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3 years ago

7

The area of a rectangular wall of a barn is 96 square feet. Its length is 10 feet longer than the width. Find the length and wid

th of the wall of the barn

1 answer:

Bad White [126]3 years ago

4 0

(x)(10+x)=96
$10x + {x}^{2} = 96$
${x}^{2} + 10x - 96 = 0$
(x-6)(x+16)=0

x=6,-16

negative can't be an answer this the answer is 6+10= 16 ft

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Answer:

7x ≥ 8y

Step-by-step explanation:

The first hen laid 7 eggs per week for x weeks. 7x

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3 years ago

ivann1987 [24]

9514 1404 393

Answer:

large: 55 lb
small: 30 lb

Step-by-step explanation:

Let x and y represent the weights of the large and small boxes, respectively. The problem statement gives rise to the system of equations ...

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We can subtract 50 times the first equation from the second to find the weight of a large box.

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3 years ago

Factor the polynomial by grouping. 12x^x+x−13

tekilochka [14]

Answer:

(x -1)(12x +13)

Step-by-step explanation:

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3 years ago

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Viefleur [7K]

Answer:

The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.2087, 0.2507).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

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The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.2087, 0.2507).

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3 years ago