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Romashka [77]
3 years ago
14

Noah wants to create a floor plan that is a scale drawing. The actual length of Wall C is 4 m. To represent Wall C, Noah draws a

segment 16 cm long. What scale is he using?
Mathematics
2 answers:
Viefleur [7K]3 years ago
8 0

Answer:

Step-by-step explanation: it’s 1 m because it’s equal to 4

FinnZ [79.3K]3 years ago
7 0

Answer:

Scale using for plan ⇒ 1 m = 4 cm

Step-by-step explanation:

Given:

Actual length of wall = 4 m

Segment of wall = 16 cm long

Find:

Scale using for plan

Computation:

Actual length of wall = Segment of wall

4 m = 16 cm

1 m = 16 / 4 cm

1 m = 4 cm

Scale using for plan ⇒ 1 m = 4 cm

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A point in the figure is selected at random. Find the probability that the point will be in the part that is NOT shaded.
Dovator [93]

Answer:

B

Step-by-step explanation:

So the question really is what is the probability that the point is in the square? You cannot pick something surrounding the circles because you do not know anything about that region.

This is solved by comparing areas. There are 2 full circles there. 1 circle has an area of pi*r^2

Total shaded area = 2 * pi * r^2.

Let r = 3   This is a completely random choice. No matter what number you choose for r, the answer will come out the same. When you get along a little further in math, you will find that you can just use letters.

Total shaded area = 2 * 3.14 * 3^2

Total shaded area = 2 * 3.14 * 9

Total shaded area = 56.55

Total area of the square.

s = 2*r

s = 2*3

s = 6

Area of the square = 6^2 = 36

Total area of both regions = 56.55 + 36 = 92.55

Answer

% = (area of square) * 100% / Total area of both regions

% = 3600 / 92

% = 39%

Obviously the answer I get is not offered. The closest answer is B so I will choose that.

==========================

This is how this question would be done without using any value for r.

Area of shaded region = 2 pi r^2 = 6.28 r^2

Area of square  = d^2 where d = 2r

Area of square = 4 r^2

Total area = 6.28 r^2 + 4r^2 = 10.28 r^2

Area of square to total = (4r^2/10.28 r^2 ) * 100%

Area of square to total (as a %) = 4/10.28  * 100 = 39% which gives the same answer.

7 0
3 years ago
Read 2 more answers
? 6) 7x2 - 7x<br> someone tell me the answerrrr
yarga [219]

Answer:

7x(x−1)

Step-by-step explanation:

7 0
2 years ago
PLS Help im sooo stuck on this question pls help and show your work and please dont put a nonsense answer
Snowcat [4.5K]

XY = xZ

85b + 83 = 91b - 283

Subtract 85b from both sides:

83 = 6b - 283

Add 283 to both sides:

6b = 366

Divide both sides by 6:

B = 61

Now replace b with 61 and solve for the length:

85(61) + 83

5185 + 83 = 5268

The length is 5,268

8 0
2 years ago
Write the number 0.5 in the form mc003-1.jpg, using integers, to show that it is a rational number.
Tasya [4]
If x=0.5, then 10x=5, and so x=\dfrac5{10}=\dfrac5{5\times2}=\dfrac12.
6 0
3 years ago
Someone help! I will really appreciate it if someone helped me.
Alex Ar [27]

Answer:

A

E

F

Step-by-step explanation: there the even ones

8 0
3 years ago
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