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likoan [24]
3 years ago
8

How many x-intercepts are there in y = –3x2 + 4x + 4

Mathematics
2 answers:
IRINA_888 [86]3 years ago
8 0
You can factor it to find the answer:

<span>–3x^2 + 4x + 4 
</span>–(3x^2 - 4x - 4)
–(3x + 2)(x - 2)

x=-2/3 or 2, which means that there are  x intercepts, at -2/3 and 2.
Yakvenalex [24]3 years ago
7 0
Y = -3x^2 + 4x + 4

Educated guess: There may be about 2 x - intercepts in the equation.
You might be interested in
Pls help will give brainliest and pls give explanation
Zielflug [23.3K]

Answer:

  -4, 2, 8, 14, 20

Step-by-step explanation:

The rule is called a "position to term" rule. That means the word "position" is being used to identify the location of a term in the sequence. The first term is in position 1, for example. Using the rule that the position is multiplied by 6, then 10 is subtracted, we find the terms to be as follows.

In position 1, the term is ...

  1×6 -10 = -4

In position 2, the term is ...

  2×6 -10 = 2

In position 3, the term is ...

  3×6 -10 = 8

In position 4, the term is ...

  4×6 -10 = 14

In position 5, the term is ...

  5×6 -10 = 20

The first 5 terms are -4, 2, 8, 14, 20.

8 0
3 years ago
What are the positive and negative square roots of 121/4900 in fraction form?
faust18 [17]

In this question , we have to find positive and negative square roots of

\frac{121}{4900}

Square root always occurs in pair, one is positive and other is negative.

And square root of 121 is 11 and square root of 4900 is 70.

Therefore square roots of

\frac{121}{4900}

are

-\frac{11}{70} , \frac{11}{70}

3 0
3 years ago
Pls explain and provide calculation thank you
Sauron [17]

Answer:

At least 18 solid balls

Step-by-step explanation:

<h3>Volume of rectangular tank:</h3>

    \sf \boxed{\bf Volume \ of \ rectangular \ tank = length* width * height}

Volume of empty space = Volume of the full tank - Volume of the tank till the water.

                                        = 20*10*13 - 20*10*11

                                        = 2600 - 2200

                                        = 400 cm³

Volume of 1 solid ball = 23 cm³

Number of solid ball to make the tank overflow = 400 ÷ 23

                                                                               ≈ 18 solid balls

8 0
1 year ago
B ÷ -2 =5 will it be negative or positive
Reil [10]
The answer is positive final answer
5 0
3 years ago
Read 2 more answers
Can someone please help me with the questions in the images. if they are correct i will mark as brainliest
valentina_108 [34]

Answer:

6) x=9.75

10) Triangle OMN ~ Triangle ODK; SSS ~

11) SSS ~ theorem

12) SSS ~ theorem

Step-by-step explanation:

For #6, since the polygons are similar, then it must mean AD is congruent to JM and CD is congruent to LM. Now we can set up the proportion 39/20=x/5 and solve. Solving for x gets us x=9.75, so C is the correct choice

For #10, there's no information about angles whatsoever in the diagram, so B and C must be wrong. D must be wrong as well because if the triangles weren't similar, then why is OJ ~ JM and OK ~ KN? So thus, the triangles are similar by SSS.

For #11, this is sort of a no-brainer because there's no mention of angles, so D must be correct.

For #12, same concept, no mention of angles, all sides are similar to their respective sides of the different triangles, so A is correct.

5 0
3 years ago
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