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EastWind [94]
4 years ago
5

What is the inverse of the function f(x) = 2x + 1?

Mathematics
2 answers:
Tom [10]4 years ago
7 0

Your answser would be A. I just took the test

Dominik [7]4 years ago
5 0
      f(x) = 2x + 1
         y = 2x + 1
         x = 2y + 1
    x - 1 = 2y
       2       2
¹/₂x - ¹/₂ = y

The answer is A.
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What is the slope.of (-3,1) and (2,-2)​
mote1985 [20]

Answer:

3/5

Step-by-step explanation:

m=3/5

slope---3/5

8 0
3 years ago
How many rectangular prisms 8 inches long, 5 inches wide, and 2 inches high can fit into another rectangular prism that measures
tangare [24]

Answer:

20

Step-by-step explanation:

Volume of rectangular prism = length × width × height

Length = 8 inches

Width = 5 inches

Height = 2 inches

Volume of rectanglular prism = length × width × height

= 8 inches * 5 inches * 2 inches

= 80 inches ³

Dimensions of another rectangular prism:

Length = 16 inches

Width = 10 inches

Height = 10 inches

Volume of rectangular prism B = length × width × height

= 16 inches * 10 inches * 10 inches

= 1,600 inches ³

Number of prism A that fits into prism B = Volume of prism B ÷ volume of prism A

= 1,600 inches ³ ÷ 80 inches ³

= 20

Number of prism A that fits into prism B = 20

8 0
3 years ago
What is a simpler form of the following expressions?
nadezda [96]

Answer:

D. 49p² - 64

Step-by-step explanation:

(7p - 8)(7p + 8)

Solving this requires the 'difference of squares' concept which states;

If (a - b)(a + b)

Then the solution must be a² - b²

Considering (7p - 8)(7p + 8) then the answer is;

(7p)² - 8² = 49p² - 64

6 0
3 years ago
Dillard's department store is having a huge sale where everything is 30% off. When you got to the cash register because you were
vlabodo [156]

Answer:

15.75

Step-by-step explanation:

30% of 350=105 15% of 105=15.75

3 0
3 years ago
The cost of electricity in a certain city is $0.08 for each of the first 300kWh (kilowatt-hours) and $0.13 for each kilowatt-hou
Ivahew [28]

Step-by-step explanation:

0.08*300 + 0.13x = 51.95

Multiply thru by 100 to get:

8*300 + 13x = 5195

13x = 5195-2400

13x = 2,795

x = 215 hours

7 0
3 years ago
Read 2 more answers
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