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andrew11 [14]
3 years ago
7

A geneticist is studying a population of fruit flies. Of the 1278 flies, 467 are wingless and 446 have red eyes. There are 210 f

lies that are wingless whose eyes are not red. What is the approximate probability that a fly is wingless or has red eyes?
0.49
0.51
0.71
0.88
Mathematics
1 answer:
andreev551 [17]3 years ago
5 0
0.49 is the answer because that is <span>the approximate probability</span>
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The probability of randomly selecting a female from a group of 25 elementary school teachers is . Which of the following describ
nirvana33 [79]

Answer:

it is likely that a female will be picked

Step-by-step explanation:

the probability of selecting a female = 21/25....or 84%

7 0
3 years ago
A new park was designed to contain two circular gardens. Garden A has a diameter of 50 m, and garden B has a diameter of 70 m. T
Nastasia [14]

Answer:

5,811.95\  m^2 of fabric.

Step-by-step explanation:

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-We calculate the combined areas as:

A=A_s+A_b\\\\=\pi r^2+\pi R^2\\\\=\pi(25^2+35^2)\\\\=1850\pi \ m^2\\\\=5811.95\ m^2

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5 0
3 years ago
Sandra bought four items in sale. On which purchase did she save the money?
Lemur [1.5K]
The four items that were on sale? Sorry I need more info in order to help.
6 0
3 years ago
What is the area of parallelogram RSTU?
Arte-miy333 [17]
First, we circumscribe a rectangle about the parallelogram as shown in the figure. The size of this rectangle is 10 by 6 clearly.

Between the rectangle and the parallelogram 4 triangles are formed, 2 by 2 congruent. We are going to remove the area of these 4 triangles from 60 (the area of the rectangle) and thus get the area of the parallelogram.

Note that one of the triangles has side lengths 4; 4. Thus, the area of this triangle is (4*4)/2=16/2=8 (square units.)

Each of the other two non-congruent triangles to the above have sides of length 6;2, so the area of each is (6*2)/2 =6 (square units.)


Thus, the area of the parallelogram is 60-8-8-6-6=60-16-12=60-28=32 (square units.)


Answer: 32 (square units.)

6 0
3 years ago
Read 2 more answers
-11 minus 5b = -6b minus 3
LiRa [457]

Answer:

b = 8

Step-by-step explanation:

-11 - 5b = -6b - 3

add 11 to both sides:

-5b = -6b + 8

add 6b to both sides:

-5b + 6b = 8

simplify:

b = 8

4 0
3 years ago
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