if (a, -12) is a point on the graph of y=x^2-7x, what is a?

Answers

Answer 1

If so, you can insert that y = -12 and solve for a which will equate to x.

[tex]-12=x^2-7x[/tex]

[tex]x^2-7x+12=0[/tex]

[tex](x-3)(x-4)=0\implies a_1=3,a_2=4[/tex]

So a could be 3 or 4 (has two solutions).

Hope this helps.


Related Questions

You have $250.
You spend 45% of that.
how much is left?

Answers

Answer:

$137.5

Step-by-step explanation:

45/100 X 250

= 11250/100 = 112.5

250-112.5 = 137.5

or

100%-45%=55%

55/100X250

=13750/100 = 137.5

Select the expression that makes the equation true.
(9*10^9)*(-2*10^-3) =

Choose 1 answer
(A
-18*10^6
(B
-18*10^5

18*10^-6
(D
18*10^-5

thiis is probably siimple but iim beiing kiinda dumb and siick rn lol TwT

Answers

Answer:

A. -18*10^6

could you also mark me as brainliest?

IMPORTANT!

Write a paragraph proof for the following conjecture:
Given: m∠1 +m∠2=m∠4
Prove: m∠3 +m∠1 +m∠2=180°

Answers

Answer:

hi

Step-by-step explanation:

Answer:

I have a question do you have a screen shot and maybe I can help but if you dont ill still help :)

Step-by-step explanation:

Which graph or table does NOT represent a function?

Answers

Answer:

H

Step-by-step explanation:

THERES TWO 4'SSSSS

(4,3) (7,2) find the slope between the 2 points

Answers

Answer:answer is -1/3

Step-by-step explanation:

Use the slope formula: y2-y1/x2-x1

Angle θ is in standard position. If (8, -15) is on the terminal ray of angle θ, find the values of the trigonometric functions.

Answers

Your question: Angle θ is in standard position. If (8, -15) is on the terminal ray of angle θ, find the values of the trigonometric functions.

Answer:

sin(θ) =  -15/17

cos(θ) =  8/17

tan(θ) =  -15/8

csc(θ) =  -17/15

sec(θ) =  17/8

cot(θ) =  -8/15

Answer:

a

Step-by-step explanation:

Can someone help me on number one and 4? Thanks! :)

Answers

Answer:

Step-by-step explanation:

I’m pretty sure it’s b

HELLPP HURRY PLZZZZZZZ

Answers

Answer:

Answer

The answer is 130 because 130+70)180

Help. I need this done by next period.​

Answers

Answer:

not good with graphs sorry

Step-by-step explanation:

4 + 3(x + 5) hhhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeeeeeeeeellllllllllllllllllllllllllllllllppppppppppppppppppppppppppppppppppppp

Answers

Answer:

3x + 19

Step-by-step explanation:

There are 39 calories in 12 fluid ounces of a tea drink. Based on this information, how many calories are in 36 ounces of the tea drink.

Answers

Answer:

117 calories

Step-by-step explanation:

36 divided by twelve is 3.  39 times 3 is 117, so there is 117 calories in the tea drink.

what is the difference between /-3/ and -3

Answers

Answer:

3

Step-by-step explanation:

/-3/=3

Chose 1 answer:
A (1 1/6,-3 1/6)
B (1 1/3,-3 1/3)
C (3 1/6, -8 1/6)
D (3 1/3, -8 1/3)

Answers

Is it b I’m sorry if I’m wrong

100 POINTS!!!!!!!!!!! ( I NEED FAST ANSWERS ) What type of model fits the data collection below?
{(-2,5), (-1,2), (0, 1), (1, 2), (2,5)}

Answers

Answer:

21

Step-by-step explanation:

Translate the equation and solve: Two times the difference of a number
and 9 is 12. *
O 2x - 9 = 12; x = 10.5
0 2x - 9 = 12; x = 15
2(x - 9) = 12; x = 1.5
2(x - 9) = 12; x = 15

Answers

Answer:

the last option

2(x-9)=12;x=15

Answer:

2(x-9) = 12; x = 15

Step-by-step explanation:

Have a nice day

True or False: If two angles are vertical, then they are congruent

Answers

Answer:

True

Step-by-step explanation:

Vertical angles should always be congruent.

I hope this helps

if you could, feel free to mark me Brainliest it would be much appreciated :D

The statement "if two angles are vertical, then they are congruent" is true.

Vertical angles are formed when two lines intersect.

When two lines intersect, they create four angles at the intersection point.

Vertical angles are the angles that are opposite each other when two lines intersect.

These angles have equal measures, which means they are congruent.

If there are two vertical angles, their measures will be the same, and therefore, they are congruent.

