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Juli2301 [7.4K]
3 years ago
10

Select the correct answer(click the photo)

Mathematics
1 answer:
MatroZZZ [7]3 years ago
3 0

Answer:

B.

General Formulas and Concepts:

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define function</u>

f(x) = 8x + 4

<u>Step 2: Prep</u>

  1. Rewrite:                         y = 8x + 4
  2. Swap <em>x</em> and <em>y</em>:               x = 8y + 4

<u>Step 3: Find Inverse (Solve for </u><em><u>y</u></em><u>)</u>

  1. Subtract 4 on both sides:                    x - 4 = 8y
  2. Divide both sides by 8:                       (x - 4)/8 = y
  3. Rewrite:                                                 y = (x - 4)/8
  4. Rewrite:                                                f⁻¹(x) = (x - 4)/8
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Answer:

6 miles

Step-by-step explanation:

60 miles : 5 inches

12 miles  : 1 inch

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whatever you do to one side of the ratio you have to do to the other.

to get from 1 to a 1/2 you divide by 2, so you do 12 divided by 2 which is 6.

6 0
3 years ago
If a car can travel 220 miles on 12 gallons of gas, how many gallons
vampirchik [111]

Set up a ratio of known to unknown:

Let X = the amount of gas needed for 500 miles:

220/12 = 500/x

Cross multiply:

220x = 6000

Divide both sides by 220:

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4 0
3 years ago
Can anyone help? I’ll make sure to give Brainly :) thank you sm !
Nuetrik [128]

Answer:

Is this the full question?

3 0
3 years ago
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You want to estimate the mean amount of time college students spend on the Internet each month. How many college students must y
KonstantinChe [14]

Answer:

752.95

Step-by-step explanation:

Data provided in the question

The standard deviation of population = 210

The Margin of error = 15

The confidence level is 75%, so the z value is 1.96

Now the required sample size is

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3 years ago
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viva [34]

Answer:

B- Parallelogram PQRS is also a rhombus.

Step-by-step explanation:

Given

Parallelogram PQRS with perpendicular diagonals

Required

Which of the option is true

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<em>If (a) is false, then (d) is also false</em>

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