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andrezito [222]
3 years ago
10

The variables x and y are directly proportional, and y=4 when x=9. What is the value of y when x=18?

Mathematics
2 answers:
mezya [45]3 years ago
8 0

Answer:

The value of y is 20 when x = 15 <em> i think</em>

<em />

Step-by-step explanation:

alexandr402 [8]3 years ago
5 0

Answer:

Step-by-step explanation:

Y=4 when x=9

X=18---> y=8

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Which of the following relations is NOT a function?
Alexxandr [17]

Answer:

It is A.

Step-by-step explanation:

In function A we see that there are 2 ordered pairs with value 2 in the first position with y values 6 and 2. So this is not a function.

5 0
3 years ago
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nignag [31]
I think it’s the fourth one!!
6 0
3 years ago
What happens to the interval as the level of confidence is​ changed? Explain why this is a logical result.
Elan Coil [88]

Answer with explanation:

A x% confidence interval interprets the percentage of certainty that a person can believe that the true population parameter.

It is also represented as Point estimate ± Margin of error

Confidence level is proportional to the Margin of error.

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6 0
2 years ago
Phil can afford $200 a month for 5 years for a car loan. if the interest rate is 7.5 percent, how much can he afford to borrow t
madreJ [45]
200 per month for 5 years = 12,000
Phil can (at most) pay 12,000 for the car loan.
That would be the payment total.
So, how do we solve for the PRINCIPAL?
Looking at the attached formula, we see the
principal = Total - Total * ((1 +r)^-n) / r * n
where n = # of payments = 5 year * 12 months = 60 and
rate / 1.200 = 7.5/1,200 = .00625
 
principal = [12,000 - 12,000 * (1.00625)^-60] / .375
principal = [12,000 - 12,000 * <span> <span> <span> 0.6880918239 </span> </span> </span> ] / .375
principal = [12,000 - <span> <span> <span> 8,257.1018863488] / .375
</span></span></span>principal = <span> <span> <span> 3,742.</span></span></span>90 / .375
principal = 9,981.06

Source:
http://www.1728.org/loanfrm4.htm


6 0
3 years ago
Read 2 more answers
Point M is the midpoint of JK find JK when JM = 6x - 7 MK = 2x + 3 ​
eimsori [14]

Answer:

JK= 8x-4

Step-by-step explanation:

This is achieved by adding JM And MK because M is the midpoint of JK.

7 0
3 years ago
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