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3 years ago

PLEASE HELP ME!! iv'e tried to do some, but i dont think it is right

Mathematics

1 answer:

Gnom [1K]3 years ago

3 0

For number 6 I don’t know. For number 7, it’s a right angle. For question 8, it’s a right angle because it is 90 degrees.

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What is the equation of the line with qn x-intercept of -1 and a y-intercept of 2?

Kipish [7]

Answer:

y = mx + b

mx = slope

b = y intercept

mx = 2/1

Rise 2, Run 1 = slope

y = 2/1x + b

b = (0,2)

y = 2/1x + 2

6 0

3 years ago

I’m another normally distributed test score is 80 and the standard deviations is 10. How common are values in the less than 60?

lord [1]

Answer:

The probability of obtaining a score less than 60 is 2.28%

It happens 2 out of 100 times.

Step-by-step explanation:

If the mean μ = 80 and the standard deviation σ = 10, then we need to find the probability that an X value is less than 60.

Then we find

$P(X$

To find this probability we use the Z statistic.

$Z = \frac{X- \mu}{\sigma}$

$P(\frac{X- \mu}{\sigma}$

$P(Z$

This is the same as

$P(Z> 2)$

We look for this value in the table for the normal distribution of right queue and we have:

$P(X 2) = 0.02275$

The probability of obtaining a score less than 60 is 2.28%

It happens 2 out of 100 times.

6 0

3 years ago

5 more than the product of 23 and a number n

denis-greek [22]

Answer:

23n +5

Step-by-step explanation:

break down the expression into parts

5 more is +5

product is multiplication of 23 and n so 23n

then put it together

please give thanks :)

3 0

3 years ago

Read 2 more answers

Find the interior angle sum for the following polygon

LUCKY_DIMON [66]

140 is ur answer…
Im not really sure but I think this is it
Really hope this helps

6 0

3 years ago

WILL GIVE BRAINLIEST

suter [353]

Answer:

$\sqrt{65}$ is the closest to 8

Step-by-step explanation:

$\sqrt{61}=7.81 \\\sqrt{66}=8.12 \\\sqrt{65} =8.06\\\sqrt{62} =7.87$

4 0

3 years ago