Hence, the statement "if two angles are vertical, then they are congruent" is true.

To learn more on Angles click:

https://brainly.com/question/28451077

#SPJ6

What is the result of subtracting the second equation from the first?
8x-4y=-4
-3x+4y=5

Answers

Answer: -11x+8y=9

Explanation:

F(x)=-3x+2 find f(6)

Answers

Answer:f=1 over 4x + 1 over 12 y

Step-by-step explanation:

Let's solve for f.

y=−3x+2f(6)

Step 1: Flip the equation.

12f−3x=y

Step 2: Add 3x to both sides.

12f−3x+3x=y+3x

12f=3x+y

Step 3: Divide both sides by 12.

12f

12

=

3x+y

12

f=

1

4

x+

1

12

y

Find the simplified form of the expression. Give your answer in scientific notation.

(7 × 10–4)(9 × 10–10)

Answers

Answer:

5280

Step-by-step explanation:

it might look not professional but trust this is the answer

What is the answer?
A?
B?
C?
D?

Answers

Answer:B or C

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

A person is shopping for cereal, oranges, and eggs at a grocery store.

Which of the following is an input in this scenario?
A. The number of cereal boxes purchased
B. The cost per pound of oranges
C. The amount paid for eggs

Which of the following is an output in this scenario?
A. The number of eggs in a carton
B. The price of the cereal boxes
C. The amount paid for oranges

Answers

Answer: a

B

Step-by-step explanation:

Be

ILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST
indentify a line that a rectangle could be reflected over to result in a rectangle that has the same vertices as the original

Answers

Answer:

x = 6

Step-by-step explanation:

hsjzbskbsksbssjbsjs

Answer:

y=6

Step-by-step explanation:

I did it mentally.

6 is what percentage of 10?

Answers

Answer: 60 percent

Step-by-step explanation: Your welcome!

Answer:

60 percent

Step-by-step explanation:

Think of it as, money if you spend 6 dollars of the 10 you have. That mean you have spent 60 percent of you money.

PLEASE HELP ME!!!

One cup has approximately 0.23 liters. How many liters are in 6 cups?

Answers

Answer:

6 * 0.23 = 1.38

Step-by-step explanation:

since one is 0.23 to get the product of six you must multiply times that amount.

The midpoint of AB is M(3, -1). If the coordinates of A are (5,1), what are the
coordinates of B?

Answers

Given parameters:

Midpoint of AB =  M(3, -1)

Coordinates of A = (5,1)

Unknown:

Coordinates of B = ?

Solution:

To find the mid point of any line, we use the expression below;

              [tex]x_{m} = \frac{x_{1} + x_{2} }{2}[/tex]    and [tex]y_{m} = \frac{y_{1} + y_{2} }{2}[/tex]

where [tex]x_{m}[/tex]  and [tex]y_{m}[/tex] = coordinates of the mid points = 3 and -1

   x₁  = 5 and y₁ = 1

  x₂ = ?  and y₂ = ?

Now let us input the variables and solve,

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

    5 +  x₂  = 6                          -2 = 1  + y₂

            x₂ = 1                             y₂ = -2 -1 = -3

The coordinates of B = 1, -3

Convert 35 pounds of candy to stones. (1 stone = 14 pounds)

Answers

Answer:

2.4 stone

Step-by-step explanation: i think i did it in my head

Answer:

2.4

Step-by-step explanation:

Mrs. Cipollone purchased 2.5 pounds of Granny Smith apples to make apple pies. If each pound
costs $1.35, how much did Mrs. Cipollone spend on the apples?

Answers

Answer:

I belive the answer is 3.375

Step-by-step explanation:

i belive the answer is 3.375 because 2.5*1.35=3.375

Answer:

3.38 multiplication

Step-by-step explanation:

Solve the following quadratic by factoring. X2-5x=14

Answers

Answer:

x=−2 or x=7

Step-by-step explanation:

Let's solve your equation step-by-step.

x2−5x=14

Step 1: Subtract 14 from both sides.

x2−5x−14=14−14

x2−5x−14=0

Step 2: Factor left side of equation.

(x+2)(x−7)=0

Step 3: Set factors equal to 0.

x+2=0 or x−7=0

x=−2 or x=7

Twenty more than half a number is 70. What is the number

Answers

Answer:

100

Step-by-step explanation:

we start by subtracting 20 from 70, which is 50

we double 50 to get 100

Answer:

n =  100

Step-by-step explanation:

20 + 1/2n = 70

subtract 20 from both sides

1/2n = 50

multiply both sides by the reciprocal of 1/2 which is 2

n = 100

hope this helps

is 3 x 10 to the 5th power real, imaginary, rational, or irrational?

Answers

Answer:

real

Step-by-step explanation:

300000

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