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KIM [24]
3 years ago
13

Is the relation shown in the arrow diagram a function? Explain.

Mathematics
1 answer:
horsena [70]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Each input can not have 2 outputs or else it’s not a function. 2 maps to 21 and 42. It MPs to two outputs. It’s not a function

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Find a formula for the described function. an open rectangular box with volume 9 m3 has a square base. express the surface area
Maru [420]

Let

x--------> the length side of the square base

h--------> the height of the box

we know that

<u>the volume of the box is equal to</u>

V=x^{2} *h\\ V=9\ m^{3}

so

x^{2} *h=9\\\\h=\frac{9}{x^{2} }

<u>the surface area of the box is equal to</u>

SA=area\ of\ the\ base+perimeter\ of\ base*height (remember that the box is open)

area of the base=(x^{2})\ m^{2}

Perimeter of the base=(4*x)\ m

height=(h) m

h=\frac{9}{x^{2}}

substitute

SA=x^{2} +4*x*h\\ \\ \\ SA=x^{2} +4*x*\frac{9}{x^{2} } \\ \\ SA=x^{2} +\frac{36}{x}

we know that

the value of x can not be negative and the denominator can not be zero

therefore

<u>the answer is</u>

the domain of  SA is x> 0

the domain is the interval-------------> (0,∞)

6 0
3 years ago
Please help I have no clue on how to do this.
GREYUIT [131]
The second one

36/25

hope this helps
good luck!!! :))))
4 0
3 years ago
Read 2 more answers
Write the equation of a line through points (5, 5) and (1, 0) in point-slope form
klasskru [66]

Answer:

y=(5/4)x-5/4

Step-by-step explanation:

First we need to find the slope:

\frac{y_{2}-y_{1} }{x_{2}-x_{1} }

=\frac{5-0}{5-1}

=5/4

The SLops is 5/4

point-slope forum is

y=(5/4)x-5/4

(i think)

3 0
3 years ago
What is the equation of a line with a x-intercept of −2 and a y-intercept of 10?
IceJOKER [234]

Hey there! :)

Answer:

y = 5x + 10

Step-by-step explanation:

From the information given, we can derive the points (-2, 0) and (0, 10). Find the slope using the slope formula:

m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}

Plug in the points:

m= \frac{10 - 0}{0 - (-2)}

Simplify:

m= \frac{10}{2}

m = 5.

The equation in slope-intercept form is y = mx + b. We were already given the b value, or y-intercept as y = 10. Therefore:

y = 5x + 10 is the equation written in slope-intercept form.

8 0
3 years ago
Read 2 more answers
10
expeople1 [14]

Answer:

13

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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