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Leto [7]
3 years ago
7

Which is a solution to the equation 3x^2 + 2x − 20 = 2x^2 + 15?

Mathematics
1 answer:
pychu [463]3 years ago
6 0

the answer is b)-7 or it could be 5

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a mass of 40 grams cause a spring to stretch to the length of 40 cm, A mass of 60 grams causes it to stretch to a lenght of 6.7
uysha [10]

<u>Answer</u>

Part 1: l = -1.665g

Part 2: Max-mum the spring can support.

Part 3: The spring constant.


<u>Explanation</u>

Gradient is also called the slope.

Slope = (change in y) /(change in x)

            = (60 -40)/(6.7 - 40)

            = 20 / -33.3

           = - 0.600600601

Since the graph is a straight line, the equation would be,

m ∝ l

m = kl   Where K is the constant.

<u>g</u> = -0.60l

l = -1.665g

<u>Part 2</u>

The Y-intercept represent the mix-mum weight the spring can support.

<u>part 3</u>

The slope in this case represent the spring constant.

8 0
4 years ago
What makes ✔️7 irrational?
Vera_Pavlovna [14]
It is irrational because it is not a whole number, repeating decimal, or a terminated decimal. It never ends, and it never repeats. Therefore, it cannot be considered an integer.
8 0
3 years ago
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Round 1803.2684 to the nearest thousandth
exis [7]

Answer:

1,803.268

Step-by-step explanation:

so thousandths place is three number after the decimal just see the fourth number after the decimal and if it 5 or greater round the (in this case) 8 but since the fourth number was 4 it stays the same but only three numbers

8 0
2 years ago
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Solve each equation by factoring.
galben [10]
The Answers Are 1 & -2/3
6 0
3 years ago
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Oliver surveyed 880 of the students in his school about their favorite color. Students
forsale [732]

Answer:

572

Step-by-step explanation:

10%=88

5%=44

30%=264

35%=308= favourite colour blue

880-308=572= favourite colour red

3 0
3 years ago
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