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LuckyWell [14K]
2 years ago
12

What is the interval notation for all real numbers?

Mathematics
1 answer:
ankoles [38]2 years ago
4 0

Answer:

15 15 17 17 19 30

Step-by-step explanation:

to ne and to 69 04 16 97 50 27

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2u^2 + v when u=3 and v=7
Mariana [72]

Answer: 25

Step-by-step explanation:

There are two variables which is u and v and is given that u is 3 and v is 7  so input that into the expression and solve.

2(3)^2 + 7      Solve the exponent first

2(9) + 7      Now multiply then add

18 + 7 = 25

5 0
3 years ago
The monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical, normal distribution. Th
e-lub [12.9K]

Answer:

95% of monthly food expenditures are between $110 and $190.

Step-by-step explanation:

Given : The monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical, normal distribution. The sample mean is $150 and the standard deviation is $20.

To find : Using the Empirical rule, about 95% of the monthly food expenditures are between which of the following two amounts?

Solution :

At 95% of the data is between two standard deviation to left and right of the mean is given by,

To the left side, \bar{x}-2\sigma

To the right side, \bar{x}+2\sigma

We have given,

The sample mean \bar{x}=\$150

The standard deviation \sigma=\$20

Substitute in the formula,

\bar{x}-2\sigma

=150-2(20)

=150-40

=110

\bar{x}+2\sigma

=150+2(20)

=150+40

=190

Therefore, 95% of monthly food expenditures are between $110 and $190.

6 0
3 years ago
(x1/2y)^4 help me please I need an A
vodka [1.7K]

Answer:

this is simplify 1/16 x4 y4

4 0
2 years ago
Linda contructs a triangle with one side 5 inches long and another side 7 inches long.Which is NOT a possible legth for the thir
ladessa [460]
D) 12 would NOT be a possible length for the third side because the sum of the 2 shorter legs should be greater than the longest leg.
8 0
3 years ago
Select the equivalent expression<br><br> y^-2 =
kumpel [21]

Answer:

=x^-2

Step-by-step explanation:

7 0
2 years ago
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