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beks73 [17]
3 years ago
14

What is the line symmetry for the graph of y= -3x^2+12x-11

Mathematics
2 answers:
scoray [572]3 years ago
8 0
The answer to your question is x=2. what you want to do is find both the x values for your quadratic equation and then add them and divide by 2.
____ [38]3 years ago
7 0

Answer:

The line of symmetry is x=2

Step-by-step explanation:

Given:y=-3x^2+12x-11

We are given a quadratic equation and to find the line of symmetry.

As we know the line of symmetry of parabola passes through the x value of vertex.

If vertex of parabola is (h,k) then equation of line of symmetry x=h

So, first we find the vertex of parabola.

For equation: y=ax^2+bx+c

x=-\dfrac{b}{2a}

For given equation, a=-3 and b=12

Therefore, x=-\dfrac{12}{2(-3)}

x=2

Hence, The line of symmetry of given parabola is x=2

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Denis examined the records of the clients who had joined his gym more than six months ago, and he found these statistics: \begin
drek231 [11]

Answer:

.2

Step-by-step explanation:

This is a conditional probability question. So it's asking you to find the probability that a client remained a member for more than 6 months, given that the client joined in January - which is formatted as P = (.5 | .12). You would then divide the chance of being over 6 months AND in January over the chance of being a member for over six months. ( .024 / .12) There, you would get .2 as your answer.

8 0
3 years ago
Use the factor theorem to determine whether the first polynomial is a factor of the second polynomial
Diano4ka-milaya [45]

Answer:

not a factor

Step-by-step explanation:

If (x - 3) is a factor then f(3) = 0

f(x) = 2x² - 4x + 30

f(3) = 2(3)² - 4(3) + 30 = 18 - 12 + 30 = 36 ≠ 0

Since f(3) ≠ 0 then (x - 3) is not a factor of f(x)

3 0
3 years ago
Which expression can be used to find the area of the square? Question 4 options: 2(6.4+6.4) 6.4² 6.4×2 2(6.4×6.4)
Nimfa-mama [501]
Option 2 => 6.4^2
Because area of a square = side *side or side^2
Hope this helps u..!!!
6 0
3 years ago
300 ml over 15 min is what rate of ml per hour
Mama L [17]

Answer:

1200 ml per hour

Step-by-step explanation:

To compute what rate is 300 ml over 15 mins as a rate of ml per hour, we do a rule of 3, using a variable x as that amount of ml we don't know yet. We should have everything in the same units, so instead of writing 1 hour we write 60 minutes:

\frac{300~ml}{15~min}=\frac{x~ml}{60~mins}

Now we solve for x:

\frac{300~ml}{15~min}\cdot 60~mins=x~ml

\frac{18000~ml}{15} =x~ml

1200~ml =x~ml

And so, now that we know the value of x, the rate we wanted to find is

\frac{1200~ml}{60~mins}

Which is just 1200 ml per hour.

3 0
3 years ago
Solve the equation 4m = 28 for m.<br><br> A. 3<br> B. 4<br> C. 5<br> D. 7
Paha777 [63]
D 28/4=7 that is the answer for the question
3 0
3 years ago
Read 2 more answers
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