f(x) = -3x2 - 6x +1
Find f(8)
HELP HURRY!!
Answers
Answer:
not totally sure if this is right but if thats one of the answer choices then i think it is f(x)=-95 (so srry if i'm wrong)
Related Questions
help pls , thank you for all who comment ! <3
Answers
Answer:
I think 23 yards
Step-by-step explanation:
not confirm
Which triangles are similar?
123
13
112
670
0
5
Triangle A
36
139
15
28
B
17
670
15
Triangle c
Triangle B
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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
Is the ordered pair (-3, 16) a solution for y=-3x + 7?
Answers
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
Anwser this question for brainlist
Answers
3(3)+8= 17 7(3)+9=30 17+30=47
10(3)+17=47
47=47
how do yo do this question I have to
Solve the System by Substitution:
y = x-2
x + y = 4
Answers
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:
x = 3, y = 1Step-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 )
Hoped this helped :}sina×tga=1/2, cosa=?
Answers
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
Solve *plz be quick*
Answers
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
54
108
2
(Equations used to solve are listed in photo)
The ratio of athletes to non-athletes
at Browns Primary School is 3:4. If
there are 225 athletes in the school,
how many non-athletes are there?
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Answer:
3:5
225 overhere is 3
225/3=75
4 x 75=300
300 non-athletes
Step-by-step explanation:
What is 4x - 16? Please show how you solved
Answers
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]
If u are selling 5 cans of soup for $12.75 how much is each of them
Answers
Answer:
63.75
Step-by-step explanation:
12.75 times 5
HELP 80 POINTS DUE SOON
Answers
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!
Identify the number of terms, the coefficient(s), and the
term(s) of the expressions below.
7. 6p - 7p + 9c - 4
terms:
Coefficients:
Constant terms
Answers
Answer:
terms = 7.6p-7p and 9c-4
coefficients =76, 7, 9 and 4
constant terms= 4
In Gwinnett, the sales tax is 6%. You buy a watch that costs $45.50. What is the TOTAL cost including tax?
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Answer:The answer is 48.23
Find a pair of integers with a product of -84 and a sum of 5.
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Answer:
12 x -7 = -84 12 + (-7) = 5
Step-by-step explanation:
If you have 40.495 / 1,000,000 - 4,000+ 6,000,900
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...................
what
18. The sum of the measures of the interior angles of a convex polygon is ten times the sum of the measures of its exterior
angles. Find the number of sides of the polygon.
Answers
Answer:
22Step-by-step explanation:
Let the number of sides ne n
Sum of interior angles:
180(n - 2)Sum of exterior angles:
360We have equation below to solve for n:
180(n - 2) = 10*360n - 2 = 20n = 22Cheryl took her family to the movies and purchased 3 child tickets and 4 adult tickets for $69. Tyrone purchased 3 adult tickets for $36. Let x represent the cost of a child ticket (in dollars) and y represent the cost of an adult ticket (in dollars). Use a graph to find the cost of a child movie ticket and the cost of an adult movie ticket.
Answers
Answer:
Child ticket = $7, adult ticket = $12Step-by-step explanation:
3 child tickets and 4 adult tickets for $69:
3x + 4y = 693 adult tickets for $36:
3y = 36Graph is attached
As per graph, x = 7, y = 12
Child ticket = $7, adult ticket = $12
Lydia can paint 5/8 of a room in 2/3 of an hour. What is her unit rate?
[tex] \frac{10}{11} [/tex]
[tex] \frac{15}{16} [/tex]
[tex] \frac{7}{11} [/tex]
[tex] \frac{5}{12} [/tex]
Answers
Answer:
The answer is
[tex] \frac{15}{16} [/tex]
A forest covers 49,000 acres. A survey finds that 0.3% of the forest is old-growth trees. How many acres of old-growth trees are there?
Answers
Answer:
0.0000612
Step-by-step explanation:
Answer: 86 I believe
Step-by-step explanation:
13 = -2 ( y - 4 ) + 3y
Answers
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!!
Is that the real answer at the top and what’s the Raleigh Rocket’s score ?
Answers
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
Original quantity: 10 New quantity: 16
Answers
Answer:
what do you mean
Step-by-step explanation:
-7x+ 14-04. I need helppp plsss
Answers
Answer:
The answer is -7x + 10
Subtract 4 from 14.
Hoped this helped!
Factor out the coefficient of the variable term.
The expression 0.15c-0.072 factored is: ?
Answers
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)
What is Expression?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
i need help!!!!!!!!!
Answers
Isolate the variable by dividing each side by factors that don't contain the variable.
So your answer is S=5
What is the equation to find the radius of a cylinder? (Just the radius)
Answers
Answer:
divide the diameter by 2
Step-by-step explanation:
If abc=dec, b=5x and e = 45
What is x?
Answers
Answer:
9
Step-by-step explanation:
5(9)=45
Answer:
Step-by-step explanation:
a5xc=d45c
according to this equality,
x=5
48 pens are packaged in 4 boxes.
how many pens are packaged in 9 boxes?
Answers
Answer:
108 pens
Step-by-step explanation:
I need help who can help me with this ?
Answers
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
In which choice do all three points lie on the same straight line?
A. (0,0) (1, 1) (2, 4)
B. (5, 1) (-3,0) (-1,2)
C. (2, 10) (4.9) (5,8)
D. (0.1) (2,3) (4,5)
Answers
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