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goldenfox [79]
2 years ago
9

What is the solution set to the following equation?

Mathematics
1 answer:
motikmotik2 years ago
3 0

The solution set of the equation x^2 + 2x - 48 = 0 is x = -1 ± 7

<h3>How to determine the solution set of the equation?</h3>

The equation is given as:

x^2 + 2x - 48 = 0

A quadratic equation is represented as:

ax^2 + bx + c = 0

By comparing both equations, we have

a = 1, b = 2 and c = -48

The solution of the quadratic equation is then calculated using

x = (-b ± √(b^2 - 4ac))/2a

Substitute values for a, b and c in the above equation

x = (-2 ± √(2^2 - 4 * 1 * -48))/2 * 1

This gives

x = (-2 ± √196)/2

Evaluate the square root of 196

x = (-2 ± 14)/2

Divide through by 2

x = -1 ± 7

Hence, the solution set of the equation x^2 + 2x - 48 = 0 is x = -1 ± 7

Read more about quadratic equation at:

brainly.com/question/1214333

#SPJ1

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A candle on pauline’s dresser is 10 inches tall and burns at a rate of 0.75 inches per hour. how many hours will it take for the
Natalija [7]

Using a linear function, it is found that it will take 13 hours for the candle to burn down to a height of .25 inches.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

Considering the situation described, the y-intercept is of 10 while the slope is of -0.75, hence the height of the candle after t hours is given by:

h(t) = 10 - 0.75t

The height will be of 0.25 inches when h(t) = 0.25, hence:

0.25 = 10 - 0.75t

0.75t = 9.75

t = 9.75/0.75

t = 13 hours.

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

6 0
2 years ago
#3- Jennifer made a box plot to summarize this data. 124, 118, 129, 139, 133, 129, 142, 135, 122, 137. What is the inter quartil
Alecsey [184]

Answer:

so it is A I believe

Step-by-step explanation:

use the largest number minus  smallest number.

142-118=24

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4 years ago
Solve the following linear system of equations using substitution.
suter [353]

Answer:

(-1,-8)

Step-by-step explanation:

Did the assignment

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What is the area of this irregular shape 28in 7in 20in 30in 25in
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Answer:

b1=1b2=1h=7b1=1b2=6h=2b1=6b2=9h=2

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