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Andreyy89
4 years ago
11

Simplify 5i × i × -2i = ??

Mathematics
2 answers:
7nadin3 [17]4 years ago
7 0
5 i x i x - 2 i = 10 i

Gwar [14]4 years ago
4 0
I = √-1
i² = -1
i³ = -√-1  =  -i
  
                 (5i) · (i) · (-2i)

             =  (5 · 1 · -2) i³

             =    -10 i³  =  10 i
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What is 14-2/9-2/5=​
Alenkasestr [34]

Answer:

The answer is 602/45

Step-by-step explanation:

Since this involves subtracting fraction, we must make sure each denominator  is alike, which involves find the LCD (least common denominator).

9, 5, and 1 (the number 14's denominator is 1) all have the LCD 45 in common.

Multiply 9 by 5, which multiplies 2 with 5, giving 10.

Multiply 5 by 9, which multiplies 2 by 9, giving 18.

Multiply 1 by 45, which multiplies 14 by 45, giving 630.

Now, you have an equation that looks like this:

(630/45) - (10/45) - (18/45)

Subtract 10 from 630, which gives 620, then subtract 18 from 620, giving 602.

Final answer: 602/45

5 0
3 years ago
you are given a fraction in the simplest form. The numerator is not zero. When you write the fraction as a decimal, it is a repe
Tems11 [23]

Answer:

Step-by-step explanation:Let - be a fraction in simplest form, b # 0, written

as a repeating decimal when in decimal form.

Since the only numbers which can be factors of the

denominators lead to a terminating decimal are 1, 2

and 5 (including rising to powers) and combinations

of them, it means that if the denominator has at

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Among the numbers from 1 to 10, the presence of

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3 0
3 years ago
Ben can do 50 sit-ups in 3 minutes. At that rate, how many sit-ups can he do in 12.5 minutes? What is Ben's unit rate for doing
Liula [17]

Answer:

Ben's unit rate is 1 sit-up per 0.06 seconds

The amount of sit-ups can he do in 12.5 minutes is 208

4 0
3 years ago
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jasenka [17]

the answer is true because if you have 3x2 it is the same as 3xx2


5 0
3 years ago
What are the solutions of the equation? x2- 16/25=0
OverLord2011 [107]

x² - 16/25 = 0

x² = 16/25

x = ±√(16/25) = ±4/5

Answer: x=4/5 and x=-4/5

4 0
4 years ago
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