Slope = -4, passing through (7, 4)

Answers

Answer 1

Answer: I am guessing you want the equation, so here we go.
the equation of a line is:
y = mx + c
To find c, plug in the given
y = 4
x = 7
m = -4

4 = -4(7) + c
4 = - 28 + c
take -28 to the other side
4 = -28 + c
+28 +28
32 = c

equation of this line:
y = -4x + 32

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

Answers

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: $y=ax^2+bx+c$

$x=-(b)/(2a)$

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

Therefore, $x=-(12)/(2(-3))$

$x=2$

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

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.

Simplify expression:
3^{−(4a+1)} −3^{−(4a−1)} + 3^{−4a}

Answers

$3^(-(4a+1))-3^(-(4a-1)) + 3^(-4a) =3^(-4a-1 )-3^(- 4a+1 ) + 3^(-4a)=\n \n=3^( -4a )*3^(-1)-3^( - 4a )*3^1 + 3^(-4a) =3^(-4a)(3^(-1)-3+1)=3^( -4a )*((1)/(3)-2)=\n \n=3^( -4a )*(-1(2)/(3))=3^( -4a )*(-(5)/(3))=3^( -4a )*(-5)*(1)/(3) =-5 *3^( -4a )*3^(-1)=\n \n =-5 *3^( -4a +(-1))=-5 *3^( -4a -1)$

The sum of 15 and two times a number 29 what is the the number?

Answers

Let the number = x

It would be: 2x+15 = 29

2x = 14

x = 7

If an object is dropped from a height of 200 feet, the function h(t)=-16t^2=200 gives the height of the object after t seconds. Approximately, when will the object hit the ground? (1point)A.200.00 seconds
B.184.00 seconds
C.3.54 seconds
D.0.78 seconds

Answers

Hello,
Answer C
h(t)=0=-16t²+200==>t=3.53533...(s)

I need major help quickly

Answers

Answer: Hi! The last answer is correct.

4(2) + 4 isn't equal to nine, so it doesn't make sense that Sadie could have scored 4 goals.

Hope this helped!

Answer:

the answer is the last one because if you do 4 times 2 and then add four it would add up to way more than 9.

Step-by-step explanation:

What is 7d+12-4d-3=? and how do i figure it out ive been stuck for 4 hours on it help?

Answers

We must simplify the expression. Simplify the like terms. 7d-4d=3d and 12-3=9. Put them together. Our answer is 3d+9.

Simplify them like terms 7d-4d=3d and 12-3=9 put them together then the answer is 3d+9

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