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3 years ago

Determine the domain and the range of the graph.

Mathematics

1 answer:

dimulka [17.4K]3 years ago

5 0

Answer:

Domain: (-∞,∞)

Range: -1

Step-by-step explanation:

Domain means the x-coordinates covered:

(-∞,∞)

Range means the y-coordinates covered:

Only -1 because there are no other existing y-coordinates.

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Andrei [34K]

Answer:

D its D

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Can you help me? Please explain how you got it!

julia-pushkina [17]

Answer:

Step-by-step explanation:

First we must find the x and y intercepts for y = -2x - 4. The y-intercept is -4, since it is b in y = mx + b, but you can also find it by plugging in zero for x:

$y = -2(0) - 4 = 0 -4=-4$

The x-intercept is found by plugging in zero for y:

$0=-2x-4$

$0+4=-2x-4+4$

$4=-2x$

$\frac{4}{-2}=\frac{-2x}{-2}$

$-2=x$

The graph with an x-intercept of -2 and a y-intercept of -4 is C. Also, less than inequalities have the shading underneath the line, so we definitely know C is the answer.

4 0

3 years ago

The height of a building in a drawing is 15 inches if the actual height of the building is 165 feet find the scale factor of the

Elenna [48]

Answer:

The scale is 11 feet per one inch.

Step-by-step explanation:

$\frac{165feet}{15inches} = 11feet / inch$

3 0

2 years ago

An oblique cylinder has a radius of 10 meters and a volume of 2,500 cubic meters. Use Cavalieri’s Principle to solve for the hei

shusha [124]

The idea of the Cavalieri's Principle states that even if the cylinder is oblique, so long as the planes in the figure are parallel, the equation would still be equal to,
V = Bh = πr²h
Substituting,
2,500 = π(10 m)²h
h = 7.95 m
The answer should be 5 meters.

4 0

2 years ago

2m+n=7<br> 4m+3n=-10<br> Solve using substitution method

jeka57 [31]

Answer:

m=31/2, n=-24. (31/2, -24).

Step-by-step explanation:

2m+n=7

4m+3n=-10

-------------------

n=7-2m

4m+3(7-2m)=-10

4m+21-6m=-10

-2m=-10-21

-2m=-31

2m=31

m=31/2

2(31/2)+n=7

31+n=7

n=7-31

n=-24

5 0

3 years ago