3 years ago

What are four different ways of representing functions? How can you tell if a relationship is a function?

Mathematics

1 answer:

Nady [450]3 years ago

5 0

It’s on the internet

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A pulley is used to pull a boat to the dock. The rope is attached to the boat 7 feet below the level of the pulley. What is the

Svetradugi [14.3K]

Answer: 24 ft

Step-by-step explanation:

By the Pythagorean theorem,

$7^{2}+x^{2}=25^{2} \\ \\ 49+x^{2}=625 \\ \\ x^{2}=576 \\ \\ x=\boxed{24 \text{ ft}}$

7 0

2 years ago

7. Diana took 2 hours to cycle from town X to town Y. Her average speed was 10 kilometers per

motikmotik

Answer:

a.) 20 kilometers

b.)1.67 hours

Step-by-step explanation:

a.) formula= speed =distance/time

Speed= 10km/hr

Distance=unknown

Time=2hrs

Therefore from formula, distance=speed x time

10 x 2

20 kilometers

b.) If average speed is increased by 2km/hr then

total speed= 2+10=12km/hr

Distance remains constant therefore distance= 20km

Therefore time =distance/speed

20/12

= 1.67 hours

7 0

3 years ago

P = 2m + 2w solve for m

nirvana33 [79]

P = 2m + 2w

Add -2w on both sides of the equations

2m = p - 2w

Divide both sides by 2

2w = p = 2m
/ 2 /2

m = 1 / 2 p - w

5 0

3 years ago

Read 2 more answers

Solve average rate of change (4,-1) (-3,-2)

Vera_Pavlovna [14]

Answer:

$\frac{1}{7}$

Step-by-step explanation:

The slope of the line joining the 2 points is a measure of the average rate of change.

Calculate slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (4, - 1) and (x₂, y₂ ) = (- 3, - 2)

m = $\frac{-2+1}{-3-4}$ = $\frac{-1}{-7}$ = $\frac{1}{7}$ ← average rate of change

7 0

3 years ago

Simplify this expression

aliya0001 [1]

Answer:

The answer will be 10

Step-by-step explanation:

15/3*4/2

5*2

=10

6 0

3 years ago