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3 years ago

If you were going to lay carpet in a rectangular room that had dimensions 10ft by 13ft, how much carpet would you need to buy?

Mathematics

2 answers:

frez [133]3 years ago

7 0

Answer:

130 ft of carpet

Step-by-step explanation:

irina1246 [14]3 years ago

4 0

130 ft. Length x Width = Area. With that in mind, all you need to do is multiply 10 by 13 to get the area of the rectangle. 10 x 13 = 130 feet.

Hope this helps!

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Describe how you would find the median for a set of data that has 35 values. How would this be different if there were 36 values

777dan777 [17]

Answer:

Step-by-step explanation:

the median for 35 values, you can cross the first one and last one until there is only one value left, with should be the 18ᵗʰ value

the median for 36 values, same thing, but after cross all, there will be 2 values left instead of 1, just find the mean between 2 values.

8 0

3 years ago

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According to the manufacturer of a backup UPS device, the normal output voltage is 120 volts. The sample of 40 measured voltage

anyanavicka [17]

Answer:

z = 1.83<1.96

null hypothesis is accepted

The sample is came from a population mean

Step-by-step explanation:

Step :-1

The sample of 40 measured voltage amounts from a unit have a mean of 123.59 volts and a standard deviation of 0.31 volts

given sample size n =40

mean of the sample ×⁻ = 123.59 volts

standard deviation of sample σ = 0.31 volts

Step2:-

Null hypothesis :-

the sample is from a population with a mean equal to 120 volts.

H₀ : μ =120

Alternative hypothesis:-

H₁ : μ ≠120

level of significance:- α =0.05

Step 3:-

The test statistic

$z = \frac{x_{-}-mean }{\frac{S.D}{\sqrt{n} } }$

substitute values and simplification

$z = \frac{123.59-120}{\frac{0.31}{\sqrt{40} } }$

on simplification we get the calculated value

z = 1.83

The tabulated value z =1.96 at 0.05 % level of significance

Conclusion:-

Calculated Z < The tabulated value z =1.96 at 0.05 % level of significance

so the null hypothesis is accepted

The sample is came from a population mean

4 0

3 years ago

Kendall scored 3 times as many points as Abdul scored in a basketball game.

jok3333 [9.3K]

Answer: 3p

Explanation: p is representative of the points scored by Abdul. If Kendall scored three times as many, then you’d multiply Abduls points (p) by three (3) so, 3p. If you’re finding out their points combined then you’d do
3p + p

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3 years ago

If a 5ft post casts an 8ft shadow at the same time that a nearby tree casts a 48ft shadow how tall is the tree

Masteriza [31]

Here we would use the idea that the post and its shadow form a triangle and the tree and its shadow form a triangle and the side lengths of these two triangles are of the same ratio, ie. if the height of the tree is given by h then:
5/8 = h/48
h = 48*(5/8)
h = 6*5 = 30
Thus the tree is 30 ft tall

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3 years ago

A dot plot titled Age of Eagles going from 7 to 12. 7 has 1 dot, 8 has 2 dots, 9 has 4 dots, 10 has 2 dots, 11 has 3 dots, 12 ha

Mrac [35]

Answer:

Step-by-step explanation:

8 0

4 years ago

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