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Alisiya [41]
3 years ago
7

Two linear functions are represented in different formats.

Mathematics
1 answer:
IRINA_888 [86]3 years ago
8 0

Answer:

i believe it is B i hope this is right :)

Step-by-step explanation:

i am taking the test rn lol

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Cara is a high school student. On average, there are 26 students per class at her school, with a standard deviation of 3 student
aliina [53]

Answer:

B. 97%

Step-by-step explanation:

20 students is -2 standard deviations away from the mean

35 is +3 standard deviations away from the mean

100 - 2.4 = 97.6

(2.4 is amount of data we are not using)

please refer to the standard deviation graph attached :)

8 0
2 years ago
A safety officer wants to prove that μ = the average speed of cars driven by a school is less than 25 mph. Suppose that a random
Akimi4 [234]

Answer:

t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70    

The degrees of freedom are given by:

df=n-1=14-1=13  

The p value for this case would be given by:

p_v =P(t_{(13)}  

Step-by-step explanation:

Information given

\bar X=24 represent the mean height for the sample  

s=2.2 represent the sample standard deviation

n=14 sample size  

\mu_o =25 represent the value that we want to test

t would represent the statistic

p_v represent the p value for the test

Hypothesis to verify

We want to cehck if the true mean is lees than 25 mph, the system of hypothesis would be:  

Null hypothesis:\mu \geq 25  

Alternative hypothesis:\mu < 25  

The statistic would be given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info given we got:

t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70    

The degrees of freedom are given by:

df=n-1=14-1=13  

The p value for this case would be given by:

p_v =P(t_{(13)}  

8 0
3 years ago
Find the sum of the measures of the interior angles of the polygon. 15-gon A. 2340° B. 2520° C. 2160° D. 1170°
Thepotemich [5.8K]

Answer:

2340

Step-by-step explanation:

Formulae for sum of interior angles is 180(n-2)

Whereby n=number of sides

180(15 - 2) \\ 180(13) \\  = 2340degrees

8 0
4 years ago
I need to know how to do this step my step and the answer
MissTica
You can use the calculator or 0^2 is 0 x -3 =0 +7 (0) -4 =-4
5 0
3 years ago
Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a radius of 4 feet and
olasank [31]

Answer:

70%

Step-by-step explanation:

Volume of container A

50.27 * 17 = 854.6cm^3

Volume of container B

113.1 * 11 = 1244.1 cm^3

percent of Container B that is full after the pumping is complete

=

\frac{854.6}{1244.1}  \times 100

= 68.69%

6 0
3 years ago
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