All categories

3 years ago

Helllllllllllllllllllllllllllllllllllppppppppppppppppppppppp

Mathematics

1 answer:

olchik [2.2K]3 years ago

8 0

1)Not a function

2)yes

3)not a function

You might be interested in

Desmond wants to sell his car that he paid $8,000 for 2 years ago. The car depreciated, or decreased in value, at a constant rat

bonufazy [111]

Answer:

8,000-24x

Step-by-step explanation:

Let

y ----> depreciated value of the car

x---> rate of depreciation

t ----> the time in months

we know that

The linear equation that represent this situation is

y=8,000-xt

For

t=2 years=2*12=24 months

substitute

y=8,,000-x(24)

y=8,000-24x

3 0

3 years ago

Find the equation of the line that contains the point (21,27) and is parallel to the x-axis.

Stells [14]

Answer:

y - 27 = 0 (x - 21) or y = 27

Step-by-step explanation:

8 0

3 years ago

Which ratio correctly compares 12 yd to 20 ft, when the lengths are written using the same units?

DedPeter [7]

The believe that the best answer among the choices provided by the question is the second choice "5 : 3".Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.

4 0

3 years ago

Question 2 of 25

tekilochka [14]

Answer: The Answer is C 2.29

Step-by-step explanation: I just got it right on the test

7 0

2 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.

4 0

2 years ago