1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ehidna [41]
3 years ago
15

Nine times the input minus seven is equal to the output.Which of the following equations describe this function?

Mathematics
1 answer:
arsen [322]3 years ago
8 0

Consider the function y = f (x), the element 'x' is the input of the function, and 'y' is the value of the function or the output.

Now, we have to determine the equation for " Nine times the input minus seven is equal to the output"

Since, the input of the function refers to the variable 'x' and output of the function refers to the variable 'y'.

The required equation is:

( 9 \times x)-7 = y

So, 9x-7 = y

Therefore, 9x-7=y is the required equation.

Therefore, Option C is the correct answer.

You might be interested in
Graph y = -2x + 5 and y<br> and y = - 1 2 - 3<br> Are the lines parallel, perpendicular, or neither?
navik [9.2K]
They are neither,they intersect but not at a 90 degree angle
7 0
3 years ago
How do i solve quadratics and quadratic formula
Murljashka [212]

<u>Step-by-step explanation:</u>

Multiply the first and last coefficient

Find a pair that has the product of ac (above) and the sum of b

Replace the b-term with the pair.

Divide the four terms into two-terms on the left side and two terms on the right side and factor out the common terms from each side.

This is reverse of the distributive property so the terms factored out (on the outside of the common term) combine to create a factor and the common term is the other factor.  

Set each factor equal to zero and solve for the variable.

***************************************************************************************

1a. Answer: a = 1/2      a = -1

2a² + 3a + 1 = 0      → ac=2, b = 3    → use 1, 2  (product is 2 & sum is 3)

2a² + 2a + 1a + 1 = 0

2a² + 2a     +1a + 1        = 0

2a(<u>a + 1</u>)      +1(<u>a + 1</u>)      = 0

(2a + 1)(a + 1) = 0

2a + 1 = 0       and         a + 1 = 0

       a = 1/2    and               a = -1

**************************************************************************************

1b. Answer: y = -5/2    y = -5

2y² + 5y - 25 = 0  → ac=-50, b = 5 → use 10, -5  (product is -50 & sum is -5)

2y² + 10y - 5y - 25 = 0

2y² + 10y      - 5y - 25        = 0

2y(<u>y + 5</u>)      -5(<u>y + 5</u>)      = 0

(2y - 5)(y + 5) = 0

2y + 5 = 0       and         y + 5 = 0

       y = -5/2    and               y = -5

**************************************************************************************

1c. Answer: y = 5     y = 1/2

2y² - 11y + 5 = 0  → ac=10, b = -11 → use -1, -10  (product is 10 & sum is -11)

2y² - 1y - 10y + 5 = 0

2y² - 1y       -10y + 5        = 0

y(<u>2y - 1</u>)      -5(<u>2y - 1</u>)      = 0

(y - 5)(2y - 1) = 0

y - 5 = 0       and         2y - 1 = 0

     y = 5       and               y = 1/2

4 0
3 years ago
I need help ASAP THANK YOU
Anestetic [448]

Answer:

see explanation

Step-by-step explanation:

To prove that BC ≅ AD, that is that BC = AD

You would need to prove the lengths are the same.

4 0
3 years ago
Read 2 more answers
Complete this statement:<br> 45ax2 + 27ax + 18a = 9a(
mihalych1998 [28]

Answer:

9 a (5 x^2 + 3 x + 2)

Step-by-step explanation:

Simplify the following:

45 a x^2 + 27 a x + 18 a

Factor 9 a out of 45 a x^2 + 27 a x + 18 a:

Answer: 9 a (5 x^2 + 3 x + 2)

7 0
2 years ago
Clem Colfax had $10 to buy groceries. He needed milk costing 70 cents a carton, bread costing 60 cents a loaf, breakfast cereal
zaharov [31]
Cost of milk per carton = $ 70 cents = 70/100 = $0.7
Cost of bread per loaf = $60 cents = 60/100 = $0.6
Cost of cereals per box = $50 cents = 50/100 = $0.5
Cost of meat per pound = $1.50

If x is the number of cartons of milk bought, then
Number of loafs = x/2
Number pf boxes of cereals = x/2 +1
Number of pounds of meat = x/2 +1

Therefore,
0.7*x + 0.6*x/2 + 0.5 (x/2+1) + 1.5 (x/2+1) = 10
0.7x + 0.3x + 0.25x + 0.5 + 0.75x + 1.5 = 10
2x + 2 =10
2x = 8
x = 4

Substituting;
Milk cartons = 4
Number of bread = 4/2 = 2
Boxes of cereals = 2+1 = 3
Pounds of meat = 3
8 0
3 years ago
Other questions:
  • After the expression (x^16)3/4 is simplified as much as possible, x is raised to what exponent?
    14·1 answer
  • Write the equations of teh circle in standard form
    12·1 answer
  • flower bed is in the shape of a triangle with one side twice the length of the shortest​ side, and the third side is 15 feet mor
    13·1 answer
  • A dime has a radius of 8 1/2 millimeters. Find the circumference of a dime to the nearest tenth.
    11·1 answer
  • Determine the nature of the roots: 4x^2 + 32x + 64 = 0
    13·2 answers
  • NEED IMMEDIATE MATH HELP!!!! WILL MAKE BRAINLIEST!!!
    12·1 answer
  • Write the explicit formula that represents the geometric sequence -2, 8, -32, 128
    5·1 answer
  • Please help with test offering big points pt 4
    13·1 answer
  • Please take a look at the picture for the question
    8·1 answer
  • What is the value of the expression below? (8^2/3)^1/2<br> A. 4<br> B. 1<br> C.2<br> D.8
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!