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Assoli18 [71]
3 years ago
14

What are the solutions to the quadratic equation below? 3x2 +16x + 21 = 0

Mathematics
2 answers:
kifflom [539]3 years ago
7 0

Answer:

-3 and -7/3

Step-by-step explanation:

You could solve by factoring.

To do that, you find 2 numbers that multiply to 21, but add up to 16 when you multiply one of them by 3.

In this case, 3 and 7 would work, because 3*3 + 7 = 16, and 3 * 7 = 21.

Therefore, we can factor the equation to (3x+7)(x+3).

The solutions of the equations are -3 and -7/3.

tatyana61 [14]3 years ago
6 0
X=-7/3,-3
Pls mark brainliest
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The correct answer is 6.25 times.

This is how you get there:

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If you did this problem the other way, you would've ended up with .16. If you put the sizes into perspective, you will notice that this is highly unlikely.

I hope that I have been able to simplify this problem for you!

Brady
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Kayla uses fancy beads which she purchases online to make bangle bracelets. The chart shows the number of beads available for di
dezoksy [38]

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Step-by-step explanation:

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A large cube has a volume of 1 cubic unit. A small cube has a volume of 1 27 of a cubic unit. What is the difference between the
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Given:

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Volume of small cube = \dfrac{1}{27} cubic unit

To find:

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We know that, volume of a cube is

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a_2=\dfrac{1}{3}

So, edge of large cube is \dfrac{1}{3} unit.

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d=a_1-a-2

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d=\dfrac{3-1}{3}

d=\dfrac{2}{3}

Therefore, the difference between the edge length of the large cube and the edge length of the small cube is \dfrac{2}{3} unit.

6 0
3 years ago
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Answer:

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Step-by-step explanation:

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2. what is Dan's total pay if he doesn't sell any copies of math is fun?

Given

y=80x + 2400

When x=0

y=80(0)+2400

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change in Dan's total pay for each copy of math is fun he sells is

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2. Dan's total pay if he doesn't sell any copies of math is fun?

y=80x+2400

When x=0

y=80(0)+2400

=0+2400

=2400

8 0
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