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lidiya [134]
3 years ago
10

Are the equations 3x - -9 and 4x - -12 equivalent? Explain. Please Help!!

Mathematics
1 answer:
konstantin123 [22]3 years ago
7 0
No because  when  you do 3*--9 = 27 and 4*--12 =48

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A loan of $900 will be repaid in 36 installment payments of $30.22 each. What the finance charge for the loan?
zimovet [89]
First you need to multiply 36 *$30.22=$1087.92
This gives you the total amount paid

Then subtract 1087.92-900=187.92
This gives you the amount of money you paid in finance charges.
3 0
3 years ago
Sorry about the last question i forgot to put the picture but i need help cause i don't get it
kupik [55]

Answer:

21:8

Step-by-step explanation:

<u>Given information:</u>

Lori (x) is 8 years old.

In 5 years (x + 5), Philip will be twice Lori's age (y + 5 = 2(x + 5))

<u>The missing value, y, is needed to find the ratio for Lori's and Philip's ages in the present. To find y, solve this equation:</u>

y + 5 = 2(x + 5)   First, distribute the 2 into x + 5.

y + 5 = 2x + 10   Next, isolate the variable y by subtracting 5 from both sides.

y = 2x + 5           After that, add in the value of x, 8.

y = 2(8) + 5         Finally, simplify the right side to find Philip's age.

y = 16 + 5

y = 21

<u>Now for the easiest part: The ratio of Philip's age now to Lori's age now.</u>

because 21 is not divisible by any of 8's factors, the current ratio of 21:8 cannot be simplified further.

So, the ratio is 21:8

6 0
3 years ago
A function of random variables used to estimate a parameter of a distribution is a/an _____.
stiks02 [169]

A function of random variables utilized to calculate a parameter of distribution exists as an unbiased estimator.

<h3>What are the parameters of a random variable?</h3>

A function of random variables utilized to calculate a parameter of distribution exists as an unbiased estimator.

An unbiased estimator exists in which the difference between the estimator and the population parameter grows smaller as the sample size grows larger. This simply indicates that an unbiased estimator catches the true population value of the parameter on average, this exists because the mean of its sampling distribution exists the truth.

Also, we comprehend that the bias of an estimator (b) that estimates a parameter (p) exists given by; E(b) - p

Therefore, an unbiased estimator exists as an estimator that contains an expected value that exists equivalent to the parameter i.e the value of its bias exists equivalent to zero.

Generally, in statistical analysis, the sample mean exists as an unbiased estimator of the population mean while the sample variance exists as an unbiased estimator of the population variance.

Therefore, the correct answer is an unbiased estimator.

To learn more about unbiased estimators refer to:

brainly.com/question/22777338

#SPJ4

4 0
1 year ago
What is m∠G to the nearest tenth?
vitfil [10]

Answer:

Step-by-step explanation:

tan(G) = 28.2/45.8

G = arctan(28.2/45.8) = 31.6°

4 0
3 years ago
Nate walks 25 meters in 13.7 seconds. if he walks at the same rate, which of the following is closest to the distance he will wa
Nookie1986 [14]
Distance:time=25:13.7
ratio and propriton

4min=60sec*4=240sec

25/13.7=?/240
times both sides by 240*13.7
25*240=13.7?
6000=13.7?
divide both sides by 13.7
437.9562=?
about 438 meters
8 0
3 years ago
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