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Levart [38]
3 years ago
11

Simplify the expression (-6i)(-4i) Please help and explain answer if you can!

Mathematics
2 answers:
Leno4ka [110]3 years ago
6 0
(-6i)(-4i) would be 24i
A negative times negative is positive. 6 times 4 is 24.

fiasKO [112]3 years ago
6 0

Answer: -24

Step-by-step explanation:

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Multiply. Write your answer as a fraction in simplest form. −1/4×(−4/3)=
Sophie [7]

Answer:

\frac{1}{3}

Step-by-step explanation:

Given

- \frac{1}{4} × - \frac{4}{3} ( negative times negative = positive )

= \frac{1}{4} × \frac{4}{3} ( cancel the 4 on the numerator and denominator )

= \frac{1}{3}

5 0
3 years ago
A riverboat travels 52 km downstream in 2 hours. It travels 66 km upstream in 3 hours. Find the speed of the boat and the speed
ElenaW [278]

Answer:

The speed of the boat is 24 kilometers per hour, and the speed of the stream is 2 kilometers per hour.

Step-by-step explanation:

Given that a riverboat travels 52 km downstream in 2 hours, and it travels 66 km upstream in 3 hours, the following calculations must be performed to find the speed of the boat and the speed of the stream:

Downstream = 52/2 = 26

Upstream = 66/3 = 22

Stream = 4/2 = 2

Therefore, the speed of the boat is 24 kilometers per hour, and the speed of the stream is 2 kilometers per hour.

8 0
3 years ago
Is 5/4 a solution to the problem: 3(+9)=4−7+7.
Alik [6]

Answer:

No the soultion is not equal to 1 1/4

The solution to the given question is either 6 3/4 or  4 /27

Step-by-step explanation:

Let

3(+9)=(4−7+7)x

27 = 4x

x= 27/4

x= 6 3/4  is the answer

or

Let

3(+9) x=(4−7+7)

27x = 4

x= 4/27

The plus sign inside the bracket indicates that 3 is multiplied with positive nine and -7 and +7 are cancelled and 4 is left behind.

If x is on the left side the answer will be 6 3/4  and if it is on the right side the answer is 4/27 .

In both cases the answer is not equal to 5/4 .

5/4 means 1 1/4 which is not equal to either 6 3/4 or 4/27

5 0
3 years ago
4.05 LC)
Goshia [24]

Answer:

r

Step-by-step explanation:

we know this because it is the only part of the graph that is moving downwards, meaning its decreasing. P is an example of increasing, Q is 'neutral' and s is also increasing.

5 0
3 years ago
Jimmy had some raisins. He ate 6 of them. Which expression shows how many raisins Jimmy has now? A. 6g B. g – 6 C. 6 ÷ g D. g +
Natalka [10]
The answer is (B). g-6 because your taking away 6 raisins.
8 0
3 years ago
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