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Ratling [72]
3 years ago
15

The area of a rectangle is x² + 3x – 28 and the width is x + 7. What is the length of the

Mathematics
1 answer:
g100num [7]3 years ago
6 0

Answer:

X+4

Step-by-step explanation:

length times width = area

(X+7)(X-4) = x^2 +3x-28

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X - 14= -7.96<br>I couldnt find the correct answer lol I need help​
kotykmax [81]

Answer: x=6.4

Step-by-step explanation:

14 + (-7.96) = 6.40

6 0
3 years ago
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Mia invests $5,000 in an index fund. After 1 year, the fund's share price has increased by 8%. How much did Mia gain?
trasher [3.6K]

Answer: In the end, she has $5400 in total, so she must gain $400 on her investment.

Step-by-step explanation:

8% is 0.08 >>> add 1 to it = 1.08

5000*1.08 = 5400

or the other way to do this is 5000*0.08 = 400 and then 5000+400=5400

Hope this helps!

5 0
2 years ago
URGENT!!! I NEED THIS DONE TONIGHT PLEASE HELP!!!! I'LL MARK YOU AS BRAINLIST!!!
Juliette [100K]
My teacher told me this was -4,4 but i’m not sure
5 0
3 years ago
PLEASE HELP!!! WILL GIVE BRAINLIEST!!!!!
castortr0y [4]

Answer:

y = -1|x+1| +1

Step-by-step explanation:

The vertex form of an absolute value equation is y = a* |x-h| +k

a = -1 because it opens downwards with a slope of ± 1. Next it's vertex is at (-1,1). So replace h with -1 and k with one.


y = -1|x+1|+1

3 0
2 years ago
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Find the mean and the median of this data set: 9, 6, 5, 3, 28, 6, 4, 7
Ugo [173]

Answer:

The means is 8.5 The Median is 6

Step-by-step explanation:

1) to find the mean just Simply add all the numbers together and divided by how many numbers that is giving. (Because you are simply finding the average)

9+6+5+3+28+6+4+7=68

68 divided by 8 = 8.5

2) to find the median simply organize the numbers from least to greatest Like this: (3,4,5,6,6,7,9,28) Then keep crossing out from both sides teal you find the middle Number.

If there a odd amount of number the median will be one Number, if even 2 numbers ( if 2 numbers just add them both and divide by 2)

In This Case the Median is 6,6 but Its actually 6 Why (6+6=12) and (12/2=6) so your median is 6.

<em>Hopes This helps!</em>

8 0
3 years ago
Read 2 more answers
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