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EleoNora [17]
3 years ago
14

Does anybody know it part 2

Mathematics
1 answer:
makvit [3.9K]3 years ago
4 0

Answer:

x = 33

Step-by-step explanation:

(x + 13) + (4x + 2) = 180

x + 13 + 4x + 2 = 180

5x + 15 = 180

5x = 180 - 15

5x = 165

x = 165/5

x = 33

Check:

(x + 13) + (4x + 2) = 180

(33 + 13) + 4(33) + 2 = 180

46 + 132 + 2 = 180

46 + 134 = 180

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muminat

Answer:

43.5 meters

Step-by-step explanation:

Area of regular hexagon =

\frac{1}{2}  \times ap

in the problem you have a = 10 meters

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so if you apply the formula

you will have

area =( 1/2) × 10 × 8.7

area = 43.5 meters

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3 years ago
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80

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3 years ago
An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 280 engines
DENIUS [597]

Answer:

The value of the test statistic is t = -2.09

Step-by-step explanation:

The null hypothesis is:

H_{0} = 6.6

The alternate hypotesis is:

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Our test statistic is:

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

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3 years ago
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