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Alborosie
2 years ago
6

Help me with math question

Mathematics
1 answer:
anyanavicka [17]2 years ago
6 0

Answer:

its 76.8

Step-by-step explanation:

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The area of rectangular kitchen tile is 6x^2-8x-30. The width is 2x-6.
mrs_skeptik [129]

Answer:

L=6x^2-4x+5

P=12x^2-4x-2

Step-by-step explanation:

A=WL

So, we know the area is 6x^2-8x-30 and the width is 2x-6

Substitute

(6x^2-8x-30)=(2x-6)(L)

L=(6x^2-8x-30)/(2x-6

Divide

L=6x^2-4x+5

P=2L+2W

Substitute

P=2(6x^2-4x+5)+2(2x-6)

P=12×^2-8x+10+4x-12

Simplify

P=12x^2-4x-2

7 0
2 years ago
Describe how to write the null and alternative hypotheses based on a claim. Provide at least one example to clarify your explana
Umnica [9.8K]

Answer:

Step-by-step explanation:

The null and alternative hypothesis are usually used in hypothesis testing to present the claim being tested as give in terms of the mean or proportion :

Given that the mean score of high school students is 10 ; using a sample of 50 students, a mean of 8 was obtained ; we could want to test the claim that the mean score is less than 10.

Here; population mean, μ = 10 ; the claim is now that, μ < 10 based on what was observed about the sample.

H0 : μ = 10

H0 : μ < 10

If we wanted to test If the mean was greater than 10 ; then the sign is reversed

H0 : μ = 10

H0 : μ > 10

If we wanted to test If the score is just different from the mean score stated ; (it may be less than or greater than)

H0 : μ = 10

H0 : μ ≠ 10

7 0
3 years ago
A child walks to the store 1/2 mile and back. what is the displacement?
Crazy boy [7]
The child's starting and finishing location is the same, therefore the displacementnis zero.
8 0
2 years ago
(will give brainliest!!)
Alex73 [517]
Hey there!

To figure out what "x" means, you can divide the numbers 126 and 14  . . .

126 divided by 14 = 9

9 x 14 = 126

9 = x

----------------
x = 9
----------------

Hope this helps you.
Have a great day!
4 0
3 years ago
Read 2 more answers
What number gives a result of −4 when 10 is subtracted from the quotient of the number and 4?
Arisa [49]

Answer:

6

Step-by-step explanation:

8 0
2 years ago
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