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natta225 [31]
3 years ago
15

NO LINKS! PLEASE HELP BRAINLIESTTT

Mathematics
1 answer:
rjkz [21]3 years ago
8 0

Answer:

B.certain

Step-by-step explanation:

because if you take the number and add it you will get the answer

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A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than ex
quester [9]

Answer:1866

Step-by-step explanation:

Given

n=200

x=118

Population proportion P=\frac{118}{200}=0.59

\alpha=0.005

Realiability =99%

Z_{\frac{\alpha }{2}}=2.576

Margin of erroe is given by \sqrt{\frac{p\left ( 1-p \right )}{N}}

0.03= \sqrt{\frac{0.59\left ( 1-0.59 \right )}{N}}

85.667=\sqrt{\frac{N}{0.6519}}[tex]N=1865.88[tex]\approx 1866 Students

4 0
2 years ago
A biologist took a count of the number of migrating waterfowl at a particular lake, and recounted the lake's population of water
taurus [48]

Quadratic function ( in standard form ):

y = a x² + b x + c

x = 0:

635 = 0 + 0 + c

c = 635

x = 1:

644 = a + b + 635

a + b = 9

x = 2:

719 = 4 a + 2 b + 635

4 a + 2 b = 84

and now we have a system:

a + b = 9   /  * ( - 2 )

4 a + 2 b = 84

-------------------------

- 2 a + 2 b = - 18

+

 4 a + 2 b  = 84

-------------------------

  2 a = 66

 a = 33;   b = - 24;

 Function is:

 f ( x ) = 33 x² - 24 x + 635

f ( 8 ) = 33 * 64 - 24 * 8 + 635 = 2,112 - 192 + 635 = 2,555

 Answer: The number of waterfowl on week 8 would be 2,555.

 

8 0
3 years ago
X/2-8=19 what is the answer for this equation
Ilya [14]

Answer:

x=38wh + 16

Step-by-step explanation:

multiply both sides of the equation by 2

move the constant to the right

find the final solution

3 0
2 years ago
Read 2 more answers
Just trying to pass math man
makkiz [27]
The answer is 3x^2 +3x
6 0
2 years ago
Use parallelogram ABCD. What are the values of x and y?<br><br> x = <br> y =
Tasya [4]

Answer:

x = 17 and y = 10

Step-by-step explanation:

ABCD is a parallelogram

So AB = CD and AD = BC

so

3x - 9 = 42

3x = 51

 x = 17

and

4y - 3 = 37

4y = 40

 y = 10

Answer

x = 17 and y = 10

6 0
3 years ago
Read 2 more answers
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