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3241004551 [841]
3 years ago
8

The area of a square floor on a scale drawing is 25 square centimeters, and the scale drawing is 1 centimeter:2 ft. What is the

area of the actual floor? What is the ratio of the area in the drawing to the actual area?
Mathematics
1 answer:
N76 [4]3 years ago
6 0

Answer:

100 ft²

Step-by-step explanation:

1 cm : 2 ft

1 cm² : 4ft²

25 cm² : X ft²

1/4 = 25/X

X = 25×4 = 100 ft²

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Triangle X Y Z is shown. Angle X Y Z is 51 degrees and angle Y Z X is 76 degrees. The length of X Z is 2.6, the length of X Y is
Novay_Z [31]

Answer:

3.2 units

Step-by-step explanation:

Use the law of sines

z/sin 76 = 2.6/sin 51

z = 2.6 sin 76/sin 51 = 3.2

4 0
3 years ago
On a coordinate grid what is the distance from g 2,8 to h 2,5
Anika [276]
(2, 8), (2, 5)

Just subtract the numbers that aren't the same.

8 - 5 = 3

So the distance is 3.
5 0
3 years ago
Read 2 more answers
Jason went shopping he bought a watch and a pair of trainers for a total price of £53.55 this price includes 15% loyalty discoun
babymother [125]

Answer: price of the watch before the discount is £23.5825

Step-by-step explanation:

Let x represent the original price of the watch.

Jason went shopping he bought a watch and a pair of trainers for a total price of £53.55. This price includes 15% loyalty discount. The value of the discount is

15/100 × 53.55 = 8.0325

This means that the original cost of both items is

53.55 + 8.0325 = 61.5825

Before the discounts, the trainers were priced at £38. Therefore,

38 + x = 61.5825

x = 61.5825 - 38

x = 23.5825

4 0
3 years ago
Can someone PLEASE HELP!!!??
kolbaska11 [484]

Answer:

I think the answer is 155 ft^2. Hope this helps.

4 0
2 years ago
How does the increase in confidence level affect the interval width and margin of error?
meriva

Answer:

1. Three things influence the margin of error in a confidence interval estimate of a population mean: sample size, variability in the population, and confidence level. For each of these quantities separately, explain briefly what happens to the margin of error as that quantity increases.

Answer: As sample size increases, the margin of error decreases. As the variability in the population increases, the margin of error increases. As the confidence level increases, the margin of error increases. Incidentally, population variability is not something we can usually control, but more meticulous collection of data can reduce the variability in our measurements. The third of these—the relationship between confidence level and margin of error seems contradictory to many students because they are confusing accuracy (confidence level) and precision (margin of error). If you want to be surer of hitting a target with a spotlight, then you make your spotlight bigger.

8 0
2 years ago
Read 2 more answers
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