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NeTakaya
3 years ago
6

What is the simplified expression for -3x2 + 5x + 2 - 1 - 7x + 3x2

Mathematics
1 answer:
Jobisdone [24]3 years ago
5 0

Answer:

-2x + 1

Step-by-step explanation:

1: -3x^2 + 5x + 2 - 1 - 7x + 3x^2

2: (-3x^2 + 3x^2) + (5x - 7x) + (2 - 1)

3: 0 - 2x + 1

4: -2x + 1

Step 1: Given equation

Step 2: Group the terms with similar exponents together

Step 3: Add the terms together

Step 4: Simplify completely

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Scott collects hats. He has 65 hats an plans on buying 80 per year.
kicyunya [14]

Answer:

80x+65 2.465 3.865

Step-by-step explanation:

x being the number of years so in ten years he will have 80x10=800+65=865

80x5=400+65=465 so 5 is the number of years it would take

and i do not understand number 1 but i put a formula just in case that was it

7 0
3 years ago
The mean height of plants is 18 inches. The height of seven plants are 12 inches, 13 inches, 15 inches, 15 inches, 17 inches, 23
ahrayia [7]

Answer:

25 inches

Step-by-step explanation:

i first started with 18×8=144 then i did 144-119 and got 25.

3 0
3 years ago
In a programming team of 20 persons, 1/4 are women and 3/4 are men. to obtain a team with 40% women, how many women should be hi
Savatey [412]
This is the concept of algebra, to solve the question we proceed as follows;
the current number of women is:
1/4*20=5 women
the percentage of women is:
1/4*100=25%
therefore for the team to have 40% women, the number of women should be:
40/25*5
=8 women
The answer is 8 women
3 0
4 years ago
What is the probability of getting two heads if you flip two fair coins? answer as a simplified fraction ​
JulsSmile [24]

Answer: \frac{1}{4}

Step-by-step explanation:

use probability

the chances of you getting heads on a coin is 50% therefore, flipping two coins is just

\frac{1}{2} * \frac{1}{2}= \frac{1}{4}

3 0
2 years ago
Read 2 more answers
Hey, i forgot how to solve this problem. can you solve it for me? <br><br> a/3 + 11 = -5
Anuta_ua [19.1K]

Answer:

a = -48

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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