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Andrej [43]
2 years ago
12

Daisy is remodeling her home. The rectangular floor in the living room is 18 feet long and 9

Mathematics
1 answer:
nydimaria [60]2 years ago
5 0

Answer:

$532 for both rooms.

208 for dining room. 324 for living room.

Step-by-step explanation:

Find out how much square foot is in both rooms by multiplying length and width. then multiply each rooms square foot .by 2. then add up the two.

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An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 110 engines
slava [35]

Answer:

we will fail to reject the null hypothesis and conclude that the mean pressure is not different from 4.7 psi

Step-by-step explanation:

Let's first define the hypothesis;

Null hypothesis: H0: μ = 4.7

Alternative hypothesis: Ha: μ ≠ 4.7

We have;

Sample size; n = 110

Sample mean; x¯ = 4.6

Variance: σ² = 0.64

Standard deviation; σ = √0.64 = 0.8

Formula for test statistic is;

z = (x¯ - μ)/(σ/√n)

z = (4.6 - 4.7)/(0.8/√110)

z = -0.1/0.0763

z = -1.31

From online p-value from z-score calculator attached, using; z = -1.31, two tailed hypothesis, significance value of 0.1, we have;

P-value = 0.190196

The p-value is greater than the significance value and thus we will fail to reject the null hypothesis and conclude that the mean pressure is not different from 4.7

σ μ

8 0
2 years ago
Find the bearing of the ship. Round to the nearest tenth of a degree if necessary.
adelina 88 [10]

9514 1404 393

Answer:

  117°

Step-by-step explanation:

We assume you want to report your bearing as an angle measured CW from North. For conventional angles greater than 90°, it will be ...

  450° -angle = 450° -333° = 117°

The bearing of the ship is 117°.

4 0
2 years ago
What is the simpest form of 69 over 30?
avanturin [10]
2.3 in decimal form
4 0
2 years ago
-HELP QUICK!!- What is the distance from P to Q? <br><br> A P E X
skad [1K]

Answer:

might be 7

Step-by-step explanation:

count the rise and run from Q to P. count up 3 and right 4.

5 0
2 years ago
A line has a slope of -2/3 and passes through the point (–3, 8). What is the equation of the line?
Lapatulllka [165]

Answer:

y=-2/3x+8

Step-by-step explanation:

Okay, so the formula to find slope is y=mx+b, so we would start off by writing that. M in the equation represents the slope and b represents the y-intercept.

y=mx+b

y=-2/3x+b

y=-2/3x+8

I

4 0
2 years ago
Read 2 more answers
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