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jeyben [28]
3 years ago
7

0.77777 as a fraction

Mathematics
1 answer:
Kazeer [188]3 years ago
6 0
0.77777 = 0.77777/1 = 7.7777/10 = 77.777/100 = 777.77/1000 = 7777.7/10000 =
77777/100000
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On a piece of paper, use a protractor to construct a triangle with angle measures of 50° and 70º.
Firlakuza [10]
Hello my Kings and Queens the answer would be 60 degrees because all angles of a triangle always add up to 180 degrees
7 0
3 years ago
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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

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

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

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4 0
3 years ago
if everything in a store is 20% off and the discounted price of an item is $18.00 what is the regular price?
EastWind [94]

Answer:

14.4 dollars

Step-by-step explanation:

If you buy an item at $18 dollars with a 20% discount, you will pay 18 - 3.6 = 14.4 dollars

8 0
3 years ago
Find the missing number + 8 = 4​
erik [133]

Answer:

-4

Step-by-step explanation:

5 0
3 years ago
The value of x and the value of y
egoroff_w [7]

Answer:

x= 60 y=50

Step-by-step explanation:

First to find x, all the degrees in a triangle add up to 180 degrees. So 50+70+x=180 which is also 120+x=180 which means x=60. Y is the exterior angle of x and a missing angle. Let's substitute the missing angle with the variable z. 60+50+z=180 which is 110+z=180 which means z is 70. So 180-x+z=y. 180-60+70=y which means y is equal to 50. Hope this helps!

7 0
3 years ago
Read 2 more answers
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