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vovangra [49]
3 years ago
12

Find the measure of angle A. A 7x-1 12x 489

Mathematics
1 answer:
Degger [83]3 years ago
7 0

Answer:

48 degrees

Step-by-step explanation:

7X-1+12x+48=180

19x+47=180

19x=133

x=7

7(7)-1=A

49-1=A

48=A

A is 48 degrees

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Lucy’s parents built a swimming pool in the backyard. Use 3.14 for π.
Rus_ich [418]

Answer:

Distance around the pool = 162.8 feet

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Step-by-step explanation:

Distance around the swimming pool = Perimeter of the pool

Perimeter of the pool which is a composite figure will be,

= Circumference of the semicircle + Sum of three sides of the pool

= πr + 2×(length of the pool) + width of the pool

= 3.14×(10) + 2×40 + 20

= 62.8 + 80 + 20

= 162.8 ft

Area of the pool = Area of the semicircle + Area of the rectangular pool

                           = \frac{1}{2}(\pi)(r)^{2}+(\text{length}\times \text{Width})

                           = \frac{1}{2}(3.14)(10)^2+(40\times 20)

                           = 157 + 800

                           = 957 square feet

8 0
3 years ago
Evaluate the numerical expression of 27 + 5 × 6
sesenic [268]
You have to use PEMDAS, by multiplying before you add. So when you multiply 5*6, you get 30 and add the remaining 27 to get 57.
4 0
3 years ago
If each student gets 65 on the next test, which explains the measure of center that would be most affected?
boyakko [2]

Answer:

Their means will be most affected because this value will be an outlier

Step-by-step explanation

I took the test and 65 is off of the percentage list!

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3 years ago
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Solving for the missing variable
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Answer:

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Step-by-step explanation:

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