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Reil [10]
3 years ago
6

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

Mathematics
1 answer:
vitfil [10]3 years ago
3 0

Answer:

About 20%

Step-by-step explanation:

The probability of a point on the un-shaded region will be given by;

Area of the shaded region/total area  

Considering that the circles are of the same size, then the length of the square is 2d

Area of the square = 4d²

Area of the shaded = (4d² -4π(d/2)²

= 4d² -πd², but π = 22/7

= 6/7d²

Probability = (6/7d² ÷ 4d²) × 100%

= (6/28 d²) × 100%

= 21.42 %

So your answer is B. 20%

Don't thank me this was easy.

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Larry read a 400400400-page book. He read at a rate of 101010 pages per day for ddd days. Write an equation that could be used t
ira [324]

Answer:

From Larry's rate, the equation can be given as D = T/101010

Step-by-step explanation:

Larry's book has 400400400 pages

His reading rate is 101010 pages per day

Let D = Number of days to read the book

To get the number of days it takes fro Larry to read this book, we say

Total pages = Reading rate (pages/day) x Number of days

Let Total pages = T

and Reading rate = R

Hence;

D = T / R

From Larry's rate, the equation can be given as D = T/101010.

From the question,

ddd = 400400400 (pages) / 101010 (pages/day) = 3963.9 days

Hence, it takes Larry approximately 3964 days to read the book.

7 0
4 years ago
What would x equal to if x equaled 4 in this: 4x
andriy [413]

Answer:

x = 4 and the expression when evaluated at x = 4, is 16.

Step-by-step explanation:

For this problem, we will simply look at the wording of the question and the given expression.  The question ask, "What would x be equal to if x equaled 4 in this: 4x?"

In the problem, we are already given that x = 4 in the following expression, so the answer to the question is x = 4.  If we were to evaluate the expression when x = 4, we would say the following:

If x = 4, then:

4x

= 4(4)

= 16

Hence, the expression would be 16 if evaluated when x = 4.

Cheers.

8 0
3 years ago
I'll give BRAINLEST to anyone who's gives the BEST example Write the fraction in simplest form: 55/132 a. 5/12 b. 55/132 c. 55/1
svetoff [14.1K]

Answer:

a. 5/12

Step-by-step explanation:

55/132 can be divided by 11 so if 55 is divide by 11 it is 5 and if 132 is divided by 11 its 12.

5 0
3 years ago
Find the area of the rectangle
rodikova [14]

Answer:

33xx-50x+8

Step-by-step explanation:

multiply 3x-4 by 11x-2

5 0
3 years ago
There are 7 students in a class: 5 boys and 2 girls.
katrin2010 [14]

Answer:

4/7

Step-by-step explanation:

5+2=7

7 children

4 boys Out of 7 children

8 0
3 years ago
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