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3 years ago

Simplify the expression: (2x2 + 3x - 7) + (5x2 - x +9)

Mathematics

2 answers:

wolverine [178]3 years ago

7 0

Answer:

$7x^2 + 2x + 2$

Step-by-step explanation:

Step 1: Combine

$2x^2 + 3x - 7 + 5x^2 - x + 9$

$(2x^2 + 5x^2) + (3x - x) + (-7 + 9)$

$7x^2 + 2x + 2$

Answer: $7x^2 + 2x + 2$

Anvisha [2.4K]3 years ago

6 0

7x^2+2x+2 is the best answer

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3 years ago

20 points and brainlist if correct!

weeeeeb [17]

Answer:

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Step-by-step explanation:

look at the equation 4x2.36x.25. If you write the equation differently as 4x.25x2.36, the equation becomes easier to solve. Why? As you can see 4 and .25 (aka 1/4) 4 and 1?4 are reciprocals and anything multiplied by the reciprocal is 1. so 1x 2.36 is 2.36. The Communicative Property just helps to see those patterns and connections

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3 years ago

Lucas is making accessories for the soccer team. He uses 883.68 inches of fabric on headbands for 46 players and 2 coaches. He a

zimovet [89]

The total fabric used for headband and wristband of a player was: 27.84 inches

Step-by-step explanation:

The question will be solved step by step.

So,

Total ribbon used for headbands = 883.68 inches

Total number of people for whom headbands were made = 46 players + 2 coaches = 48 inches

so the headband for one person will use fabric: $\frac{883.68}{48}\\= 18.41\ inches$

Then

Total fabric used for wristbands = 433.78 inches

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$Fabri\ for\ one\ player's\ wristband = \frac{433.78}{46}\\=9.43\ inches$

Total fabric for one player = 18.41 + 9.43 = 27.84 inches

Hence,

The total fabric used for headband and wristband of a player was: 27.84 inches

Keywords: Fractions, decimals

Learn more about fractions at:

#LearnwithBrainly

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3 years ago

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