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3 years ago

Simplify (5x^2 -3x+3) - (x^2+2x-1).

Mathematics

2 answers:

Natasha_Volkova [10]3 years ago

8 0

4x^2-5x+4 is the write answer

just open both brackets than just add and subtract

Natali [406]3 years ago

7 0

Eliminate parenthesis by using the distribution property

= 5x² -3x +3 - x² - 2x +1

Group similar terms

= (5-1)*x² + (-3 -2)*x + (3+1)

Then sum everything:

= 4x² -5x +4

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The cost of soda is $2.00 and the cost of candy is $1.50. You have $15 in your wallet. How much of each item can you purchase?

stich3 [128]

Answer:

4 soda's and 4 candy's with 1 dollar left over

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3 years ago

Use the law of sines to complete an expression that represents the angle measure x

Assoli18 [71]

Answer: 51.9 degrees
Step by step explanation:
Sin(71)/35.6=Sin(x)/21.3
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3 years ago

Write the unit fraction depicted in the model as a percent.<br><br> One-fourth

yan [13]

Answer:

1/4×100 = 0.25×100

= 25%

Thus,

1/4 = 25%

Step-by-step explanation:

Given the fraction

1/4

In order to write the fraction 1/4 as a percent, all we need is to multiply 1/4 by 100.

i.e.

1/4×100 = 0.25×100

= 25%

Therefore, we conclude that:

1/4 = 25%

4 0

3 years ago

Andrea has been asked to move several boxes of packing peanuts from the main office to the store room. She will have to carry ea

4vir4ik [10]

Answer:

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Step-by-step explanation

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3 years ago

Wages. JoAnn works in the publicity office at the state university. She is paid $10 an hour for the first 35 hours she works eac

rosijanka [135]

Since Joann receives $10 per hour for the first 35 hours, so she receives $350 (35 times $10) before she starts receiving extra hours.

Since she received $515, we know that she worked extra hours.

Let's use the variable x to represent the number of extra hours worked.

So we can write the following equation for the total payment received:

$\begin{gathered} 10\cdot35+15\cdot x=515 \\ 350+15x=515 \\ 15x=515-350 \\ 15x=165 \\ x=11 \end{gathered}$

She worked 11 extra hours. Adding this to the 35 regular hours, so she worked for 46 hours.

5 0

1 year ago

Read 2 more answers