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Katen [24]
3 years ago
8

8) (-47) + 30

Mathematics
1 answer:
Lisa [10]3 years ago
4 0
8) -17
10) -20
12) 9
14) 23
16) 15
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-x^2=-36 I need help
Gennadij [26K]
You need to first make everything positive:
x^2=36
Then you need to get the square root of each side:
x=6 or -6

Hope this helps :)
4 0
3 years ago
During a scuba dive, Lainey descended to a point 20 feet below the ocean surface.She countined her descent at a rate of 20 feet
lorasvet [3.4K]

Answer:

20 + 20x \leq 100

Step-by-step explanation:

Let x be the number of minutes she can continue, since she's already 20 feet below the ocean surface and is diving at the rate of 20 ft/minute, her depth with respect to x would be

20 + 20x

But she doesn't want to reach more than 100 feet below the surface

20 + 20x \leq 100

4 0
2 years ago
4x=12+12<br>Find the value of x​
stepladder [879]

Answer:

\sf\longmapsto \: x = 6

Step-by-step explanation:

\sf\longmapsto \: 4x = 24

\sf\longmapsto \: x = 24 \div 4

\sf\longmapsto \: x = \: 6

4 0
2 years ago
Read 2 more answers
a ball is thrown straight up from the top of a 128 foot tall building with an initial speed of 32 feet per second. the height of
STatiana [176]
Factoring, you have
  h(t) = -16(t^2 -2 -8) = -16(t -4)(t +2)

The ball hits the ground when h(t) = 0, so
  0 = -16(t -4)(t +2)
  t = 4 or -2

The positive solution is the one of interest.
  It will take 4 seconds for the ball to hit the ground.

6 0
3 years ago
1. Cooking oil is sold in two sizes of cans.
iren2701 [21]

Answer:

Small can

Step-by-step explanation:

Price per liter for Small can = 2.20 /4 = 0.55

Price per liter for Large can = 3.24 / 6 = 0.54

0.55>0.54

small can > large can

I hope im right!!!

4 0
3 years ago
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