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Dmitry_Shevchenko [17]
3 years ago
15

Marisol is making a rectangular wooden frame. she wants the length of the frame to be no more than 12 inches. she has less than

30 inches of wood to use. select the system of inequalities that represents the possible length, l, and the possible width, w, that her frame could have.
a. l ��� 12. 2l 2w < 30
b. l > 12. 2l 2w < 30
c. l ��� 12. l w < 30
d. l > 12. l w < 30
Mathematics
1 answer:
Blababa [14]3 years ago
4 0
B is your answer
The perimeter of a rectangle is2l + 2wThis has to be less than 30 because she has less than 30 inches of wood altogether.
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A standard American Eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. Assuming the weights of sta
nalin [4]

Answer:

Option 2 - Approximately 24–36 pounds

Step-by-step explanation:

Given : A standard American Eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. Assuming the weights of standard Eskimo dogs are normally distributed.

To find : What range of weights would 99.7% of the dogs have?

Solution :

The range of 99.7% will lie between the mean ± 3 standard deviations.

We have given,

Mean weight of Eskimo dogs is \mu=30

Standard deviation of Eskimo dogs is \sigma=2

The range of weights would 99.7% of the dogs have,

R=\mu\pm3\sigma

R=30\pm3(2)

R=30\pm6

R=30+6,30-6

R=36,24

Therefore, The range is approximately, 24 - 36 pounds.

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5 0
3 years ago
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Nadya [2.5K]

Answer:

\text{D. }b^2-4ac>0

Step-by-step explanation:

The equation b^2-4ac represents the discriminant of a quadratic. It is the part taken from under the radical in the quadratic formula.

For any quadratic:

  • If the discriminant is positive, or greater than 0, the quadratic has two solutions
  • If the discriminant is equal to 0, the quadratic has one distinct real solution (the solution is repeated).
  • If the discriminant is negative, or less than 0, the quadratic has zero solutions

In the graph, we see that the equation intersects the x-axis at two distinct points. Therefore, the quadratic has two solutions and the discriminant must be positive. Thus, we have b^2-4ac>0.

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2 years ago
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Answer:

3 3

Step-by-step explanation:

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1 year ago
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Here, Alicia is wrong because on evaluating 3 ^{1.4} we get 4.65554 which is of course less than 6. Zara's calculation could be;

3 ^{1.4}  \\  \\ 3 ^{ \frac{7}{5} }  \\  \\  \sqrt[5]{3 ^{7} }   \\  \\ 3 \sqrt[5]{3 ^{2} }  \\  \\ 3 \sqrt[5]{9}  \\  \\  = 4.6554

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6 0
2 years ago
PLEASE PLEASE HELP! Ill give brainliest!! will report useless answers (eg links)
Soloha48 [4]
F (-3) = -3(-3) -4
F(-3) = 9 - 4
F(-3) = 5
(5,-3) is the ordered pair
5 0
2 years ago
Read 2 more answers
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