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SSSSS [86.1K]
3 years ago
10

I’m giving brainiest to whoever answer first and correct HURRYY and don’t just guess cause I’m going to know

Mathematics
1 answer:
anyanavicka [17]3 years ago
7 0

Answer:

Angle 12 is 45 degrees

Angle 13 is 90 degrees

Angle 14 is 45 degrees

Step-by-step explanation:

Angles 12 and 14 are acute angles

Angle 13 is neither acute or obtuse, therefore it is a right angle.

Obtuse= >90 degrees

Acute= <90 degrees

Right= 90 degrees

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What is that answer
masya89 [10]
Umm it's two obviously
5 0
4 years ago
you start skiing at an elevation 240 ft from the base of the hill and your elevation decreases 8 ft each minute. Your friend sta
andreev551 [17]

In this question, it is given that

You start skiing at an elevation 240 ft from the base of the hill and your elevation decreases 8 ft each minute. Your friend starts skiing 320 ft from the base of the hill and her elevation decreases 12 ft per minute.

Let the elevation is represented by h and time by tminutes .

So we have two equations here, which are

h = 240-8t, h=320-12t

And for same elevation, height is same. THat is

240-8t= 320-12t&#10;\\&#10;-8t+12t = 320-240&#10;\\&#10;4t = 80&#10;\\&#10;t= 20 minutes

THerefore,after 20 minutes, they are at same elevation .

3 0
4 years ago
Abe is making a scrapbook using 15 photos and 20 newspaper clippings. He wants all the
vaieri [72.5K]

Answer:

5

Step-by-step explanation:

The GCF of 15 and 20 is 5. I hope it helps.

6 0
4 years ago
The diameters of ball bearings are distributed normally. The mean diameter is 52 millimeters and the standard deviation is 4 mil
tatyana61 [14]

Answer:

0.1057

Step-by-step explanation:

We solve using z score formula.

z = (x-μ)/σ, where

x is the raw score = 57mm

μ is the population mean = 52mm

σ is the population standard deviation = 4mm

z = 57 - 52/4

z = 1.25

Probability value from Z-Table:

P(x<57) = 0.89435

P(x>57) = 1 - P(x<57)

1 - 0.89435

= 0.10565

Approximately = 0.1057

The probability that the diameter of a selected bearing is greater than 57 millimeters is 0.1057

6 0
3 years ago
Supplementary angles add to?<br><br>Advanced: Write an equation and solve for x in the diagram
Ray Of Light [21]

Supplementary angles add up to 180 degrees.

7x + 3x = 180 degrees.

Combine like terms.

10x = 180 degrees.

Divide both sides by 10

x = 18

4 0
3 years ago
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