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Ksenya-84 [330]
2 years ago
5

A puzzle is shown below. what is the area of the shaded portions of the puzzle?

Mathematics
1 answer:
kolezko [41]2 years ago
5 0

Answer:

it's a parallelogram

Step-by-step explanation:

May ot helpful

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A professor believes the students in a statistics class this term are more creative than most other students attending the unive
djverab [1.8K]

Answer:

Correct option: B

Step-by-step explanation:

The professor can perform a One-mean <em>t</em>-test to determine whether the average score of the students in his class is more than the average score of all the students attending university.

A <em>t</em>-test will be used instead of the <em>z</em>-test because the population standard deviation is not provided instead it is estimated by the sample standard deviation.

The hypothesis for this test can be defined as follows:

<em>H₀</em>: The average score of the students in his class is not more then the entire university, i.e. <em>μ ≤ 35</em>.

<em>Hₐ</em>: The average score of the students in his class is more then the entire university, i.e. <em>μ > 35</em>.

Given:

\bar x=40\\SE_{\bar x}=1.63

The test statistic is:

t=\frac{\bar x-\mu}{SE_{\bar x}}=\frac{40-35}{1.63}=3.0674\approx3.07

Thus, the correct option is (B).

4 0
2 years ago
a right triangle has legs of lengths 6 and 2, what is the length of the hypotenuse to the nearest tenth
PolarNik [594]

Answer:

6.3

Step-by-step explanation:

6^{2} + 2^{2} = x^{2}

40 = x^{2}

\sqrt{40}  = \sqrt{x^{2} }

x = 6.3

4 0
3 years ago
Read 2 more answers
Find the gradients for line A and B.<br><br> See pic attached
pogonyaev
Gradient is the difference between the y-axis and the x-axis
Gradient = y2-y1/x2-x1
Choose any two point making a triangle
Line B (0,8) (4,0)
This makes a triangle please go look at the graph once again! The the triangle should not have half squares but full!
Line A (5,14)(2,2)
Now plug in the variable
The difference between the Y and X
Line B 0-8/4-0
Line B gradient =-2
Line A 2-14/2-5
Line A gradient = +4

Finalized answer
Line B gradient = -2
Line A gradient = +4
8 0
2 years ago
Can someone help me to saved time on homework and plz solve 1 through 6
Debora [2.8K]

#1 = 54 yards

Step-by-step explanation:

1 foot= 3 yards. If you multiply 18 × 3 the answer is 54.

5 0
3 years ago
What is the image of (8,-1) after a reflection over the line y=x?
RSB [31]
(-8,1) im not sure but I think that this is the answe
7 0
2 years ago
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