Solve equation by using the quadratic formula.[x^{2} + 4x = -4

a. x = -2

b. x = -4

c. x = -4, x = 4

d. x = 0, x = 4

Answers

Answer 1

Answer: ANSWER IS C because I looked it up

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Jamie mowed 7 lawns. He earned $10, $15, $12, $15, $8, and $15 for six lawns. How much did he earn the seventh time if the mean of the data is $12?And can you please provide the work? I've tried adding all and dividing by total which I got 75. I just don't know what to do on how to find the number that would give me 12 as the question asks.

Answers

He earned about $12.5 because I added all the numbers together and divided by 6 and got $12.5!

I hope this helped!! Brainliest? :) -Raven❤️

Casey travels from her house directly west to the bank and then directly north from the bank to the mall. She then travels home on the road connecting the mall and her house. What is her total distance traveled?

Answers

distance travel from house to bank=x
distance travel from bank to mall=y
distance travel from mall to house=√x²+y²

total distance=|x|+|y|+√x²+y²

Answer:

40 Miles is the answer

Step-by-step explanation:

What is the sum of 18 23/30+ 2/3

Answers

Answer:

See image

Step-by-step explanation:

If x2 = 40, what is the value of x?

Answers

if you mean 2x=40 x=20
but if you mean x^2=40 i think its x=80

You have to divided by 2 on both sides and you get x=20. Checking your answer you multiply 20 by 2 which is 40.

Ana and Ling are solving |3x + 14| = -6x.Is either of them correct?...............................
Explain your reasoning.

Answers

Answer:

No! Both are wrong!

Step-by-stepExplanation:

the value of absolute function, (|.|) is always positive

that means -6x always has to be positive

and for -6x to be positive x has to be negative

(since, two negatives make a positive)

therefore, the value of x to the equation will be a negative value and not a positive one.

Ana thinks both positive and negative values of x will be the solution, whereas Ling thinks negative value of x can't be a solution. So, they're both wrong.

ONLYnegativevalue of x will be the solution.

Jasmin's dog weighs 66 pounds. Her vet told her that a healthy weight for her dog would be less than or equal to pounds.Jasmin's dog can lose an average of 7.5 pounds every week. Write the solution to an inequality that describes all possible number of weeks x for which her dog can be at a healthy weight.