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Sauron [17]
2 years ago
5

1. Identify the slope of the line and explain how you found it.

Mathematics
1 answer:
siniylev [52]2 years ago
8 0

Answer:

the slope is -2/3

Step-by-step explanation:

rise over run

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Find the arc length shown in red.<br> Give your answer in terms of .<br> A<br> 10 cm
salantis [7]

Answer:

5π/2 cm

Step-by-step explanation:

Given,

Radius ( r ) = 10 cm

Since, the angle is 90, the length of the the arc is π r/ 4

π * 10 / 4

= 10π/4

= 5π/2

3 0
2 years ago
According to the Centers for Disease Control and Prevention (February 18, 2016), 1 in 3 American adults don’t get enough sleep.
Marizza181 [45]

Answer:

A) Option C: H0: μ ≥ 7; HA: μ < 7

B) test statistic = -1.75

C) Option C: 0.025 ≤ p-value < 0.05

D) Option C: Do not reject H0 since the p-value is greater than α.

E) Option A: There is insufficient evidence to suggest that Americans sleep less than the recommended 7 hours of sleep.

Step-by-step explanation:

We are given;

Population mean; μ = 7

Sample mean; x = 6.7

Standard deviation; s = 2.1

Sample size; n = 150

A) Defining the hypothesis, we have;

Null Hypothesis; H0: μ ≥ 7

Alternative hypothesis; HA: μ < 7

B) Formula for the test statistic is;

z = (x - μ)/(s/√n)

Plugging in the relevant values, we have;

z = (6.7 - 7)/(2.1/√150)

z = -0.3/0.1715

z = -1.75

C) Using online p-value from z-score calculator attached with; z = - 1.75 ; α = 0.01 and one tailed distribution, we have;

The P-Value = 0.040059

Thus,the most appropriate answer is;

Option C: 0.025 ≤ p-value < 0.05

D) P-value is greater than the significance level, thus we fail to reject the null hypothesis.

E) We will conclude that there is insufficient evidence to suggest that Americans sleep less than the recommended 7 hours of sleep.

8 0
3 years ago
Can someone help me with this math homework please!
blondinia [14]

Answer:

C

Step-by-step explanation:

y coordinates must be at the numerator, while x coordinates at the denominator

4 0
3 years ago
. A pack of baseball cards has 12 trading cards and 2 stickers. In a
erik [133]
Answer:
432 cards and 72 stickers
Explanation:
1 pack=12 cards + 2 stickers
So if we want 36 packs..
36 packs=433 cards + 72 stickers
We times everything by 36!
3 0
3 years ago
Identify the coefficient of -z
harina [27]

Answer:

-1

Step-by-step explanation:

Your welcome back to the inputs is

6 0
3 years ago
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