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Makovka662 [10]
3 years ago
10

A battery was charged. When the changing began, it was 23 percent full. After 30 minutes of charging, the battery was 89 percent

full? How long did it take to fully charge in minutes?

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0
Attached the solution and work.

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Factor completely. y^2+6y+8
Hunter-Best [27]
(Y+4)(y+2) is this what it supposed to look like? Cause I don’t really remember.
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What is the value of x in the equation (2x + 1)1/3 + 3 = 6
OleMash [197]

Answer:

x = 4

Step-by-step explanation:

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PLEASE ANSWER THIS 30 POINTS BRAINLIEST WILL BE GIVEN PICTURE INCLUDED!!
den301095 [7]
The first step is to quickly factor each of the five equations... to do so, find the right factors of the 3rd given number so that they add up in an equal number to the second number... 14 = -7 • -2 and -9 = -7 + -2


a^2 - 9a + 14 = 0
(a - 7) (a - 2)

a - 7 = 0, a = 7
a - 2 = 0, a = 2

{2,7}



a^2 + 9a + 14 = 0
(a + 7) (a + 2)

a + 7 = 0, a = -7
a + 2 = 0, a = -2

{-2, -7}


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(a + 5) (a - 2)

a + 5 = 0, a = -5
a - 2 = 0, a = 2

{-5, 2}


a^2 - 5a - 14 = 0
(a - 7) (a + 2)
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5 0
3 years ago
Read 2 more answers
Y = -1<br> 4x + 3y = -19
lubasha [3.4K]
I got 4x-3=-19 then I got stuck

7 0
3 years ago
39an angle measures 76° less than the measure of a complementary angle. what is the measure of each angle?
torisob [31]

Answer:

14 ° and 76 °

Step-by-step explanation:

We have that two angles are complementary, if the sum of their amplitudes is 90 °.

The complementary angles need not be consecutive or have any point in common.

Alpha and Beta are complementary if:

Alpha + Beta = 90 °

In this case it would be:

X - 76 ° = 90 °

X = 90 ° - 76 °

X = 14 °

Which means that each angle measures 14 ° and 76 °

7 0
3 years ago
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