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Juliette [100K]
2 years ago
15

If you blank or blank by a number you must blank the equality sign

Mathematics
1 answer:
LenaWriter [7]2 years ago
5 0
If you add or subtract by a number you must add the equality sign
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PLZZ HELP!!!! ASAP PLZ!!!!<br> XTRA POINTS!!!
schepotkina [342]

Answer:

38.1 cm²

Step-by-step explanation:

area of full circle = π6² = 113.04 cm²

area of 150° segment = (150/360)(113.04) = 47.1 cm²

triangle base = sin 75° x 6 x 2 = 11.59

triangle height = cos 75° x 6 = 1.553

area of triangle = 1/2(11.59)(1.553) = 9 cm²

150° segment - triangle = 47.1 - 9 = 38.1 cm²

3 0
2 years ago
Use row operations to solve the system.
Aleks04 [339]

Answer:

x = 2, y = 7, z = 12

Step-by-step explanation:

x + y - z = -3 (1)

3x - y + z = 11 (2)

x - 4y + z = -14 (3)

add (1) and (2)

4x = 8 x = 2

add (1) and (3)

2x - 3y = -17

2(2) - 3y = -17

-3y = -17 - 4

-3y = -21

y = 7

Find z using any equation

x + y - z = -3

2 + 7 - z = -3

9 - z = -3

z = 12

3 0
3 years ago
Vector bought 15.6 pounds of paintballs. Ali together, the balls cost 35.99. About how much did the paintball cost per pound
Igoryamba

Answer:

<u>about $2.31 per pound</u>

Step-by-step explanation:

35.99/15.6 = 2.30705128205

2.31

Have a good day! :)

5 0
2 years ago
-9 - (-7) = ?<br><br> Someone please explain
castortr0y [4]
-9-(-7)
-9+7=-2
....:,.,
3 0
3 years ago
Read 2 more answers
How do yo find the area of a polygon?
Grace [21]
To find the area of a polygon you have to write the formula of it which is area= 1/2 x perimeter x apothem . hope this helps
8 0
2 years ago
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