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2 years ago

Combine the like terms to simplify the expression:

1 answer:

7 0

$5+7+15xy^2+9y^3+10x-13xy^2-3x-8y^3\\\\=(5+7)+(15xy^2-13xy^2)+(9y^3-8y^3)+(10x-3x)\\\\=12+2xy^2+y^3+7x\\\\=\boxed{y^3+2xy^2+7x+12}\leftarrow\boxed{A}$

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GaryK [48]

A: 8*9= 72

B: euclidean theorem (35,63) (35,28) (7,28) (7,0) gcf= 7

C: 7(5+9)

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2 years ago

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2 years ago

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KengaRu [80]

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Step-by-step explanation:

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2 years ago

Michael obtains a 30/8 balloon mortgage to finance $425,500 at 6.55%. How much principal and interest will he have already paid

STALIN [3.7K]

Answer:

$259 532

Step-by-step explanation:

Step 1. Calculate the monthly payments on a 30-year loan.

The formula for the monthly payment (P) on a loan of A dollars that is paid back in equal monthly payments over n months, at an annual interest rate

of r % is

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

We must express the interest rate on a monthly basis.

i = 6.55 %/yr = 0.545 83 %/mo = 0.005 4583

A = $425 500

n = 360 mo

<em>Calculation: </em>

$P = 425 500(\frac{0.005 4853}{1-(1+0.005 4583)^{-360}})$

$P = \frac{2332.22}{{1- {1.005 4583}}^{-360}}$

$P = \frac{2332.52}{1 – 0.140907}$

$P = \frac{2332.52}{0.859 093}$

P = $2703.46

B. Total Payment (T) after 8 years

T = nP

T = 96 × 2703.46

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Michael will have paid $259 532 at the end of eight years.

4 0

2 years ago

What is the inverse of the function f(x)= 19/x^3 ?

Ugo [173]

$f(x)=\dfrac{19}{x^3}\to y=\dfrac{19}{x^3}\\\\\dfrac{y}{1}=\dfrac{19}{x^3}\ \ \ \ |cross\ multiply\\\\yx^3=19\ \ \ \ |:y\neq0\\\\x^3=\dfrac{19}{y}\to x=\sqrt[3]{\dfrac{19}{y}}$
Answer: $f^{-1}(x)=\sqrt[3]{\dfrac{19}{x}}$

8 0

2 years ago