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3 years ago

Help me, help me plssss!!!!

Mathematics

1 answer:

julsineya [31]3 years ago

5 0

Since the slope is in the form y/x, and since, with each number in the y column, the value is subtracted by 4, the slope is -4, and the y intercept is (0,1).

So, the equation is y=-4x+1

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There are 222 single employees in job grade 2, and 3,927 married employees in job grade 2. Which is higher, the conditional rela

Softa [21]

Answer: Option C. Married and grade 2 (92.6%) is higher than Single and grade 2 (5.2%)

Solution:

Conditional relative frequency single employees in grade 2:

[(Single employees in job grade 2)/(Total employees in job grade 2)]*100%=

(222/4,239)*100%=0.052370842*100%=5.2370842% approximately 5.2%

Conditional relative frequency married employees in grade 2:

[(Married employees in job grade 2)/(Total employees in job grade 2)]*100%=

(3,927/4,239)*100%=0.926397735*100%=92.6397735% approximately 92.6%

92.6%>5.2%:

Married and grade 2 (92.6%) is higher than Single and grade 2 (5.2%)

4 0

3 years ago

Read 2 more answers

Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=10

Tanya [424]

Answer:

a) 0.7734

Step-by-step explanation:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 101, \sigma = 24$

(a) what proportion of children aged 13 to 15 years old have scores on this test above 83 ?

This is 1 subtracted by the pvalue of Z when X = 83. So

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

$Z = \frac{83 - 101}{24}$

$Z = -0.75$

$Z = -0.75$ has a pvalue of 0.2266

1 - 0.2266 = 0.7734

The answer is 0.7734

5 0

3 years ago

Suppose a triangle has sides 3, 4, and 6. Which of the following must be true? A. The triangle in question is a right triangle.

Morgarella [4.7K]

We can use the Pythagorean theorem:
c² = a² + b²
In this case:
6² = 3² + 4²
36 = 9 + 16
36 = 25 ( not correct )
This is not a right triangle.
Answer:
B ) The triangle in question is not a right triangle.

7 0

3 years ago

Read 2 more answers

Can someone please help how do you do it I don’t get it

disa [49]

Answer:

43.1

Step-by-step explanation:

Look at the picture! Double check my work but I am pretty sure I did it correctly.