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Black_prince [1.1K]
3 years ago
9

Simplify the expression.

Mathematics
1 answer:
stich3 [128]3 years ago
5 0
((3.14 * (10^7)) * (1.3 * (10^(-3)))) / 0.2 = 204100
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Simplify (8-7i)(-6+i)
Mrac [35]

Answer:

50 i - 41

Step-by-step explanation:

Simplify the following:

(-7 i + 8) (i - 6)

(8 - 7 i) (i - 6) = (8) (-6) + (8) (i) + (-7 i) (-6) + (-7 i) (i):

-6×8 + 8 i - 6 (-7 i) - 7 i×i

-6×8 = -48:

-48 + 8 i - 7 i (-6) - 7 i×i

-7 (-6) = 42:

-48 + 8 i + 42 i - 7 i×i

-7 i×i = -7 i^2:

-48 + 8 i + 42 i + -7 i^2

i^2 = -1:

-48 + 8 i + 42 i - 7-1

-7 (-1) = 7:

-48 + 8 i + 42 i + 7

-48 + 8 i + 42 i + 7 = (8 i + 42 i) + (7 - 48) = -41 + 50 i:

Answer: 50 i - 41

6 0
2 years ago
Find NP from the Rectangle
antoniya [11.8K]

Answer:

9.16

Step-by-step explanation:

by using pythagorean theorem,

given that PQ=4 and NQ = 2×5 = 10

NP²= NQ²-PQ²

= 10²-4²

= 100-16

= 84

NP = √84 = 9.16

4 0
3 years ago
Can you do this its a slops
Cloud [144]

Answer:

1. 1/2, rise/run and since you rise one and run 2 it'll be 1/2

2. 7/0 = undefined automatically, there is no value(undefined) if there is no run

3. rise:   28 - 18         10             5

           _______ = _____ =  _____ = 5

run:         4 - 2             2             1  

4. 1, it rises 1 and runs 1

4 0
2 years ago
When leaving a town, a car accelerates from 30 kmh-1 to 60 kmh-1 in 5 s. Assuming the
aleksandr82 [10.1K]

Answer:

B .62.5 m

Step-by-step explanation:

convert Kmh-1 in to ms-1

30 Kmh-1 = (30×1000) ÷3600 = 8.3ms-1

60 Kmh-1 = (60×1000) ÷3600 = 16.6 ms-1

acceleration = (16.6 - 8.3) ÷ 5 = 1.66 ms-2

V^2 = U^2 +2aS

(16.6)^2 = (8.3)^2 + 2×1.66 ×S

S = 62.5 m

6 0
3 years ago
Devide 30% by 100 and remove the percent sign to convert From a percent to a decimal show me the solution
Marysya12 [62]

Answer:

Step-by-step explanation:

7 0
2 years ago
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