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MAVERICK [17]
3 years ago
9

Only number 7 please hurry

Mathematics
1 answer:
Stella [2.4K]3 years ago
4 0

Answer:

pretty sure its B and C

Step-by-step explanation:

because they have a common multiplier of 2.5 and are similar triangles

18 x 2.5 = 45

20 x 2.5 = 50

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What is the equation of a line that passes through the point (1, 8) and is perpendicular to the line whose equation is y=x/2+3 ?
Kipish [7]

-4x/5+8.8. I think that's it, and if it isn't, i don't know.

4 0
3 years ago
Use the given data to find the minimum sample size required to estimate a population proportion or percentage. Margin of error:
lisabon 2012 [21]

Answer: 191

Step-by-step explanation:

Formula to find the minimum sample size required to estimate a population proportion or percentage:

n= \hat{p}(1-\hat{p})(\dfrac{z^*}{E})^2

, where \hat{p} = proportion estimated by prior study.

E= Margin of error.

z* = Critical z-value.

Given : Confidence level = 95%

Critical value for 95% confidence = z*=1.96

\hat{p}=\ 42\%=0.42

E= 7%= 0.07

Then, n= 0.42(1-0.42)(\dfrac{1.96}{0.07})^2

n= 0.42(0.58)(28)^2

n= 0.2436(784)=190.9824approx191

Hence, the minimum sample size required=191

6 0
3 years ago
Simplify.
aleksley [76]
First multiply (-5/6) and (1/6) to get
-  \frac{5}{36}
then you subtract that from (8/9) to get
\frac{27}{36}
final answer is
\frac{3}{4}
5 0
3 years ago
I drove my car on cruise control at 65 miles per hour for 3 hours without stopping how far did I go
alexira [117]
If you drove 65 mph, for 3 hours, you would have driven 195 miles because 65*3 is 195 miles
8 0
4 years ago
Read 2 more answers
Help me with algebra please
MrRa [10]
The number between -1 and 10 means start counting from 0 and stop just before 10. Which is 9. And only include the odd integers. 

So, the set will be {1, 3, 5, 7, 9}.

EDIT:

I want to give a thank you to Helpwithschool for finding a mistake in my answer!
5 0
3 years ago
Read 2 more answers
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