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Delicious77 [7]
3 years ago
5

Without plotting these numbers, decide which inequalities are true. Check all that apply.

Mathematics
1 answer:
cricket20 [7]3 years ago
7 0

Answer: √7 = 2.6

1. 2.6 > 2 V

2. 2.6 > 7 X

3. 2.6 < 8 V

4. √8 = 2.8 2.8 < 2 X

5. 2.8 <8 V

Step-by-step explanation:

V: mean correct

X: mean wrong

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Nan is 20 year old. In 8 years,she will be twice as old as Clarisse.how old is clarisse now?
slega [8]

Answer:

6

Step-by-step explanation:

The equation for this problem would be c = (20 + 8) / 2 - 8. Add 20 and 8 to get 28, divide 28 by 2 to get 14, then subtract 8 to get 6.

8 0
2 years ago
The following function is probability mass function. -2 -1 0 1 2 1/8 2/8 2/8 2/8 1/8 Determine the mean, , and variance, , of th
Digiron [165]

Answer:

The mean of the random variable is 0.

The variance of the random variable is \frac{3}{2}

Step-by-step explanation:

We are given the following probability distribution:

P(X = -2) = \frac{1}{8}

P(X = -1) = \frac{2}{8}

P(X = 0) = \frac{2}{8}

P(X = 1) = \frac{2}{8}

P(X = 2) = \frac{1}{8}

Mean:

Sum of each value multiplied by its probabilities. So

E(X) = -2\frac{1}{8} -1\frac{2}{8} + 0\frac{2}{8} + 1\frac{2}{8} + 2\frac{1}{8} = \frac{-2 -1 0 + 1 + 2}{8} = \frac{0}{8} = 0

The mean of the random variable is 0.

Variance:

Sum of the difference squared between each value and the mean, multiplied by its probabilities. So

V(X) = \frac{1}{8}(-2-0)^2 +\frac{2}{8}(-1-0)^2 + \frac{2}{8}(0-0)^2 + \frac{2}{8}(1-0)^2 + \frac{1}{8}(2-0)^2 = \frac{4 + 2 + 0 + 2 + 4} = \frac{12}{8} = \frac{3}{2}

The variance of the random variable is \frac{3}{2}

5 0
3 years ago
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3 years ago
A triangle has an area of 64 yd and a base of 8 what is the height of the triangle?
xz_007 [3.2K]

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3 0
3 years ago
Triangle ABC is a right triangle. Point D is the midpoint of side AB and point E is the midpoint of side AC. The measure of angl
icang [17]
Iwould think its Corresponding angles are congruent
Triangle Sum Theorem
<span>Measure of angle AED is 28°


I hope I helped


Brainliest would be appreciated



Have a great day!</span>
3 0
3 years ago
Read 2 more answers
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