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4 years ago

Solve for x. Enter your answer in interval notation using grouping symbols. x^2 + 5x < -4

Mathematics

2 answers:

VladimirAG [237]4 years ago

7 0

Answer:

interval notation (-4,-1)

Step-by-step explanation:

x^2+5x<-4

bring "-4" to the left side

x^2+5x+4=0

*switch to "=" sign here to solve this using the quadratic formula

-b+- sqrt b^2-4ac/2a

substitute the values in the quad formula with the values in your inequality

−4<x<−1

convert this to interval notation by using the number at the beginning and end of the inequality

(-4,-1)

hope this helps, plz vote my ans the brainiest!

Bad White [126]4 years ago

4 0

Plebs^4-2= feck math

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3 years ago

In Mr. Shaw’s garden, 0.3 of the crops are cucumbers, 1/10 are peppers, and 3/5 are strawberries. What fraction of the crops are

Oxana [17]

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3 years ago

The mean of the following data is 509.

Ganezh [65]

If the mean value of the data set is 509. Then the mean absolute deviation (MAD) for the data set will be 51.5.

<h3>What is the mean absolute deviation?</h3>

It is the average distance between each data point and the mean.

The mean of the following data is 509.

{419, 450, 462, 499, 520, 521, 589, 612}

Then the mean absolute deviation (MAD) for the data set will be

$\rm MAD =\dfrac{1}{n}\sum_{i=1}^{n}\left|x_i - \mu \right|$

We have

μ = 509

n = 8

Then

$\rm MAD =\dfrac{1}{8} \times (|419 - 509| + |450- 509| + ..... + |612 - 509|) \\\\MAD = 51.5$

More about the mean absolute deviation link is given below.

brainly.com/question/10258446

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2 years ago

The equation of the line is 3y+2x=12 . what is the slope of the line perpendicular to this equation?

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3 years ago

Read 2 more answers

Solve for x: -7x = 49

ikadub [295]

Answer:

x=-7

Step-by-step explanation:

a negative times a negative equals a positive, and 7x7=49, so (-7)(-7)=49

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3 years ago

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