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Snowcat [4.5K]
3 years ago
5

How many roots does the equation 3x² = 1 - 7x have and what is the nature of the roots

Mathematics
1 answer:
AnnyKZ [126]3 years ago
7 0

Answer:

Step-by-step explanation:

Rewrite this quadratic in standard form:  3x^2 + 7x - 1.

The coefficients of x are {3, 7, -1}, and so the discriminant is b^2 - 4ac, or

7^2 - 4(3)(-1), or 49 + 12, or 61.  Because the discriminant is positive, this quadratic has two real, unequal roots

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Find the solution set
Marianna [84]
Hi!

Whatever we do to the inequality, we have to do it to both sides.

Subtract 14 from both sides
14 - 14 - 3x < -1 - 14
-3x < -15
Divide by -3 on both sides
-3x/-3 < -15/-3
x < 5
Because we divided by a negative number, the equality sign flips.
x > 5
^ the answer

Hope this helps! :)
4 0
3 years ago
Convert 13 over 100 to a decimal
harina [27]
Solve:-

13 over 100 = 13/100

To turn a fraction to a decimal, divide numerator by denominator:- 

13 ÷ 100 = 0.13

13/100 as a decimal is 0.13.
8 0
3 years ago
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A 64-foot tall monument casts a shadow 16 feet long. If Kyle is stsnding nearby and is 6'3 tall, find the length of his shadow.​
Helen [10]

Answer: Length of his shadow is 18 feet.

Step-by-step explanation:

Since we have given that

Length of tall monument = 64 foot

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So, according to question, we get that

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Hence, length of his shadow is 18 feet.

3 0
3 years ago
PLEASE HELP HELP ME HELP ME HELP ME ITS MATH EZ STUFF
anyanavicka [17]

Answer:

Bruh your in high school yo know this stuff just make everything a decimal to get your answer. Lol you really forgot this?

Step-by-step explanation:

3 0
2 years ago
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Which triangle congruence criteria will determine congruence for the given 1 point
posledela
SAS, two sides are congruent and the angles are equal
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