1. What is the domain of the function graphed below?

Mathematics

1 answer:

Nimfa-mama [501]3 years ago

3 0

Answer:

D. 0<x<5

Step-by-step explanation:

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Is this relation a function justify your anwser

AnnZ [28]

Answer:

yes

Step-by-step explanation:

yes this is hope it hepls

3 0

2 years ago

A boat travels for 7 hours. if it travels 4 hours downstream and 3 hours upstream. ten t covers a distance of 116 km. but if it

nadya68 [22]

Speed = Distance / Time
Distance = Speed*Time

For this problem, we should bear in mind that current speed has an impact on the boat speed...

for upstream, the boat goes against the current, and so its speed is

U = V - C

where V is the speed of the boat
C is the current speed

for downstream, it will be:

D = V + C

Convert the problem into mathematical equations:

4D + 3U = 116
3D + 4U = 108

4(V+C) + 3(V-C) = 116
4V + 4C + 3V -3C =116
7V + C = 116

3(V+C) + 4(V-C) = 108
3V + 3C + 4V - 4C = 108
7V - C = 108

Solving the equations:

7V + C = 116
7V - C = 108

14V = 224
V = 16km/hr —-> speed of boat

to get C:
7(16) + C = 116
C = 4km/hr

5 0

3 years ago

Find the common ratio -8,-13,-18,-23 A. -21 B. 5 C.-5 D.-23

dimulka [17.4K]

It’s 5 or -5 which is b or c

4 0

3 years ago

Jenna has a round trampoline with an area of 153.86 feet squared. Jenna is 2 points

astraxan [27]

Answer:

The length of the cover that will wrap around the edge of the trampoline is 43.96 ft.

Step-by-step explanation:

Given that,

Area of trampoline, $A=153.86\ ft^2$

Jeena wants to buy a cover to put around the edge of the trampoline. We need to find the length of the cover that will wrap around the edge of the trampoline. First of all, lets find the radius of trampoline. Let is is r. So,

$\pi r^2=153.86 \\\\r=\sqrt{\dfrac{153.86 }{3.14}} \\\\r=7\ ft$