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Ray Of Light [21]
2 years ago
12

Select three angle measures that can represent the three angles of a triangle. Write the measures in Box A. 100 80 30 90 70 10

Mathematics
1 answer:
katen-ka-za [31]2 years ago
3 0

Answer:

some examples:

80, 30, 70

80, 10, 90

100, 70, 10

Step-by-step explanation:

angle measures must add to 180 degrees

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A guitarist sets a goal to practice 200 minutes each week. If he only is going to practice 5 days during the week, which of the
vodomira [7]

Answer:

40

Step-by-step explanation:

40x5=200

200 divided by 5 =40

5 0
3 years ago
Sally sells sea-shells by the seashore. After 6 days, she has made
nasty-shy [4]

Answer:

the right answer is$2.66

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3 years ago
Chicken Delight claims that 87% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 80 or
jeka57 [31]

Answer:

There is strong evidence that less than 87% of the orders are delivered in less than 10 minutes.

Decision rule: Reject the null hypothesis if (P-value < level of significance)

Test statistic z=-2.70

Decision: Reject the null hypothesis (0.003<0.010)

Step-by-step explanation:

In this question we have to test an hypothesis.

The null and alternative hypothesis are:

H_0: \pi\geq0.87\\\\H_a:\pi

The significance level is assumed to be 0.01.

The sample of size n=80 gives a proportion of p=61/80=0.7625.

The standard deviation is:

\sigma=\sqrt{\frac{\pi(1-\pi)}{N} }=\sqrt{\frac{0.87*0.13}{80} }=0.0376

The statistic z is then

z=\frac{p-\pi+0.5/N}{\sigma}=\frac{0.7625-0.87+0.5/80}{0.0376} } =\frac{-10125}{0.0376} =-2.70

The P-value is

P(z

The P-value (0.003) is smaller than the significance level (0.010), so the effect is significant. The null hypothesis is rejected.

There is strong evidence that less than 87% of the orders are delivered in less than 10 minutes.

Decision rule: Reject the null hypothesis if (P-value < level of significance)

Test statistic z=-2.70

Decision: Reject the null hypothesis (0.003<0.010)

6 0
3 years ago
A base of a triangle measures 10.7 meters. What is the measure of the corresponding midsegment of the triangle?
Alexxandr [17]

Answer:

C. 5.35

Step-by-step explanation:

Because the midsegment is half of the base

All you have to do is divide the 10.7 by 2

6 0
3 years ago
Read 2 more answers
Which of the expressions is rational? 25 + 2 7 − 2 64 + 45
Levart [38]

Answer:

All of the expressions

Step-by-step explanation:

A rational number is one that can be written as a ratio, or a number with a terminating decimal.

All of the expressions are whole numbers, so they are all rational.

4 0
3 years ago
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