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KIM [24]
3 years ago
10

Hi! Can you please help me with this question? If you can please show the steps on how you got the answer. There is a picture to

go with it. Thank you!
1. The area of the rectangle is 51 inches squared. Write an equation then solve for x.

Mathematics
1 answer:
Ulleksa [173]3 years ago
6 0

Answer:

(2x+5)in x 3 in =51 in^2

Step-by-step explanation:

First, divide both sides by 3: (2x+5)/3 = 51/3-->2x+5=17

Then, subtract both sides by 5: 2x+5-5 = 17-5-->2x=12

Finally, divide both sides by 2: 2x/2 = 12/2 -->x=6

So, the answer is x=6.

Good luck and I hope this helps!


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A pair of jeans is on sale for 20% off of the regular price of $42. What is the sale price of the jeans
photoshop1234 [79]

Answer:

$33.60

Step-by-step explanation:

Since 20 percent is off, you only need to pay for 80% of the jeans. Therefore, you do 8/10 x 42 = 33.6

8 0
3 years ago
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In a contest, each finalist must answer 4 questions correctly. Each question is worth twice as much as the question before it. T
lutik1710 [3]
The answer is 250 points, to find this just divide by 2 three times.
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4 years ago
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What is the set of all solutions to the equation \sqrt{x + 2}= {-x} x+2 ​ =−xsquare root of, x, plus, 2, end square root, equals
NARA [144]

Answer:

x = 2 or x = -1

Step-by-step explanation:

Given

\sqrt{x + 2}= {-x}

Required

Find the possible values fo x

\sqrt{x + 2}= {-x}

Square both sides

( \sqrt{x + 2})^2= ({-x})^2

x + 2 = x^2

Equate to 0

x^2 - x - 2 = 0

Expand

x^2 + x -2x - 2 = 0

Factorize:

x(x + 1) - 2(x + 1) = 0

(x -2)(x +1) = 0

Split:

x - 2 = 0 or x + 1 = 0

x = 2 + 0 or x = 0-1

x = 2 or x = -1

3 0
3 years ago
Computing a two-independent sample t-test is appropriate when?
Luden [163]

Answer:

D) all of the above

Step-by-step explanation:

The two-independent sample t-test is used to evaluate the differences in the means of two independent groups to ascertain if there is indeed a difference in the population means. So, the population variance is unknown before this test is done. To carry out this type of test, the researcher should ensure that there are no similarities between participants in the two groups so that there would be no influences between the groups. The participants in the research should be randomly selected.

The participants are observed one time to ensure that the same conditions hold for both groups and that there is a balance in the research blueprint.

7 0
3 years ago
V plus 9 over 3 = 8 it’s suppose to be two step equations
Evgen [1.6K]

Answer:

v= 15

Step-by-step explanation:

all work is shown and pictured

6 0
4 years ago
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