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sammy [17]
3 years ago
10

Does anyone know how to this cause I need to know how to do it.

Mathematics
2 answers:
ANEK [815]3 years ago
6 0
Those lines mean absolute value which always positive.
|-3| + 7 could be re-written as 3 + 7
|-3 + 7| could be re-written as 3 + 7
JulsSmile [24]3 years ago
5 0

Answer:

(a)= 10

(b)=4

Step-by-step explanation:

the lines are absolute value, so anything in the lines will be positive

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How many quarts are there in 12 gallons and 3 quarts? enter the number only. Do not include units
lidiya [134]

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51

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Please help me <br> can u explain how to do this
Ghella [55]

Answer:

x=41

Step-by-step explanation:

so since this is a right triangle you can use the Pythagorean Theorem to find the missing side. the two sides you know are 'a' and 'b' and the missing side is 'c'. the theorem says that:

a^2+b^2=c^2

so:

9^2 +40^2=c^2

solve for the exponents:

81 +1600=c^2

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and now, since 1681 is the missing side's length squared, we must find the square root of 1681, which is 41

hope this helps :)

7 0
3 years ago
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What is the area of the shaded region below?<br> 7 m<br> 30 m<br> 7 m<br> 21 m
Rama09 [41]

Answer:

322.28

A

Step-by-step explanation:

Area of the rectangle

L = 30

W = 21

Area = 30 * 21

Area = 630

Area of the circles

Radius = 7 m

Area = pi r^2

Area = 3.14 * 7^2

Area = 153.86 m^2

Area of both circles = 307.72

Area of the Shaded Region

Area of shaded region = area of the rectangle - area of 2 circles.

Area of Shaded Region = 630 - 307.72

Area of Shaded Region = 322.28

5 0
3 years ago
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