3 years ago

If an equation has two roots -4 and 7, what could be the quadratic equation?

Mathematics

1 answer:

aleksklad [387]3 years ago

8 0

Answer:

f(x) = x^2 - 3x - 28

Step-by-step explanation:

The root -4 corresponds to the factor (x + 4); the root 7 corresponds to (x - 7). The equation is thus f(x) = (x + 4)(x - 7) = x^2 - 3x - 28, or

f(x) = x^2 - 3x - 28

You might be interested in

Use either point Bor point Cto find the lengths of the

zalisa [80]

Please don’t click link it’s a hacker !!!

8 0

3 years ago

Calculate the slope between the points: (4, -9) and (5, 1)

12345 [234]

Answer:

The answer is A- m=10

Step-by-step explanation:

The way to find slope is known as "Rise over Run" meaning the increase of Y over the increase of X. The increase of Y is 10 because 1 - (-9) = 10. The increase of X is 1 because 5 - 4 = 1. 10 over 1, or 10 / 1, equals 10.

3 0

4 years ago

What is the intersection of plane WZVS and plane STUV?

bulgar [2K]

An easy way to find this is to look at the cross section, and see where the lines meet

8 0

3 years ago

Read 2 more answers

2. Calcula el área de un cuadrado, al que, si aumentamos la longitud de dos lados paralelos en 2 cm y disminuimos la longitud de

choli [55]

Answer:

the area is 6

Step-by-step explanation:

5 0

3 years ago

A manufacturer of batteries knows that 10% of the batteries produced by a particular production line are defective. A sample of

defon

I think you need only an answer without expanation so let's start.
a) $P = \frac{200!}{180!x20!} * 0,1^{20}*0,9^{180} = 0.093636$
b) $Probability = 0.5 + \frac{1}{2} (0.093636) = 0.54682$

5 0

4 years ago