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MAXImum [283]
3 years ago
13

Which calculation and answer show how to convert 3/12 to a decimal Plz help ASAP

Mathematics
1 answer:
DedPeter [7]3 years ago
6 0

Answer:

Its C

Step-by-step explanation:

It is C becuase when converting a fraction to a decimal, you just divide the numerator by the denominator

Basically solve the fraction

3/12=1/4

1/4 is a bencmark so right away you should know that should equal to 0.25 since its a quarter.

Or you can always look it like this

3 is the numerator

the “/“ between is basically ”divided by”

And the 12 is the denominator

Now read the equation in that order

3/12= 3 DIVIDED BY 12

There you go!

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A 90% confidence interval for u using the sample results X = 131.2, s=55 , and n= 50 Round your answer for the point estimate to
Ilya [14]

Answer:

131.2 ;

12.8 ;

(118.4, 144)

Step-by-step explanation:

Given :

X = 131.2, s=55 , and n= 50

Point estimate of the mean :

Since, sample size is large (n > 30) ; the sample mean = population mean according to the center limit theorem :

Margin of Error = Zcritical * s / sqrt(n)

Zcritical at 90% = 1.645

Margin of Error : 1.645 * (55 / sqrt(50))

Margin of Error : 1.645 * 7.7781745

Margin of Error = 12.795097

Margin of Error = 12.8

The confidence interval (C.I) :

C.I = x ± margin of error

C. I = 131.2 ± 12.8

(131.2 - 12.8) ; (131.2 + 12.8)

(118.4, 144)

8 0
3 years ago
Please explain what I am to do with this problem <br> 1x= -1; x+5=4
alexandr1967 [171]
1x=-1
that means whererever you see x, you replace it with -1

x is a placeholder for an unknown number

so repolace it

-1+5=4
5-1=4
true

3 0
3 years ago
The local bowling team won 13 out of 20 of their games this year.What percent of their games did the team win? im lazy rn
topjm [15]
65%

Because:
13/20 = 65/100 = 65%
8 0
3 years ago
The current altitude of the plane is 15400 feet above the ground and the plane's horizontal distance to the airport is 200000 mi
AVprozaik [17]

Answer:

0.441°

Step-by-step explanation:

tan = 1540/200000

tan = 0.0077

tan-1(0.0077) = 0.441

angle of depression is 0.0441°

3 0
4 years ago
Match the image on the left to the appropriate segment name on the right.
likoan [24]

Answer:

A. Altitude
B. Median
C. Midsegment
D. Angle Bisector
E. Perpendicular Bisector

Step-by-step explanation:

altitude is how tall from base to top, sides on either side do not need to be same

median ends at the top and equal sides on either side

midsegment is halfway across

angle bisector cuts an angle

perpendicular makes a 90 degree angle and equal sides on either side

7 0
2 years ago
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