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VARVARA [1.3K]
3 years ago
5

Find the value of this expresion if x=3 and y=-1

Mathematics
1 answer:
Strike441 [17]3 years ago
8 0
What’s the expression?
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How would one solve this
yaroslaw [1]
Sorry i really need points
4 0
3 years ago
Divide.
kakasveta [241]
C. 17 r 1 is the correct answer
6 0
3 years ago
Ik rp because the i forgot the sc
Stels [109]

Answer:

Step-by-step explanation:

This is a geometric mean problem...a ratio. The geometric mean is the height of the triangle, 6. To solve:

\frac{x}{6} =\frac{6}{3} and cross multiply to solve for x:

3x = 36 so

x = 12

6 0
1 year ago
Read 2 more answers
Use a t-distribution to answer this question. Assume the samples are random samples from distributions that are reasonably norma
Nataliya [291]

Answer:

The degrees of freedom is 11.

The proportion in a t-distribution less than -1.4 is 0.095.

Step-by-step explanation:

The complete question is:

Use a t-distribution to answer this question. Assume the samples are random samples from distributions that are reasonably normally distributed, and that a t-statistic will be used for inference about the difference in sample means. State the degrees of freedom used. Find the proportion in a t-distribution less than -1.4  if the samples have sizes 1 = 12 and n 2 = 12 . Enter the exact answer for the degrees of freedom and round your answer for the area to three decimal places. degrees of freedom = Enter your answer; degrees of freedom proportion = Enter your answer; proportion

Solution:

The information provided is:

n_{1}=n_{2}=12\\t-stat=-1.4

Compute the degrees of freedom as follows:

\text{df}=\text{Min}.(n_{1}-1,\ n_{2}-1)

   =\text{Min}.(12-1,\ 12-1)\\\\=\text{Min}.(11,\ 11)\\\\=11

Thus, the degrees of freedom is 11.

Compute the proportion in a t-distribution less than -1.4 as follows:

P(t_{df}

                      =P(t_{11}>1.4)\\\\=0.095

*Use a <em>t</em>-table.

Thus, the proportion in a t-distribution less than -1.4 is 0.095.

8 0
3 years ago
On a test of 80 items, Ariel got 59 correct. What percent were correct? a. 73. 75% c. 135. 59322% b. 1. 3559322% d. 0. 7375%.
Mila [183]
you divide 59% from 80 and is 7375=73
3 0
2 years ago
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