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kicyunya [14]
3 years ago
6

A function f represents the percentage of life remaining in a cell phone battery. The life of a cell phone battery is dependent

on the number of minutes, a , that a cell phone has been in use. In the context of the problem, explain the meaning of the following statements: D. f(22)
Mathematics
1 answer:
Wittaler [7]3 years ago
6 0

Answer:

f(22) then a is minutes =22 min and f(22)= percentage

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Please help. If you answer correctly and give an explanation I'll give you 5 stars, thanks, and brainliest.
timama [110]

The solution of the equation is  x=\frac{11}{7}

Step-by-step explanation:

To simplify an equation of x

  • Simplify each side of the equation
  • Collect x in side and the numerical terms in the other side
  • Find the value of x

∵ The equation is 2x + \frac{1-x}{4}=3

- Multiply all terms of the equation by 4 to cancel the denominator

 of the 2nd term in the left hand side

∵ The equation is 4(2x) +4 (\frac{1-x}{4})=4(3)

∴ 8x + (1 - x) = 12

∴ 8x + 1 - x = 12

- Add like terms

∴ (8x - x) + 1 = 12

∴ 7x + 1 = 12

- Subtract 1 from both sides

∴ 7x = 11

- Divide both sides by 7

∴ x=\frac{11}{7}

The solution of the equation is  x=\frac{11}{7}

Learn more:

You can learn more about the solution of an equation in brainly.com/question/11306893

#LearnwithBrainly

3 0
2 years ago
On a trip you had to change your money from dollars to British pounds. You got 560 pounds for 800 dollars. How many pounds will
guapka [62]

Answer:

B. 210

Step-by-step explanation:

800/560 = 1.42857142857

300/1.42857142857= 210

7 0
2 years ago
What is the value of h in the figure below? In this diagram, /\BAD ~ /\CBD.
dusya [7]

Answer:

12

Step-by-step explanation:

(25-16) / h = h / 16

9/h = h/16

=144 ( 9 x 16)

h₂ = 144

h= square root 144

h= 12

3 0
2 years ago
Simplify (4b+7)8b^2<br> Can someone help me please?
Fed [463]

Answer:

32b^{3} +56b^{2}

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the area of a circle whose radius is 4x centimeters? write your answer in terms of pi.<br>​
Oduvanchick [21]

Answer:

16xpi

Step-by-step explanation:

To find the area of a circle the formula is pi r squared.

r represents radius, aka 4x.

4 times 4 yields 16.

Leaving you with 16xpi

5 0
2 years ago
Read 2 more answers
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