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4 years ago

Identify the values of a, b, and c that would be used in the quadratic formula to solve the equation −9x = 13 − 5x2.

Mathematics

1 answer:

Softa [21]4 years ago

8 0

B.

You would first have to add 9 to each side so that the equation equaled 0. Then you could pull these numbers.

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Step-by-step explanation:

The loan duration is for 8 years, a total of 12·8 = 96 monthly payments. The 96th payment is the balloon payment.

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3 years ago

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harkovskaia [24]

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4 years ago

-2x - 5y = 13 2x - 5y =17

Flura [38]

{-2x-5y=13

{2x-5y=17 (+)

-2x+2x-5y-5y=13+17

-10y=30 /:(-10)

y=-3

2x-5y=17

2x-5*(-3)=17

2x+15=17

2x=2

x=1

Solution: (1; -3)

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3 years ago

Look at pic 10 pts will mark brainilest

Nina [5.8K]

Answer:

For part one...

you will multiply 4.5 by 3 to get 13.5 .

For part two,

you will multiply 3m by 4 to get 12.

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6 0

3 years ago

When building a house, the number of days required to build varies inversely with with the number of workers. One house was buil

Helga [31]

Let d represent number of days and n represent number of workers.

We have been given that when building a house, the number of days required to build varies inversely with with the number of workers.

We know that the equation $y=\frac{k}{x}$ represents the relation where y is inversely proportional to x and k is the constant of proportionality.

So our required equation would be $d=\frac{k}{n}$

Upon substituting our given values, we will get:

$19=\frac{k}{35}$

$k=19\cdot 35$

$k=665$

Since constant of proportionality is 665, so our equation would be $d=\frac{665}{n}$ .

To find the number of days it will take to build a similar house with 5 workers, we will substitute $n=5$ in our equation as:

$d=\frac{665}{5}$

$d=133$

Therefore, it will take 133 days for 5 workers to build a similar house.

5 0

3 years ago