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konstantin123 [22]
3 years ago
11

Solve this quadratic equation using the quadratic formula. 3x2 + 5x + 1 = 0

Mathematics
1 answer:
iren [92.7K]3 years ago
3 0
Solve for x over the real numbers:
3 x^2 + 5 x + 1 = 0
Hint: | Using the quadratic formula, solve for x.
x = (-5 ± sqrt(5^2 - 4×3))/(2×3) = (-5 ± sqrt(25 - 12))/6 = (-5 ± sqrt(13))/6:
Answer: x = (-5 + sqrt(13))/6 or x = (-5 - sqrt(13))/6
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Please help and show work!!
Ket [755]

Hi!

The answer should be third option.

20+4j\ge 2\left(j+20\right)

20+4j\geq 2j+40

20+4j-20\geq 2j+40-20

4j\geq 2j+20

4j-2j\geq 2j+20-2j

2j\geq 20

\frac{2j}{2}\geq \frac{20}{2}

Answer ---> j\geq 10

Explanation: <u><em>First you had to subtract by the 20 from both sides. Then simplify it gave us 4j ≥ 2j+20.  You can also subtract by the 2j from both sides. Then simplify its going to be 2j≥20. Next, you can also divide by 2 from both sides, and it gave us the answer is j≥10 is the right answer. Hope this helps! And thank you for posting at here on Brainly. And have a great day. -Charlie</em></u>

5 0
3 years ago
Answer this please thanks
Nesterboy [21]

Answer:

175 per day

Step-by-step explanation:

4 0
3 years ago
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marrisa got an 85% on her math quiz. she had 34 questions correct .how many questions were on the quiz
xeze [42]

Answer:

40

Step-by-step explanation

34 divided by 85 times 100 equals 40

plz mark me as brainliest :)

6 0
3 years ago
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sweaters already on sale for 20% off the regular price cost $28 when purchased with a promotion coupon that allows an additional
r-ruslan [8.4K]

The original price was $50.

To find this we need to start with the price you paid ($28). We then use this cost to find the pre-coupon price. Since the coupon affords a 20% discount, that means you pay for 80%. To solve this, simply divide the price you paid by the percentage you paid.

$28/.80 = $35.

Now that we have the pre-coupon price ($35), we can use that to find the original price. Again, we'd want to divide that by the percentage you paid for, which is 70%.

$35/.70 = $50

3 0
3 years ago
2 friends share 3 fruit bars equally. How much does each friend get?
gizmo_the_mogwai [7]
1.5 for each friend, plus who eats fruit bars xD
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3 years ago
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