3 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]3 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.

You might be interested in

Suppose Elina used 15 tiles to make the rectangular design. How many different rectangles could she make with the 15 tiles.

miss Akunina [59]

25............................

5 0

2 years ago

Answer please need help with this

allsm [11]

Answer:

n = - $\frac{13}{8}$

Step-by-step explanation:

Given

- 8n = 13 ( divide both sides by - 8 )

n = $\frac{13}{-8}$ = - $\frac{13}{8}$

6 0

2 years ago

What is the value of i^20+1?

ICE Princess25 [194]

You know

$i^2=-1$

Squaring both sides gives

$(i^2)^2=(-1)^2\implies i^4=1$

Then raising both sides to any integer power $n$ gives

$(i^4)^n=1^n\implies i^{4n}=1$

That is, any power of $i$ where the power is a multiple of 4 will always be equal to 1.

$i^{20}+1=1+1=2$

But perhaps you mean to write 20+1 as the exponent, in which case

$i^{20+1}=i^{20}i=i$

8 0

3 years ago

Simplify: (2x + 8)(7x2 - 9x - 5)

kondaur [170]

Answer:

-18x^2 -54x + 72

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

What is the missing reason in the proof?

Nookie1986 [14]

A) corresponding angle theorem

3 0

2 years ago