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Neko [114]
3 years ago
9

Please help! 15 Points!

Mathematics
1 answer:
kow [346]3 years ago
5 0

Answer:

6*10^2

Step-by-step explanation:

(2*10^-7) * (3*10^9)

Multiply the numbers   then add the exponents

2*3  * 10^(-7+9)

6 * 10 ^(2)

6*10^2

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Help me in this question
KATRIN_1 [288]
H = -5t^2 +5t + 10

a) t = 0, h = 10 at time 0 

b) h = (-5t  + 10) ( t  +  1) 

c) put 0 in for the height and set each factor = to 0 and solve each
0 = (-5t + 10) and 0 = (t + 1)
solve each t = 2 and t = -1, so t = 2 sec is your solution

d)  because a parabola is symmetric, the max will be half way between -1 and 2, at t = 1/2

h = -5(1/2)^2 +5(1/2) + 10
h = -5(1/4) + 5/2 +10
h = -5/4 + 5/2 + 10
h = -5/4 + 10/4 + 40/4
h = 45/4

5 0
3 years ago
Calculate 40cm as a percentage of 3.5m​
iragen [17]

Answer:

875%

Step-by-step explanation:

  1. 40cm÷100=.4m
  2. (3.5÷.4)*100%=
  3. (35÷4)*100%=
  4. 8.75*100%=
  5. 875%
  6. so 3.5m has 875%of 40cm

which means 875%*40cm is equal to 3.5

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4 years ago
26 - 32 Write these numbers from least to greatest. -12 7 -2 -50 10 61 -25​
andreev551 [17]

Answer: -50, -25, -12, -2, 7, 10, 61

Step-by-step explanation:

8 0
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Step-by-step explanation:

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