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3 years ago

Find X to solve to problem and find all the angles

Mathematics

1 answer:

sesenic [268]3 years ago

8 0

Answer:

Step-by-step explanation:

x + x + 65 °+ 25° = 180° ( being sum of angles of triangle )

2x + 90° = 180°

2x = 90°

x = 45

now

<A = 45°

< B = x + 65° = 45 °+ 65 °= 110°

< C = 25°

Hope it helps :)

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The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week.

Zigmanuir [339]

Answer:

Hence,

Test statistic $X^{2}$ = 9.269.

p value = 0.148

Sunday= 15.23%, Monday= 12.62%, Tuesday= 13.10%, Wednesday=11.67%,

Thursday= 13.10%, Friday= 16.19%, Saturday= 18.09%.

Step-by-step explanation:

relative observed Expected Chi square

Category frequency(p) $O_{i}$ Ei=total*p $(O-E)^{2}$ $R^{2}_{i} =(O_{i} -E_{i} )^{2} /E_{i}$

1 0.142857143 64.0 60.00 16.00 0.267

2 0.142857143 53.0 60.00 49.00 0.817

3 0.142857143 55.0 60.00 25.00 0.417

4 0.142857143 49.0 60.00 121.00 2.017

5 0.142857143 55.0 60.00 25.00 0.417

6 0.142857143 68.0 60.00 64.00 1.067

7 0.142857143 76.0 60.00 256.00 4.267

Total 1.000 420 420 556 9.269

Test statistic $X^{2}$ = 9.269.

p value = 0.148 from excel: chidist(9.269,6)

Percentage %= Frequency of traffic occur on category x 100 / Total number of frequency given.

Category Percentage%

Sunday 15.23%

Monday 12.62%

Tuesday 13.10%

Wednesday 11.67%

Thursday 13.10%

Friday 16.19%

Saturday 18.09%

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3 years ago

What is the correct classification for the triangle shown below ? One measurement is an acute angle of 68° and another acute ang

Rom4ik [11]

Any triangle with a right angle in it is a right triangle. The 3rd selection is appropriate.

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4 years ago

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Trevor is having trouble understanding how the degree of a nonzero constant is 0. Use the expression 3x^0 to help explain this c

dem82 [27]

Answer:

The answer is B

Step-by-step explanation:

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3 years ago

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WITCHER [35]

Answer: 7

Step-by-step explanation:

They are alternate interior angle

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3 years ago

A spherical balloon is inflated with gas at the rate of 600 cubic centimeters per minute. How fast is the radius of the balloon

Ede4ka [16]

Considering the ballon to be spherical
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3 years ago