7-1(5t-13)=-25

Llana [10]

Answer:

t = 11.

Step-by-step explanation:

7 -1(5t - 13) = -25.

Distribute the -1.

7 - 5t + 13 = -25

Combine like terms.

20 - 5t = -25

Subtract 20 from both sides.

-5t = -55

Divide by -5.

t = 11.

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3 years ago

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What is the measure of x?

expeople1 [14]

Answer:

Step-by-step explanation:

Use similar triangles and proportions to solve:

$\frac{4}{6}=\frac{10}{6+x}$ and cross multiply:

4(6 + x) = 60 and

24 + 4x = 60 and

4x = 36 so

x = 9

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3 years ago

Look at the following numbers: −2, −1, 0, 1 Which pair of numbers has a sum of zero?

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Answer:

-1, 1

Negative one and positive one total up with a sum of 0.

-2 + 0 is -2.

0 and 1 is 1.

0 and -1 is -1.

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3 years ago

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Suppose a city official conducts a hypothesis test to test the claim that the majority of voters oppose a proposed school tax. A

lidiya [134]

Answer:

The correct option is (B).

Step-by-step explanation:

The p-value is well-defined as per the probability, [under the null-hypothesis (H₀)], of attaining a result equivalent to or more extreme than what was the truly observed value of the test statistic.

In this case, we need to test the claim that the majority of voters oppose a proposed school tax.

The hypothesis can be defined as follows:

H₀: The proportion of voters opposing a proposed school tax is not a majority, i.e. p ≤ 0.50.

Hₐ: The proportion of voters opposing a proposed school tax is a majority, i.e. p > 0.50.

It is provided that the test statistic value and p-value are:

z = 1.23

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The probability, [under the null-hypothesis (H₀)], of attaining a result equivalent to or more extreme than what was the truly observed value of the test statistic is 0.1093.

The significance level of the test is:

α = 0.05

The p-value of the test is larger than the significance level of the test.

p-value = 0.1093 > α = 0.05

The null hypothesis will not be rejected.

Concluding that there is not enough evidence to support the claim.

Thus, the correct option is:

"If the null hypothesis is true, then the probability of getting a test statistic that is as or more extreme than the calculated test statistic of 1.23 is 0.1093. This result is not surprising (or considered unusual) and could easily happen by chance"

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3 years ago