MATHEMATICS HIGH SCHOOL

Which of the following values would complete the ordered pair if the point is on the graph of ƒ(x) = -2x + 3? (-1, ___)

Answers

Answer 1
Answer:

Answer:

the y value is 5. (-1,5)

Step-by-step explanation:

first you plug in -1 to the equation where the x is. f(-1)=-2(-1)+3. then solve with a calculator and you will get 5 as your y value. plug the equation in Desmos.

Answer 2
Answer:

Answer:

the y value is 5. (-1,5)

Step-by-step explanation:

first you plug in -1 to the equation where the x is. f(-1)=-2(-1)+3. then solve with a calculator and you will get 5 as your y value. plug the equation in Desmos.

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HELP ME PLEASE !!!!!!! WILL GIVE 50 ptsThe function f(x) = –x2 + 18x – 72 models the daily profit, in dollars, a gym makes for selling memberships, where x is the number of memberships sold, and f(x) is the amount of profit. Part A: Determine the vertex. What does this calculation mean in the context of the problem? (5 points) Part B: Determine the x-intercepts. What do these values mean in the context of the problem? )

Answers

Vertex formula = -b/2a
-18/1 = 18.
However, this is just the x value, the vertex is (x,y)
-18*2 + 18(18) - 72 = 576
A) (18,576)
576 dollars made with 18 members is the highest amount made in one day.

B) (12,0) (6,0)

B) (12,0) (6,0) .....

what is the least common denominator of the rational expressions below? 1/x^2-4/3x^2+15

Answers

Answer:

3x^2(x+5)

Step-by-step explanation:

Solve using
elimination
X- 2y = 3
3x - y = 2

Answers

Answer: x = 1/5 and y= -7/5

Step-by-step explanation: Let's solve your system by elimination.

Multiply the first equation by -3,and multiply the second equation by 1.

-3 (x - 2y = 3)

1 (3x - y = 2)

Becomes:

-3x + 6y = -9

3x -y = 2

Add these equations to eliminate x:

5y = -7

Then solve 5y = -7

5y/7 = -7/5

y = -7/5

Now that we‘ve found y, let’s plug it back in and solve for x.

Write down an original equation:

x - 2y = 3

Substitute -7/5 for y in x - 2y = 3:

x - 2 (-7/5) = 3

x + 14/5 = 3

x 14/5 + -14/5 = 3 + -14/5 (Add (-14)/5 to both sides)

x = 1/5

Answer:

x = 1/5 and y = -7/5

Solve for h if d=1/2hw

Answers

d = 1/2hw
2dhw = 1
h = 1/2dw

i am a mathematics teacher. if anything to ask please pm me

d = 1/2 hw

hw = 2d

h = 2d/w

Geometry A Problem! Help! Line AC

Answers

the formula is:  (AB +BC) * BC = EC*DC
 now fill in the numbers that are given:

(AB +6)*6 = 12*5

(AB+6)*6 = 60

6AB +36 = 60

6AB = 24

AB = 24/6

AB = 4

AC = AB +BC
AC = 4 + 6

AC = 10

Solve for x.
5x - 6 = 4x + 8

Answers

5x - 6 = 4x + 8
-4x        -4x

x - 6 = 8
    +6   +6

x = 14

Answer: x = 14
First let's get X to one side by subtracting 4x from both sides. (5x-4x) -6 = 8. x-6=8. Now we add 6 to both sides to isolate "x". x=8+6=14. Our answer is x=14.
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