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IrinaK [193]
3 years ago
15

I need a full explanation on -(i^2) I know it equals 1, but how?

Mathematics
1 answer:
Oksanka [162]3 years ago
7 0
I^2 is negative 1, but I see you have a negative sign there. So it is -(-1), which is 1.
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A rug is shaped like a rectangle whose perimeter is 276276 ftft. the length is 5 times as long as5 times as long as the width. f
ArbitrLikvidat [17]
Width = w

Length = 5w

Given,

Perimeter = 276 ft

5w * w = 276

w² = 55.2

--- w = 7.429670248402684 ≈ 7.43 ft

--- l = 5w = 5*7.43 = <span>37.14835124201342 </span>≈ 37.15 ft


4 0
3 years ago
You put the names of all the students in your class in a paper bag. There are 19 boys and 12 girls. If you draw a name at random
Andrei [34K]

Answer:

19/31

Step-by-step explanation:

12+19=31

there are 19 guys names out of a total of 31 names.

4 0
3 years ago
Given f(x) = 3 and g(x) = 5x + 7, find (f + g)(-8).
levacccp [35]

Answer:

-30

Step-by-step explanation:

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This is the sum of two functions both evaluated at x = -8.

4 0
3 years ago
Solution for the inequality 6x +9 ≤ 27
AlexFokin [52]

Answer:

6x + 9 = 27

       -9     -9

6x = 18           Now divide both sides by 6

/6      /6            so the answer is 3

Step-by-step explanation:

5 0
2 years ago
1a. Write the equation: You work during the summer mowing lawns. You charge 13
iragen [17]

Answer:

819÷13=63

Step-by-step explanation:

you divide 819 by 13 and you get 63

7 0
2 years ago
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