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2 years ago

calculate the rate of change -24 ,60) ,( -34, 50 please help

Mathematics

1 answer:

VLD [36.1K]2 years ago

4 0

Step-by-step explanation:

the rate of change is the slope of the line connecting both points.

the slope is the ratio y/x indicating how many units y changes, when x changes a certain amount of units when going from one point to another.

so, here

x changes by -10 units (from -24 to -34)

y changes by -10 units (from 60 to 50).

the slope or rate of change is -10/-10 = 1/1 = 1

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Alana and two of her friends evenly split the cost of a meal. each person owes $14.68.

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Answer:

$44.04

Step-by-step explanation:

14.68 * 3 = 44.04

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3 years ago

. Two bicyclists, Sarah and Emily, depart from the same location. Sarah heads N55°E at an average speed of 6 km/hr. Emily heads

Liula [17]

Answer:

The distance between them after 30 minutes is 6.5 km.

Step-by-step explanation:

Speed = $\frac{distance}{time}$

Sarah's speed = 6 km/hr = 1.6667 m/s

Emily's speed = 10 km/hr = 2.7778 m/s

The measure of angle between their bearings = $105^{o}$

After 30 minutes (1800 seconds);

distance = speed x time

Sarah would have covered a distance = 1.6667 x 1800

= 3000 m

= 3 km

Emily would have covered a distance = 2.7778 x 1800

= 5000 m

= 5 km

The distance between them, a, can be determined by applying the cosine rule;

$a^{2}$ = $b^{2}$ + $c^{2}$ - 2bcCos A

= $5000^{2}$ + $3000^{2}$ -2(5000 x 3000) Cos 105

= $5000^{2}$ + $3000^{2}$ -2(5000 x 3000) x (-0.2588)

= 2.5 x $10^{7}$ + 9 x $10^{6}$ + 7764000

= 41764000

a = $\sqrt{41764000}$

= 6462.5073

a = 6462.5 m

The distance between them after 30 minutes is 6.5 km.

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3 years ago

I need help pleaseeee

stealth61 [152]

Answer:

its 65

Step-by-step explanation:

welcome girl

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3 years ago

Does ANYONE Know How To Solve THIs…Brainliest Will be awarded!!!

emmainna [20.7K]

Answer:

w = 8
x = 8√2
y = 8√2
z = 16

Step-by-step explanation:

A 45-45-90 right triangle is isosceles. That means both legs are the same length, and its hypotenuse is √2 times the leg length. You can figure these facts using trigonometry or the Pythagorean theorem, or you can rely on your memory of them.

w = 8 . . . . . . . . . . . same as the leg length shown

x = y = 8√2 . . . . . hypotenuse of smaller triangle; both legs are the same

z = (8√2)√2 = 16 . . . . hypotenuse of larger triangle

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3 years ago

Which equation does NOT represent y as a quadratic function of x?

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Answer:

B. y-x=2y+16

Step-by-step explanation:

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3 years ago

￼calculate the rate of change -24 ,60) ,( -34, 50 please help

calculate the rate of change -24 ,60) ,( -34, 50 please help