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3 years ago

Find the discriminant and the number of real roots for the equation. 4x^2+12x+9=0

Mathematics

1 answer:

netineya [11]3 years ago

5 0

Answer:

Step-by-step explanation:

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HELP ME PLZ !!!!!!!!

nekit [7.7K]

Answer:

LM=JM

Step-by-step explanation:

If Jk=Lk Maybe that K was not 90 This means that the triangles are not congruent
if it was K = 90 maybe Jk ≠ Lk and that means the two triangles are not congruent
if LM = GM و MK = MK It means that the two triangles are congruent

8 0

3 years ago

What type of function is represented by the graph below?

Ronch [10]

Answer:

B. step I think

Step-by-step explanation:

7 0

3 years ago

M is between N and O . MO = 15, and MN = 76. Find NO

I am Lyosha [343]

Answer:

Step-by-step explanation:

N___________________<u>M</u>_______O

76 15

NO = MN + MO = 76 + 15 = 91

8 0

3 years ago

2 2/3 + 12 6/8 how do I work this

barxatty [35]

Answer:

$\large\boxed{2\dfrac{2}{3}+12\dfrac{6}{8}=15\dfrac{5}{12}}$

Step-by-step explanation:

$2\dfrac{2}{3}+12\dfrac{6}{8}=2\dfrac{2}{3}+12\dfrac{6:2}{8:2}=2\dfrac{2}{3}+12\dfrac{3}{4}\\\\\text{Find}\ LCD:\\\\\text{List of multiples of 3:}\ 0,\ 3,\ 6,\ 9,\ \boxed{12},\ 15,\ ...\\\text{List of multiples of 4:}\ 0,\ 4,\ 8,\ \boxed{12},\ 16,\ ...\\\\12=3\cdot4\\\\\text{therefore}\\\\\dfrac{2}{3}=\dfrac{2\cdot4}{3\cdot4}=\dfrac{8}{12}\\\\\dfrac{3}{4}=\dfrac{3\cdot3}{4\cdot3}=\dfrac{9}{12}\\\\2\dfrac{2}{3}+12\dfrac{3}{4}=2\dfrac{8}{12}+12\dfrac{9}{12}=(2+12)+\dfrac{8+9}{12}=14+\dfrac{17}{12}\\\\=14+1\dfrac{5}{12}=15\dfrac{5}{12}$

3 0

3 years ago

The Jaxon High School prom committee has 100 thumb drives to sell in a fundraiser. The function f(x) = 8x – 200 models their inc

Alina [70]

Answer:

25 = x

Step-by-step explanation:

Based on the equation we see that the thumb drives cost $200 which is why that is being subtracted. To calculate the break-even number of sales we need to make a total of 200 to cover the costs. We calculate this by matching the equation to 0 and solving for x...

0 = 8x - 200 ... add 200 on both sides

200 = 8x ... divide both sides by 8

25 = x

Finally, we can see that the committee will break even after selling 25 thumb drives which would make them $200 to cover all of their costs.

5 0

2 years ago