3 years ago

Help please...........

2 answers:

8 0

letter D should be correct

3 0

D is correct <3 hope it helped!

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sleet_krkn [62]

Answer:

x = ± 15

Step-by-step explanation:

Given f(x) = - 0.5x² and f(x) = - 112.5 , then equate right sides

- 0.5x² = - 112.5 ( divide both sides by - 0.5 )

x² = 225 ( take square root of both sides )

x = ± $\sqrt{225}$ = ± 15

7 0

2 years ago

alekssr [168]

Answer:

= 98.7 tons

Step-by-step explanation:

ratio = 3:1:15

amount of sand needed = (15/19)*125 / 3 + 1 +15 =19

7 0

3 years ago

Anna [14]

James is 10 years old right now.

6 0

3 years ago

irakobra [83]

1) 1/5x + 3=0

1/5x=-3

x=(-3)(5)=-15

2)6x-7=0

6x=7

x=7/6=1.17

3) -8/3x+9=0

-8/3x=-9

-8x=-27

x=27/8=3.375

6 0

3 years ago

CaHeK987 [17]

10⁶= 1 million= 1,000,000

10⁷=10 million= 10,000,000

5 0

3 years ago