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Tema [17]
3 years ago
6

3. What is the area of the triangle below?

Mathematics
1 answer:
creativ13 [48]3 years ago
8 0

Answer:

B 68 in I think

Step-by-step explanation:

hope this helpd

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Suppose the mean SAT verbal score is 525 with a standard deviation of 100, while the mean SAT math score is 575 with a standard
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Answer:

The mean of the combined math and verbal scores is 1100, while the standard deviation is 141.

Step-by-step explanation:

Normal variables

Normal variables have mean \mu and standard deviation \sigma

When we add normal variables, the combined mean is the sum of both means, and the standard deviation is the square root of the sum of both variances. The distribution is still normal.

In this question:

Verbal: \mu_{V} = 525, \sigma_{V} = 100.

Math: \mu_{M} = 575, \sigma_{M} = 100

Combined:

\mu = \mu_{V} + \mu_{M} = 525 + 575 = 1100

\sigma = \sqrt{\sigma_{V}^{2}+\sigma_{M}^{2}} = \sqrt{100^2 + 100^2} = 141

The mean of the combined math and verbal scores is 1100, while the standard deviation is 141.

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3 years ago
Is x=15 a function?​
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Answer:

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Step-by-step explanation:

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Anna35 [415]

Answer:

9-3x=20

Step-by-step explanation:

It is the wordplay

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3 years ago
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What is the sum? 7/3 + (-3/8)
stira [4]
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What do you know about expressions and equations? What are some examples of expressions and equations? Have you ever thought abo
aliina [53]

Answer:

Answer: An equations is a number, a variable, or a combination of numbers and variables and operational symbols. An equation is made up of two expressions connected by an equal sign.

Example Expression: 8x+5y-3x-5

Example Equation: 5x-4=x

Step-by-step explanation:

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3 years ago
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