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2 years ago

What are the coefficients in this expression? 2x +9y+(-4) Select all that apply.

Mathematics

2 answers:

Oksi-84 [34.3K]2 years ago

7 0

Answer: A and B

Step-by-step explanation:

Coefficient is the number or term that came before a variable.

If you can't understand this, I will provide some examples.

Coefficient in 3x is 3, 3 came before x which is a variable

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2x + 9y + (-4)

2x: coefficient is 2

9y: coefficient is 9

-4: no coefficient, it is just a constant

zalisa [80]2 years ago

6 0

A) 2 and B) 9
Coefficients are the numbers in front of a variable. The x and y wouldn’t be considered coefficients.

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3 years ago

Find the value of annuity if the periodic deposit is $250 at 5% compounded quarterly for 10 years

mylen [45]

Answer:

The value of annuity is $P_v = \$ 7929.9$

Step-by-step explanation:

From the question we are told that

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The number of years is $t = 10 \ years$

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$P_v = P * [1 - (1 + \frac{r}{n} )^{-t * n} ] * [\frac{(1 + \frac{r}{n} )}{ \frac{r}{n} } ]$ (reference EDUCBA website)

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$P_v = 250 * [1 - (1 + \frac{0.05}{4} )^{-10 * 4} ] * [\frac{(1 + \frac{0.05}{4} )}{ \frac{0.08}{4} } ]$

$P_v = 250 * [1 - (1.0125 )^{-40} ] * [\frac{(1.0125 )}{0.0125} ]$

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3 years ago

Simplify the expression a+2c-5b-c+a-b

romanna [79]

A + 2c - 5b - c + a - b
We're gonna have to combine like terms.

(a+a)+(-5b-b)+(2c-c)

2a-6b+c This is your answer

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2 years ago