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Whitepunk [10]
2 years ago
14

SOLVE FOR X AND THEN SOLVE FOR A

Mathematics
2 answers:
Licemer1 [7]2 years ago
4 0

Answer:

Step-by-step explanation:

A + B= 180°

(5x+20)+(9x-92)=180°

14x-72=180°

14x=252

x=18

A=5(18)+20

A=110

Nadusha1986 [10]2 years ago
4 0

Answer:

x = 18 , ∠ A = 110°

Step-by-step explanation:

∠ A and ∠ B are same- side interior angles and sum to 180° , that is

5x + 20 + 9x - 92 = 180

14x - 72 = 180 ( add 72 to both sides )

14x = 252 ( divide both sides by 14 )

x = 18

Then

∠ A = 5x + 20 = 5(18) + 20 = 90 + 20 = 110°

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SVEN [57.7K]

Answer:

540 degrees in a pentagon

4 + 8 + 6 + 4 + 5 = 27

540/27 = 20

4 X 20 = 80 degrees

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6 X 20 = 120 degrees

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5 X 20 = 100 degrees

7 0
3 years ago
Trucks in a delivery fleet travel a mean of 110 miles per day with a standard deviation of 38 miles per day. The mileage per day
Montano1993 [528]

Answer: 0.1824

Step-by-step explanation:

Given : The mileage per day is distributed normally with

Mean : \mu=110\text{ miles per day}

Standard deviation :  \sigma=38\text{ miles per day}

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Now, calculate the z-score :-

z=\dfrac{x-\mu}{\sigma}

For x= 132 miles per day.

z=\dfrac{132-110}{38}\approx0.58

For x= 159 miles per day.

z=\dfrac{159-110}{38}\approx1.29

Now by using standard normal distribution table, the  probability that a truck drives between 132 and 159 miles in a day will be :-

P(132

Hence, the probability that a truck drives between 132 and 159 miles in a day =0.1824

6 0
3 years ago
a shoes store in philadelphia pays 28.75 for a pair of shoes. the store marks the item up 35%. the local sales tax is 8%. how mu
ElenaW [278]

Answer:

$41.11

Step-by-step explanation:

28.75 + (28.75 x 0.35) + (28.75 x 0.08)

Please mark brainliest and have a nice day

Full answer is 41.1125

3 0
3 years ago
Let g represent the total number of hours Greg will travel on his trip across the country to attend his cousins wedding. The fir
koban [17]

Answer:

g-21

Step-by-step explanation:

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6 0
4 years ago
Read 2 more answers
Which exponential function is represented by the table?
Agata [3.3K]

Answer:

The answer is f(x) = 0.8(2^x)

Step-by-step explanation:

∵ f(x) = 0.8(2^x)

∵ x = -2 ⇒ ∴ f(-2) = 0.8(2^(-2)) = 0.2

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∴ The answer is f(x) = 0.8(2^x) ⇒ The fourth answer

8 0
3 years ago
Read 2 more answers
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