SLOPE IN MATH PLEASE HELP I’LL MARK BRAINLIEST + A LOT OF POINTS

Mathematics

1 answer:

Fed [463]3 years ago

7 0

Answer:

-7/9

Step-by-step explanation:

here you go I hope it helps

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The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium fuel is a normally distribu

Elodia [21]

Answer:

a) Standard error = 0.5

b) 99% Confidence interval: (19.2125,21.7875)

Step-by-step explanation:

We are given the following in the question:

Population mean = 20.50 mpg

Sample standard deviation = 3.00 mpg

Sample size , n = 36

Standard Error =

$=\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{3}{\sqrt{36}} = 0.5$

99% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.01} = \pm 2.575$

$20.50 \pm 2.575(\displaystyle\frac{3}{\sqrt{36}})= 20.50 \pm 1.2875 = (19.2125,21.7875)$

4 0

2 years ago

There are a total of 64 students in a drama club and a yearbook club. The drama club has 14 more students than the yearbook club

yawa3891 [41]

Answer:

39 students in the drama club, 25 in the yearbook club.

Explanation:

X=number of students in the drama club
Y=number of students in the yearbook club

X+Y=64
X−14=y
Subtract the equations
X−X+Y+14=64−Y
Y+14=64−Y
Subtract 14, add Y
Y+Y+14−14=64−14−Y+Y
2Y=50
Divide by 2
Y=25
X+25=64
Subract 25
X=64−25
X=39

8 0

3 years ago

Explain the steps you would take to complete this conversion problem.

UNO [17]

In the picture are the steps on how to solve this conversion problem

Hope this helps and maker me brainless plzzzzz

The answer is
46100000
——————g
221