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yarga [219]
3 years ago
12

URGENT!! PLEASE HELP!!!

Mathematics
1 answer:
olga55 [171]3 years ago
9 0

Answer:

The correct option is B.

Step-by-step explanation:

The formula for amount after compound interest is

A=P(1+\frac{r}{n})^{nt}

Where P is principal, r is rate of interest, n is number of times interest compounded in a period, t is number of years.

It is given that Felix took out an unsubsidized student loan of $40,000 at a 3.6% APR, compounded monthly. The amount after 33 month is

A=40000(1+\frac{0.036}{12})^{33}=44156.1074

The amount after 33 month is $44156.1074. So, the new principle amount is $44156.1074.

The monthly payment  of $44156.1074 for 20 years is

m=\frac{P.V.(\fracr)}{1-(1+r)^{-n}}

Where, P.V. is present value, r is rate of interest and n is number of times interest compounded.

m=\frac{44156.1074(\frac{0.036}{12})}{1-(1+\frac{0.036}{12})^{-20\times 12}}

m=258.362447711

m\approx 258.36

Therefore the correct option is B.

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Determine whether the study depicts an observational study or an experiment. Thirty university students are divided into two gro
alex41 [277]

Answer:

The provided study is an experiment.

Step-by-step explanation:

Consider the provided information.

Observational study: In this study observer only observe the subjects, and measure variables of interest without allocating treatments to subjects.

For example: you want to examine the  side effect of smoke on lung.

Experiment study:The researchers are applying treatments to experimental units in the research, then the effect of the treatments on the experimental units is observed.

For example: Flipping a coin

Now consider the provided information:

Thirty university students are divided into two groups. One group receives free tutoring in mathematics comma the other doesn't. After one semester comma scores on final mathematical examinations are compared.

Here, the researcher applying treatment to experimental units.

Thus, the provided study is an experiment.

6 0
3 years ago
Find the value if x and if nessesary express your answer as a simplified radical
tekilochka [14]

Answer:

10 rad 3 / 2

Step-by-step explanation:

x = missing angle of the full traingle

180 - (90 + 60) = x

180 - 150 = x

30 = x

10 rad 3 / 2 = x

this is just my understanding of the problem- im sorry if im incorrect

4 0
3 years ago
A small business owner has created a linear regression model to predict the number of new customers who will visit a shop based
coldgirl [10]

Answer: Explanatory variable = " number of times the owner has an advertisement played on the radio"

Response variable = "number of new customers who will visit a shop"

Step-by-step explanation:

  • An explanatory variable is a kind of independent variable that can be manipulated by researcher in a study to check the response of the response variable.

In the given situation , the business owner is predicting the number of new customers who will visit a shop based on the number of times the owner has an advertisement played on the radio.

Here , He is controlling the advertisement played on the radio to see the response of customers.

Therefore ,

Explanatory variable = " number of times the owner has an advertisement played on the radio"

Response variable = "number of new customers who will visit a shop"

4 0
3 years ago
A taxi cab charges $0.55 per mile in addition to a $1.75 flat rate fee. Susie has $10 to spend on a taxi cab ride. The taxi driv
insens350 [35]
X=0.55m+1.75 is the actual answer
8 0
3 years ago
Write a polynomial equation of degree 4 that has the following roots : -1 repeated three times and 4
Radda [10]

Answer:

x^4 -x^3 -9x^2 -11x -4

Step-by-step explanation:

We can use the zero product property

(x-a)  (x-b) (x-c) (x-d)  where a b c d are the roots

(x- -1)(x- -1)(x- -1) ( x-4) since the root -1 is repeated 3 times and 4 is a root

(x+1)(x+1)(x+1) ( x-4)

Foil the first two terms  and the last two terms

(x^2 + 2x+1)( x^2 -3x-4)

Foil again

x^4 -3x^3 -4x^2 +2x^3 -6x^2 -8x +x^2 -3x-4

Combine like terms

x^4 -x^3 -9x^2 -11x -4

6 0
3 years ago
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