f(x) = -3x2 - 6x +1
Find f(8)


HELP HURRY!!

Answer:

a = 1

Step-by-step explanation:

The important point here is that both lines are horizontal reflections of each other. If we treat the line x = a as a kind of "mirror" for these lines, every point at the same y value on each line is going to be an equal horizontal distance from that "mirror". If that's confusing, think about how, as you pull your hand away from a mirror, your hand's reflection seems to go deeper into it. As you bring it closer, your reflection gets closer too. And when you're touching the mirror, it seems like your hand and its reflection are touching!

We want to find that "touching" point for the two lines, the intersection, because it'll tell us exactly where our "mirror" - more commonly called the axis of symmetry - is. The point of intersection of any two lines is the point where their equations are exactly equal to each other.

Our equations are y = 3x - 5 and y = 1 - 3x, so setting those two equal to each other and solving for x:

[tex]3x-5=1-3x\\6x=6\\x=1[/tex]

This tells us that the two lines intersect at x = 1, which is exactly our axis of symmetry, so a = 1!

Answer:

The answer is -7x + 10

Subtract  4 from 14.

Hoped this helped!

Answer:

divide the diameter by 2

Step-by-step explanation:

Answer:

108 pens

Step-by-step explanation:

Answer:

The scores are as follows:

Caroline Castways = 72

Raleigh Rockets = 24

Step-by-step explanation:

Let c be the Castways score and r be the Raleigh Rocket’s score

Then

According to given statements, the equations will be:

[tex]c+r = 96\\r = \frac{1}{3}c[/tex]

From equation 2

[tex]3r=c[/tex]

Putting c = 3r in equation 1

[tex]3r+r = 96\\4r = 96\\\frac{4r}{4} = \frac{96}{4}\\r = 24[/tex]

Putting the value of r in equation 2

[tex]r = \frac{1}{3}c\\24 = \frac{1}{3}c \\c = 24*3\\c = 72[/tex]

Hence,

The scores are as follows:

Caroline Castways = 72

Raleigh Rockets = 24

Answer:

Y= 5

Step-by-step explanation:

Answer:

y=5

Step-by-step explanation:

13= -2y+8+3y

13= y +8

-8       -8

5= y or y=5

I hope this helps!!

Answer:

3:5

225 overhere is 3

225/3=75

4 x 75=300

300 non-athletes

Step-by-step explanation:

Answer:

Triangle A and C

Step-by-step explanation:

Because sum of the angles in triangle A=179 and also sum of angles in triangle C=179

Answer:

0.0000612

Step-by-step explanation:

Answer: 86 I believe

Step-by-step explanation:

Answer:

cos a = -1.28 and 0.78

Step-by-step explanation:

The question is not properly written. This is the correct question:

If sina×tan(a) = 1/2, find cosa

According to trigonometry identity;

tan a = sina/cosa

sina×tan(a) = sin a * sina/cosa

sin²a/cos a = 1/2

(1-cos²a)/cosa = 1/2

Cross multiply

2(1-cos²a) = cos a

2 - 2 cos²a = cos a

2cos²a + cos a - 2 = 0

Let P = cos a

2P² + P -2 = 0

P = -1 ±√1-4(2(2)/2(2)

P =  -1 ±√1+16/4

P = -1 ±√17/4

P = -1±4.12/4

P = -1-4.12/4 and -1+4.12/4

P = -5.12/4 and 3.12/4

P = -1.28 and 0.78

Since P = cos a

Hence cos a = -1.28 and 0.78

Answer:error

Step-by-step explanation:

An expression is combination of variables, numbers and operators. The factor of expression 0.15c-0.072  is 0.15(c-0.48)

An expression is combination of variables, numbers and operators.

The given expression is

zero point one five times of c minus zero point zero seven two.

Expression 0.15c-0.072

A factor is a number that divides another number, leaving no remainder.

0.15c-0.072

Let us take 0.15 common

0.15(c-0.48)

Hence the factor of expression 0.15c-0.072  is 0.15(c-0.48)

To learn more on Expressions click:

https://brainly.com/question/14083225

#SPJ2

Answer:

D) (0,1) (2,3) (4,5)

Step-by-step explanation:

Explanation

Given Points are  A(0,1) , B(2,3) , C(4,5)

slope of the AB

                  [tex]= \frac{y_{2} -y_{1} }{x_{2}-x_{1} } = \frac{3-1}{2-0} =\frac{2}{2} =1[/tex]

Slope of BC

                [tex]= \frac{y_{2} -y_{1} }{x_{2}-x_{1} } = \frac{5-3}{4-2} =\frac{2}{2} =1[/tex]

Therefore slope of AB and BC are equal

The three points lie on same straight line

The three points are collinear points

Answer:

4(x-4)

4 is the largest common factor

I hope this helps:

Hey there!

For equations like this I usually find the GCF or Factors of the given numbers for both of numbers and factor/solve it from there!

So, I’ll do the same thing for you.

[tex]\bf{4x: 1,2,4,\& \ x}\\ \bf{16: 1,2,4,8}}[/tex]

GCF: [tex]\bf{4}[/tex]

[tex]\boxed{\bf{Answer: 4(x - 4)}}\checkmark[/tex] (Just distribute and it’ll convert back to the equation in your question

Good luck on your assignment and enjoy your da!

~[tex]\frak{LoveYourselfFirst:)}[/tex]

Answer:The answer is 48.23

Answer: Yes

Step-by-step explanation:

(-3, 16) split into place would give you 16= -3-3 + 7. A negative times a negative is always a positive number so, -3 x -3 = 9, 9+7=16

Answer:

9

Step-by-step explanation:

5(9)=45

Answer:

Step-by-step explanation:

a5xc=d45c

according to this equality,

x=5

Answer:

The answer is

[tex] \frac{15}{16} [/tex]

Answer:

terms = 7.6p-7p and 9c-4

coefficients =76, 7, 9 and 4

constant terms= 4

...................

what

Answer:

12 x -7 = -84 12 + (-7) = 5

Step-by-step explanation:

Answer:

63.75

Step-by-step explanation:

12.75 times 5

Answer:

I think 23 yards

Step-by-step explanation:

not confirm

Answer:

x=3

y=1

Step-by-step explanation:

We know that y is basically two less than x, so we can plug that into the second equation:

x+ (x-2) = 4

We can now simplify:

2x-2=4

2x=6

x=3

After finding x we can now find y with any equation (both work):

y= 3-2

y=1

Hope this helped!

Answer:

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(  3 , 1 )

Answer:

what do you mean

Step-by-step explanation:

Answer:

9(10-2)=

90-18=72

11×7-23=54

100-15+23=108

16/8=2

Step-by-step explanation:

prove me wrong

Answer:

15

205

45

Step-by-step explanation:

all arc measures are equivalent to the corresponding angle within the circle

10) 15

11) subtract all other angles from 360 to find missing angle

360= 15+95+45+x

360=155+x

205=x

12) 45

Answer:

Step-by-step explanation:

3 child tickets and 4 adult tickets for $69:

3 adult tickets for $36:

Graph is attached

As per graph, x = 7, y = 12

Child ticket = $7, adult ticket = $12

Answer:

Step-by-step explanation:

Let the number of sides ne n

Sum of interior angles:

Sum of exterior angles:

We have equation below to solve for n: