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3 years ago

Floor tile costs $11 per square yard. how much will it cost to tile a bathroom that is 90 square feet?

1 answer:

3 0

To calculate for the equivalent price in units of per square feet, we need to convert the given units from per square yard to per square feet. We calculate as follows:

<span>$11 per square yard ( 1 yard per 3 feet )^2 = $0.14 per square feet

90 square feet (</span>$0.14 per square feet) = $12.22

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You hike 1.2 miles west from a trailhead and then receive a text from a friend. She

alexira [117]

Answer:

the answer is definitely 4

5 0

2 years ago

An SRS of 450 450 high school seniors gained an average of ¯ x = 20 x¯=20 points in their second attempt at the SAT Mathematics

maria [59]

Answer: (15.47, 24.53)

Step-by-step explanation:

We know that the confidence interval for population mean is given by :_

$\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}$

, where n= sample size.

$\sigma$ = standard deviation.

$\overline{x}$ = sample mean.

z*= Critical value.

Given : n= 450

$\overline{x}=20$

$\sigma=49$

Critical value for 95% confidence = z*=1.96 [From z-value table]

Then, the 95% confidence interval will be :-

$20\pm (1.96)\dfrac{49}{\sqrt{450}}$

$\approx 20\pm (1.96)(2.31)$

$\approx 20\pm 4.53$

$=(20-4.53,\ 20+4.53)=(15.47,\ 24.53)$

Hence, the 95% confidence interval for the mean change in score μ μ in the population of all high school seniors. : (15.47, 24.53)

3 0

3 years ago

Which of the following are written in point-slope

tino4ka555 [31]

If I get a thanks I’ll answer on a diff comment

7 0

3 years ago

Read 2 more answers

4 1/2 divided by 2 3/8

Yuki888 [10]

First you make them mixed numbers:
9/2 ÷ 19/8
Then you flip the second fraction around
9/2 ÷ 8/19
Then you change ÷ to ×
9/2 × 8/19
And then multiply across!
72/38 = 1 34/38 = 1 17/19 (the final answer)
Hope this helps!

3 0

3 years ago

If one of the angles of a triangle is 130 degree then the angle between the bisectors of the other two angles can be

Viefleur [7K]

Answer: D) 155

Step-by-step explanation:

let <A, <B,<C are three angles in a triangle.

sum of the three angles in a triangle is 180degree.

<A+<B+<C=180

130+<B+<C=180 since one angle is given

<B+<C =180-130

<B+<C=50

(<B+<C)/2=25----(1)after bisecting sum of the angles

required angle =180-25=155

d is correct answer

8 0

3 years ago