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erastova [34]
3 years ago
11

Please help what’s the answer!!!

Mathematics
1 answer:
Scrat [10]3 years ago
8 0

Answer:

-1

Step-by-step explanation:

Anything raised to  0 is 1

Multiply i 1 by  1

Simplify.

Rewrite i2 as −1

Move −1  to the left of i

Rewrite −1 i as −i

Factor out i2

Rewrite i2 as −1

Rewrite i2 as  −1

Rewrite i4 as 1

Multiply −1 by  1

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3 years ago
A certain westbound U.S. highway truck route near a river has a downhill grade of 9%. (a) Explain what a 9% downhill grade means
pashok25 [27]

Answer:

A) A 9% downhill grade means that the decrease in elevation of the road over the segment is 9% of the change in Horizontal distance over the same segment. In other words, for every 100 horizontal feet the road descends 9 feet and the road has a slope of 0.09 vertical feet per horizontal foot.

Step-by-step explanation:

A Certain westbound U.S highway truck route near a river has a downhill grade of 9%

A) A 9% downhill grade means that the decrease in elevation of the road over the segment is 9% of the change in Horizontal distance over the same segment. In other words, for every 100 horizontal feet the road descends 9 feet and the road has a slope of 0.09 vertical feet per horizontal foot.

In other to make things clear, lets assume

for X = 1 , y = 9% = 0.09

for y =  9 , x = 9 / 0.09 = 100

slope = y/x = 0.09 / 1 = 0.09

5 0
3 years ago
If (-2,3), 3x-2ky+4=0 find the value of k
ipn [44]
Answer: k = -1/3

Step-by-Step Explanation:

=> 3x - 2ky + 4 = 0
Value of ‘x’ = -2
Value of ‘y’ = 3

Substitute values of ‘x’ and ‘y’ :-
=> 3x - 2ky + 4 = 0
= 3(-2) - 2k(3) + 4 = 0
= -6 - 6k + 4 = 0
= -6k = 6 - 4
= -6k = 2
= k = 2/-6
=> k = -2/6 = -1/3

Therefore, k = -1/3
8 0
2 years ago
Write 0.624 as a percent and as a simplified fraction.
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5 0
3 years ago
If you flip a coin ten times, how many diffrent sequences of heads and tails are possible
nikdorinn [45]

Answer:

I'm pretty sure its D

Step-by-step explanation: Brainliest???

3 0
4 years ago
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