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Olin [163]
3 years ago
11

Joe wants to purchase

Mathematics
2 answers:
Oxana [17]3 years ago
8 0

Answer: the answer is 64%

Step-by-step explanation:

svp [43]3 years ago
3 0

Answer:

64.23%

Step-by-step explanation:

Percent error

(699-250)/699  x 100 = 64.23

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Y=30w+200 please help me
marissa [1.9K]

Answer: That is the final answer, y=30w+200

Step-by-step explanation:

8 0
3 years ago
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Each point shown below is reflected over the x-axis to create two additional points. The four points are connected with straight
Licemer1 [7]

Answer:

i would say 36

Step-by-step explanation:

because you take each line equally making a big square

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3 years ago
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Mr. Allen has 2 dogs, Spike and Fido. He takes both of them outside at 6:00 a.m. He takes Spike outside every 3 hours. He takes
san4es73 [151]

Answer:

3 pm

Step-by-step explanation:

Because 3x5 = 15 and 5x3=15 so it would be at 3 pm

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3 years ago
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The hours a week people spend answering and sending emails is normally distributed with a standard deviation of Ï = 150 minutes.
storchak [24]

Answer:

sample size n would be 149305 large

Value of n (149305) is too high, this will be the practical problem with attempting to find this confidence interval

Step-by-step explanation:

Given that;

standard deviation α = 150 min

confidence interval = 99%

since; p( -2.576 < z < 2.576) = 0.99

so z-value for 99% CI is 2.576

E = 1 minutes

Therefore

n = [(z × α) / E ]²

so we substitute

n = [(2.576 × 150) / 1 ]²

n = [ 386.4 ]²

n = 149304.96 ≈ 149305

Therefore sample size would be 149305 large

Value of n is too high, that would be the practical problem with attempting to find this confidence interval

4 0
3 years ago
Using the given zero, find one other zero of f(x). Explain the process you used to find your solution.
umka21 [38]
Complex zeroes always occurs as conjugates.
For z = a + b i conjugate is: a - b i
Another zero is : 2 + 3 i.
Verification:
2 + 3 i + 3 - 3 i = - b/a
- b = 4,  a = 1
( 2 + 3 i ) ( 2 - 3 i ) = c / a
4 - 9 i² = c / a
4 + 9 = c / a
c = 13
( x^4 - 4 x³ + 14 x² - 4 x + 13 ) : ( x² - 4 x + 13 ) = x² + 1
x² + 1 = 0
x² = -1,  x = i,  x = -i
The zeroes are: - i , i , 2 + 3 i, 2 - 3 i.
Answer: 
One another zero of f ( x ) is 2 + 3 i.
7 0
4 years ago
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