All categories

3 years ago

Write the equation in standard form. Show Work!

Mathematics

1 answer:

Serhud [2]3 years ago

6 0

Answer:

1. $2x^2-15x+17=0$

2. $2.4x^2-3.5x-2.2=0$

3. $-4.2x^2+6.8x-2=0$

Step-by-step explanation:

Standard form is written as $ax^2+bx+c=0$ . To write each equation in standard from:

Distribute into any parenthesis
Move terms across the equal sign with inverse operations
Combine any like terms

$2(x-3)^2=3x+1\\\\2(x^2-6x+9)=3x+1\\\\2x^2-12x+18=3x+1\\\\2x^2-15x+17=0$

$2.4x^2-3.5x=2.2\\\\2.4x^2-3.5x-2.2=0$

$6.8x - 2 = 4.2x^2\\\\-4.2x^2+6.8x-2=0$

You might be interested in

Plz help these r the last of my points

IRINA_888 [86]

w=61, the equation is w=(456-a-b-c)/2, so the work would look like 456-132-94-108=122/2=61

3 0

3 years ago

Read 2 more answers

There is an elevator in a building that is 450 feet tall with 30 stories. Starting from the 20th floor, the elevator descends st

olga2289 [7]

1450 ft / 29.6 ft/s = 48.9864864865 seconds

Step-by-step explanation:

6 0

2 years ago

Solve for the indicated variable in each scientific formula. c=wtc/1000 for w

Hitman42 [59]

First, multiply both sides by 1000
1000*c = w*t*c

Since c is on both sides, they would cancel each other out
1000 = w*t

Divide both sides by t.
w = 1000*t

6 0

3 years ago

You cut off half of a strip of paper. then you cut half of the piece was left. then you cut half of the remaining piece.

lianna [129]

Answer:

The fraction of the original strip left is $\frac{1}{8}$ .

Step-by-step explanation:

We have that,

A strip of paper is cut in $\frac{1}{2}$ . So, the strip of paper left is $\frac{1}{2}$ .

Now, again the remaining part is cut in half. The part left will be $\frac{1/2}{2}$ i.e. $\frac{1}{4}$ .

Finally, the remaining part is again cut in half.

We get, the final part of the paper remaining is $\frac{1/4}{2}$ i.e. $\frac{1}{8}$ .

So, the fraction of the original strip left is $\frac{1}{8}$ .

6 0

3 years ago

Jordan earned $200 this month delivering newspapers. His mom said he must put 20% into his savings account. He wants to buy head

Dennis_Churaev [7]

Answer:

Yes, his calculation is reasonable. He will have about $16.67 left.

Step-by-step explanation:

200 - (200 * .2) = $160 Subtract money for savings

99.95 + (99.95 * .07) + (17*2) + (17 * .07) + (17 * .07) = $143.33 Add taxes

160 - 143.33 = $16.67 Subtract money for purchases from money left after savings

6 0

2 years ago