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fenix001 [56]
3 years ago
10

PLEASE HURRY I'M BEING TIMED

Mathematics
1 answer:
kobusy [5.1K]3 years ago
6 0

Answer:

i think the answer is D my guy

Step-by-step explanation:

do you need the steps??

mark brainliest :p

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The electric company charges $0.06 per kilowatt hour of electricity used. Write a multiplication equation to find the number of
olganol [36]

Answer:

$0.06(x)=$45.84

Step-by-step explanation:

x= the number of hours used

x=764 hours

to get the 764 you divide 45.85/0.06 because you want to isolate the variable.

6 0
3 years ago
Solve using substitution<br><br> y=1/2x<br> x+4y=18
Aleks [24]

Answer:

The solution set is (6,3)

Step-by-step explanation:

Begin by multiplying equation 1 by 2. You'll see why in a moment

2y = 2*(1/2) x

2y = x

Substitute this value into equation 2.

2y + 4y = 18                  Combine like terms on the left

6y = 18                          Divide both sides by 6

6y/6 = 18/6                    Do the division

y = 3

To solve for x just use the top equation

y = 1/2x

3 = 1/2x                          Multiply by 2

3*2 = x

x = 6


7 0
3 years ago
How to solve it and why
RideAnS [48]
6.

4x^2 + 4 = 0

Divide both sides by 4

x^2 + 1 = 0

Use the quadratic formula since this cannot be factored.

x = (-b +- sqrt(b^2 - 4ac))/(2a)

x = +- sqrt(-4(1)(1))/2

x = +- sqrt(-4)/2

x = +- 2i/2

x = +- i

x = i or x = -i

Quicker solution:

If you have x^2 = number, then

x = +- sqrt(number)

Once you get to

x^2 + 1 = 0

Subtract 1 from both sides

x^2 = -1

Apply the quick method

x = +- sqrt(-1)

x = +- i

8.

2x^2 + 50 = 0

Divide both sides by 2

x^2 + 25 = 0

Subtract 25 from both sides

x^2 = -25

Apply quick method

x = +- sqrt(25)

x = +- 5i

x = 5i or x = -5i
3 0
3 years ago
In digging a​ hole, the construction crew records the depth of the hole relative to the ground level. The starting depth is zero
Bond [772]

I don't know how to solve this but im pretty sure the table is needed so you should atleast take a picture or just type it out

4 0
3 years ago
If the Atlanta Hawks free throw percentage is 72%, what is the probability that a player for the Hawks will make 2 free shots in
kifflom [539]

Answer:

The probability that a player for the Hawks will make 2 free shots in a row is 52/100 or 52%

Step-by-step explanation:

Please see the attached file for explanation

5 0
3 years ago
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