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forsale [732]
3 years ago
12

Simplify expression show step by step (-2i)(8i)

Mathematics
1 answer:
TiliK225 [7]3 years ago
5 0

Answer:

16

Step-by-step explanation:

<u>Remember that i^2 = -1 </u>

(-2i)(8i)

-16i^2

-16(-1)

16

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How to put -3x(4-6x) in distributive property
Rashid [163]

Answer:

-12x+18x²

Step-by-step explanation:

Given: -3x(4-6x)

Distributive property of multiplication under which a number is multiplied by the sum of two number, the first number can be distributed to both of those number.

∴  -3x(4-6x)

solving it by using distributive property

= (-3x\times 4)-(-3x\times 6x)

= -(12x) + 18x^{2}

Opening parenthesis

=  -12x+18x^{2}

Hence, -12x+18x^{2} is the result after using distributive property.

3 0
3 years ago
Which one of the following is an irrational number?
kondaur [170]

Answer:

sqrt(10)

Step-by-step explanation:

Since the second number ends and does not continue it wouldn't be the second one, and since the third is able to be predicted it wouldn't be the thrid one either and since the fourth one is 7 and is a whole number the only answer choice possible would be the first one.

7 0
3 years ago
I need help on this and please explain why is that the answer thank you -Alexa :)
Rzqust [24]
First, you need to find the total amount they discounted.

3.66 X 3= $10.97

Since they took off that much, you need to add that to the total cost, which was 62. 31

62.31 + 10.97= $73.29

Finally, to find how much each individual shirt cost, you divided it by 3.

73.29 / 3= $24. 43

The answer is C

4 0
3 years ago
Read 2 more answers
What is the volume of a cylinder with<br>a radius of 6 m and a height of 9 cm?<br>​
forsale [732]

Answer:

1,017.876

i hope this helpes

7 0
3 years ago
Find the product by using box method. (x+2)(x-4) show work please
LenaWriter [7]
Attached is your solution: simply set up the box as shown, then find the product of each in individual square in the box. The solution is the sum of the products... Note that when multiplying two binomials, you'll have like terms on one diagonal.

Hope this helps.. let me know if you have questions.

3 0
3 years ago
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