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2 years ago

If f(x)=2x-5, then f(4) is____. A. 17 B. 3 C. 4 D.5

Mathematics

1 answer:

vladimir2022 [97]2 years ago

3 0

???? Can you be more specific please

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Fiften increased by a number

tiny-mole [99]

Answer:

15+n

Step-by-step explanation:

Let the number be 'n'

Fifteen=15

increased by= +

a number= n

Hope this helps ;) ❤❤❤

7 0

2 years ago

Read 2 more answers

Rosita can wax her car in 2 hours or 120 minutes. When she works together with Helga, they can wax the car in 45 minutes. How lo

Mashcka [7]

<h2>Time taken by Helga to wax the car is 72 minutes</h2>

Step-by-step explanation:

Let w be the work of waxing.

Rosita can wax her car in 2 hours or 120 minutes.

Time taken by Rosita = 120 minutes

$\texttt{Rate of Rosita = }\frac{W}{120}$

Let time taken by Helga be t,

$\texttt{Rate of Helga = }\frac{W}{t}$

When she works together with Helga, they can wax the car in 45 minutes.

We have

$\frac{W}{\frac{W}{120}+\frac{W}{t}}=45\\\\120t=45(120+t)\\\\120t=5400+45t\\\\t=72minutes$

Time taken by Helga to wax the car is 72 minutes

6 0

3 years ago

Sarah had 7.1 pints of blue and white paint, she uses 3/4 of blue paint. How many pints is left. How do I do this problem

Alexxx [7]

Answer:5.325 or 213 / 40

anymore questions ask me ;)

7 0

3 years ago

Read 2 more answers

4. If two lines are parallel to the same line, then they are

garik1379 [7]

They are parallel to each other

4 0

3 years ago

Will measures the distance around a tree using a tape measure as 48 inches. Use this measure to find the diameter of a cross sec

marin [14]

Answer: Assume the cross section is taken at the same height where the circumference was measured. Then

48/3 = 16 inches, close enough, actually. Trees aren't cylinders.

48 × 7 / 22 inches = 15.2727272

48/3.1415926 = 15.2788747

48/pi = 15.2788745368219522338128412837... ☺️

Step-by-step explanation:

circumference / diameter = pi = 3.1415926......

So diameter = circumference / pi.

6 0

2 years ago