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ANEK [815]
3 years ago
12

Help me out please it’s homework

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
8 0

Answer:

4. +4 , -4

Step-by-step explanation:

I did number 4 and 6 instead.

4. x^{2} +32=16

do opposite of +32 to even out equation, so subtract 32 from 16, 16-32= -16

no u have x^2 = -16

to get rid of the exponent we must do the opposite of it, a square root, to both sides. so the square root of -16 is x= +4 or -4

Neko [114]3 years ago
4 0

Answer:

  1. 7
  2. 7 i
  3. 4
  4. 4 i

Note:

I'm sorry! I only figured out the first 4. And I'm sorry if those are incorrect as well!!!

But I do hope it helps a little!

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8 0
3 years ago
I need help with these
murzikaleks [220]
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4 0
3 years ago
Will give brainliest!!
77julia77 [94]

Answer: They can buy 16 coats.

Step-by-step explanation:

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4 0
3 years ago
The tires on your bicycle have a radius of 8 inches. How many rotations does each tire make when you travel 700 feet? Round your
Inessa [10]
"One rotation" would be the circumference of the wheel, which is

C = 2*pi*r, or  (here)  C = 2*pi*(8 inches) = 16*pi inches.

                                                                       1 ft
Convert this to feet:  16*pi inches  times  ---------------
                                                                   12 inches

Here "inches" cancels out and you are left with (4/3)pi ft.

So, one rotation of the wheel moves you and your bike forward (4/3)pi ft.

Divide this into 700 feet:

700 ft            2100 
------------- = --------- rotations = 525 rotations (answer)
(4/3) pi ft        4
7 0
4 years ago
How do i find f(-1)?
jonny [76]
F(-1) is the inverses of an equation so plug in y for x.
4 0
3 years ago
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