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Yakvenalex [24]
2 years ago
9

Factor 5z^2+45z. The factored polynomial is _

Mathematics
1 answer:
erik [133]2 years ago
4 0
Here you go
5z(z+9)
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Is this in scientific notation? Thank you!
kari74 [83]
No because the number has to be between 1 and 10 so it should be 2.6x10^3
5 0
3 years ago
3. What is the slope of the line that contains the
dlinn [17]

Answer:

I think the answer would be -1/2 or D.

Step-by-step explanation:

Use this formula for calculating slope : y2-y1 / x2 - x1                                                            

1. label the pairs, 1 and 2

(-6, 1)  - ( x1, y1 )          or        (4,-4) - (x1, y1)

(4,-4) - ( x2, y2)                      (-6,1) - (x2, y2)  

(the order does not matter)

2. Than plug in your numbers

y2-y1 / x2 -x1                 y2-y1 / x2 -x1

-4 - 1 / 4 - (-6)        or        1 - (-4) / -6 - 4

= -5/10 or -1/2               = - 5/-10 or -1/2

im only in eight grade so i did my best explaining , and this hope it helps :)

7 0
3 years ago
A survey reported in Time magazine included the question ‘‘Do you favor a federal law requiring a 15 day waiting period to purch
galben [10]

Answer:

Step-by-step explanation:

Confidence interval for the difference in the two proportions is written as

Difference in sample proportions ± margin of error

Sample proportion, p= x/n

Where x = number of success

n = number of samples

For the men,

x = 318

n1 = 520

p1 = 318/520 = 0.61

For the women

x = 379

n2 = 460

p2 = 379/460 = 0.82

Margin of error = z√[p1(1 - p1)/n1 + p2(1 - p2)/n2]

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.025 = 0.975

The z score corresponding to the area on the z table is 1.96. Thus, confidence level of 95% is 1.96

Margin of error = 1.96 × √[0.61(1 - 0.61)/520 + 0.82(1 - 0.82)/460]

= 1.96 × √0.0004575 + 0.00032086957)

= 0.055

Confidence interval = 0.61 - 0.82 ± 0.055

= - 0.21 ± 0.055

3 0
2 years ago
Kathy distributes jelly beans among her friends. Alia gets 4² fewer beans than kelly who gets 3³ jelly beans. how many jelly bea
grin007 [14]
4^2= 16
3^3= 27
27-16=11 so Alia has 11 jelly beans
3 0
2 years ago
Read 2 more answers
Your favorite baseball player is doing much better this year than he did last year. Last year he got 5656 hits. This year he has
Lostsunrise [7]
I believe the answer is 186,648.
6 0
3 years ago
Read 2 more answers
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