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2 years ago

I need the answer please. Hello

Mathematics

1 answer:

Gennadij [26K]2 years ago

4 0

Answer:

~ 15 %

Step-by-step explanation:

116.4 - 98.3 = 18.1

18.1 / 17.5 = 1.034 SD ABOVE the mean

this is a z-score of .8485 meaning 84.85 % have a score LESS than 116.4 so 15.15 % have a score higher

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Once you have created both sets of numbers, complete the following tasks. In each task, make sure to clearly label which set you

mezya [45]

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Step-by-step explanation:

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3 years ago

What is the volume of the pyrmid?

skad [1K]

Answer:

The volume of pyramid is 480cm³

Step-by-step explanation:

$\frac{1}{3} \times l \times w \times h$

l = 15cm

w = 6cm

h = 16cm

volume = (1/3)×15×6×16

= 480cm³

3 0

3 years ago

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When Noah goes bowling, his scores are normally distributed with a mean of 150 and a standard deviation of 12. What is the proba

Zarrin [17]

Answer:

The probability of his score being between 135 and 167 is 0.8151 or (0.8151*100=81.51%)

Step-by-step explanation:

Given that:

Mean = μ = 150

SD = σ = 12

Let x1 be the first data point and x2 the second data point

We have to find the z-scores for both data points

x1 = 135

x2 = 167

So,

$z_1 = \frac{x_1-mean}{SD}\\= \frac{135-150}{12}\\=\frac{-15}{12}\\=-1.25$

And

$z_2 = \frac{x_2-mean}{SD}\\z_2 =\frac{167-150}{12}\\=\frac{17}{12}\\= {1.416}$

We have to find area to the left of both points then their difference to find the probability.

So,

Area to the left of z1 = 0.1056

Area to the left of z2 = 0.9207

Probability to score between 135 and 167 = z2-z1 = 0.9027-0.1056 = 0.8151

Hence,

The probability of his score being between 135 and 167 is 0.8151 or (0.8151*100=81.51%)

3 0

3 years ago

ADD 5y to the product of a and b.

frozen [14]

Answer:

5y+a-b

Step-by-step explanation:

3 0

3 years ago

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If you wanted to make the graph of y = 3x + 1 steeper, which equation could you use?

icang [17]

Y = 3x + 1

y = mx + b

Where,
m = Rise/Run (Slope)
b = y-intercept

Changing the y intercept wouldn't change the steepness, but instead it would change where the graph would cross the y-axis (vertical axis).

The slope is the rise over run. So for the current graph you would go up 3 and then over 1. If you increased the number by any amount you would be going higher while going the same distance to the right. As a result the line would be getting steeper and steeper.

In other words the answer will be the one with a higher slope. If the slope is a fraction take our original slope and find a common denominator. Then compare.

I hope that this helps!

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4 years ago

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