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3 years ago

Which line of reflection maps point K at (-2, 2) to K' at (2, -2)?

Mathematics

1 answer:

Murrr4er [49]3 years ago

6 0

Answer: The y-axis or line x=0.

Step-by-step explanation:

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fiasKO [112]

Answer:

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3 years ago

Why is it not possible to form a right triangle with the lengths 2, 4, and 7? *

puteri [66]

Answer:

No. The sum of 2 and 4 is less than 7.

Step-by-step explanation:

So, first, to create a triangle, the sum of two smallest sides have to be greater than the longest side, which is 2+4 = 6, and 6 is smaller than 7.

So, no, 2, 4, and 7 cannot create a triangle, to be exact a right triangle.

Hope this helps!!

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3 years ago

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Draw a figure in the coordinate plane with at least three of following properties: 6 vertices 1 pair of parallel sides At least

loris [4]

Answer:

Step-by-step explanation:

you have to draw it

5 0

3 years ago

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Use the standard normal distribution or the t-distribution to construct a 99% confidence interval for the population mean. Jus

vichka [17]

Answer:

(25.732,30.868)

Step-by-step explanation:

Given that in a random sample of 42 people, the mean body mass index (BMI) was 28.3 and the standard deviation was 6.09.

Since only sample std deviation is known we can use only t distribution

Std error = $\frac{s}{\sqrt{n} } =\frac{6.09}{\sqrt{42} } \\=0.9397$

$df = 42-1 =41$

t critical for 99% two tailed $= 2.733$

Margin of error $= 2.733*0.9397=2.568$

Confidence interval lower bound = $28.3-2.568=25.732$

Upper bound = $28.3+2.568=30.868$

3 0

3 years ago

Write 5.5% as a fraction in simplest form

worty [1.4K]

Answer:

11/200

Step-by-step explanation:

5.5% = 5.5/100 = 0.055

0.055 1000

———- X ———

1 1000

=55/1000

=11/200

4 0

3 years ago