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makkiz [27]
3 years ago
15

Subtract 8+7i from 4-16i​

Mathematics
2 answers:
White raven [17]3 years ago
8 0

Answer:

-4 -23i

Step-by-step explanation:

(4-16i) - (8+7i)

Distribute the minus sign

4-16i -8-7i

Combine like terms

4-8   -16i -7i

-4 -23i

Arada [10]3 years ago
6 0

Answer

12-9i  but in order its -9i+12

Step-by-step explanation:

since 8 and 4 are both positive add them up for 12 and 7i & -16 is -9i and the variable always comes first (a rule in math)

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A pair of $195 boots are discounted 40% If the boots are reduced in price by an additional 66 2/3% what will the discount price
UNO [17]
First, find the 40% discount.
40% of 195 is 78
195 x 0.40 = 78
Subtract that from 195
195 - 78 = 117
Now, find 66 2/3% of 117, since it is an additional reduction after the original discount.
2/3 = 0.667, so 66 2/3% is 66.667%
117 x 0.66667 = 78.00039
And subtract that from 117
117 - 78.00039 = 38.99961, which in dollars would be $38.99. (hundredths, etc. of a cent are usually just dropped; no rounding involved.)
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3 years ago
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THANK YOU (PLEASE HELP) <3 C: TYSMMMM PLZZZ Write an equation of a parabola that is wider than the parent function, reflects
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Answer:

y=-2x^2-4

Step-by-step explanation:

The parabola is wider than it's parent function, y = x^2. Therefore the coefficient, of x^2 (when you refer to quadratic equations it's a) should be greater than 1. Let's take 2.

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Final Equation: y=-2x^2-4

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