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ratelena [41]
3 years ago
15

Help answer this question pls

Mathematics
1 answer:
Marina86 [1]3 years ago
6 0

Answer:

a. only 21 males drink only coffee

b. 21/100

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8090 [49]
A equals 54
im thinking b equals 12 but i could be wrong 
a is right though
4 0
3 years ago
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Factor each polynomial completely over the set of complex numbers.
S_A_V [24]

Answer:

1. a(x) = (x-4) (x-1) (2x+1) (x+3)


2. b(x) = (x^2-2) (x-5) (x+3)


3. c(x) = (2x-1) (x^2- 2x + 5)


3 0
3 years ago
Help pls so people say it’s none of these but idk I am confused.
crimeas [40]

Answer:

Volume = \pi r^2 h

2512 = 3.14 × r^2 × 8

r^2 = \displaystyle\frac{314}{3.14}

r^2 = 100

r = 10 \ cm

Diameter = 2r = 20 \ cm

Dont get confused try to understand : )

8 0
2 years ago
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Jaiden ran a 100 yard dash three times and took the average of his times. His times were 12.7, 11.2 and 11.8 seconds. On average
tekilochka [14]

Using the mean concept, it is found that on average, it takes him 11.9 seconds to run a 100 yard dash.

<h3>What is the mean?</h3>

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

In this problem, the three observations are given by:

12.7 s, 11.2 s, 11.8 s.

Hence the mean is:

M = (12.7 + 11.2 + 11.8)/3 = 11.9.

On average, it takes him 11.9 seconds to run a 100 yard dash.

More can be learned about the mean of a data-set at brainly.com/question/24628525

#SPJ1

4 0
1 year ago
Solve the following system of equations. 2x + y = 3 x = 2y - 1 Make sure there are NO SPACES in your answer. Include a comma in
mrs_skeptik [129]

Answer:  x=1;y=1 or (1,1)

Step-by-step explanation:

You can apply the Method of substitution.

Knowing that  x = 2y - 1 (second equation), you can substitute it into the first equation and solve for the variable y:

2x+y=3\\2(2y - 1)+y=3\\4y-2+y=3\\5y=3+2\\5y=5\\y=1

Now you need to substitute y=1 into the second equation x = 2y - 1 to calculate the value of the variable x. Then:

x = 2(1) - 1\\x=2-1\\x=1

Then, the solution is:

x=1;y=1 or (1,1)

5 0
3 years ago
Read 2 more answers
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