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Alinara [238K]
3 years ago
12

Help me because I dont understand

Mathematics
1 answer:
hoa [83]3 years ago
6 0

Answer:

105 sq ft + 31 sq ft

Step-by-step explanation:

=  136 sq ft

Hope it helps✌✌

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Find the probability that a randomly selected point within the circle falls in the red shaded area (square). Round to the neares
Fantom [35]

Answer:

probability of selecting the square is 63.7% approximately

Step-by-step explanation:

First of all, the probability of the point of choice is within the red square can be obtained with this formula

probability = expected outcome / total number of possible outcomes

In this case, we are not dealing with discrete values which can be counted. instead, we are dealing with areas.

We are to go about this problem by finding the area of the internal square and dividing it by the area of the circle.

Area of the square

Area of the square = l^2

where length = 4\sqrt{2}

Area = (4\sqrt{2}) ^2 = 32cm^2

Area of the circle

Area of the circle = \pi r^2

area of circle =\pi \times 4^2 =50.26cm^2

Probablity of selecting the square =

32/50.26 = 0.6366

To express this as a percentage, we multiply our answer by 100.

This will give us 0.6366 X 100 = 63.7% approximately

6 0
3 years ago
A company is trying out a new marketing technique that begin by asking One customer to tell three friends about a product in the
Nostrana [21]

Week 1 : 1 customer tells 3 friends

Week 2: 3 new customers tell 9 friends

Week 3: 9 new customers tell 27 friends

If w represents number of weeks, then (C) represents the model appropriately. Let's see how:

Putting w = 1 , 2 and 3 in each of the options

(A) 3w: 3 for week 1, 6 for week 2, 9 for week 3 ⇒ INCORRECT

(B) w^3: 1 for week 1, 8 for week 2, 27 for week 3 ⇒ INCORRECT

(C) 3^w: 3 for week 1, 9 for week 2, 27 for week 3 ⇒ CORRECT

(D) 3w^3: 3 for week 1, 24 for week 2, 81 for week 3 ⇒ INCORRECT

Hence, the answer is (C)


5 0
3 years ago
Read 2 more answers
A sporting goods store pays $150 for a rubber raft. The percent of markup is 55%. Find the raft’s selling price.
Darina [25.2K]
If my math is correct its about 82.5
3 0
3 years ago
If maria paid her supplier $8.50/doz for roses and sold them for $19.95,what was the percent markup?
Shkiper50 [21]

Answer: 42.6% or you can round it to 43%


Step-by-step explanation:


6 0
3 years ago
Simplify -4 1/4-(-9 1/2) = ? <br><br>A. -13 1/3 <br>B. -5 1/4<br>C. 13 1/3<br>D. 5 1/4​
bagirrra123 [75]

Answer:

B

Step-by-step explanation:

Hope this helps

5 0
3 years ago
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