All categories

2 years ago

Find the standard form of the quadratic equation: f(x)=(2x-1)(x+4)

Mathematics

1 answer:

katrin [286]2 years ago

3 0

Answer:

$f(x) = 2x ^{2} + 7x - 4$

Step-by-step explanation:

$\because \: f(x) = (2x - 1)(x + 4) \\ \therefore \:f(x) = 2x(x + 4) - 1(x + 4) \\ \therefore \:f(x) = 2x ^{2} + 8x - x - 4 \\ \therefore \:f(x) = 2x ^{2} + 7x - 4 \\$

You might be interested in

Suppose the average yearly salary of an individual who final degree is a masters is $55,000 less than twice of that an individua

Sergeeva-Olga [200]

Answer:

It's D I just did it

Step-by-step explanation:

8 0

2 years ago

Enter the answer to the nearest tenth. Another home business has an average income of $1.200.00 per month with a standard deviat

Nonamiya [84]

Answer: -1.7

Step-by-step explanation:

Given : Another home business has an average income of $1.200.00 per month with a standard deviation of $100.00.

i.e. $\mu=\$1200.0$

$\sigma=\$100.00$

Let x represents the monthly income.

Since . $z=\dfrac{x-\mu}{\sigma}$

For x= 1030 , we have

$z=\dfrac{1030-1200}{100}=-1.7$

Hence, the required z-score = -1.7

5 0

2 years ago

Mila reads at a rate of 3 paragraphs per minute.

Alexxx [7]

Answer:

y= 3x

Step-by-step explanation:

This is honestly your basic times tables if we are being honest. We know that she read 3 paragraphs per minute. We also know that in 4 minutes, she read 12 paragraphs. 4 times 3 = 12. So the answer is y=3x.

7 0

2 years ago

Put the following number from least to greatest

gavmur [86]

Answer:

Sry i need points

Step-by-step explanation:

5 0

2 years ago

2x-50=150 <br> Someone please help me out

Charra [1.4K]

Start out by adding 50 to both sides.

2x - 50 + 50 = 150 + 50
which simplifies to
2x = 200

then divide both sides by 2
2x ÷ 2 = 200 ÷ 2
which simplifies to
x = 100

And that is your answer! Hope this helps :)

4 0

2 years ago

Read 2 more answers