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2 years ago

Determine if this is a function.

Mathematics

1 answer:

Kruka [31]2 years ago

6 0

Answer: This is <u>not</u> a function

Why not?

The input x = 2 leads to more than one output. In this case, it leads to y = 20 and y = 40 simultaneously. This is the reason why we don't have a function. A function is only possible if each input x leads to exactly one y output.

Put another way: we cannot have x repeating any values if we want a function.

Side note: We could have y repeat however. So it's possible to have a function with the two points (1,5) and (3,5).

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The elevation E, in meters, above sea level at which the boiling point of a certain liquid is t degrees Celsius is given by the

Anna007 [38]

Answer:

$E(119.5)= 730m$

Step-by-step explanation:

Given

$E(t)= 1200(120-t)+520(120-t)^2$

Required

Determine E(119.5)

$E(t)= 1200(120-t)+520(120-t)^2$

Simply substitute 119.5 for t

$E(119.5)= 1200(120-119.5)+520(120-119.5)^2$

Evaluate the expressions in bracket

$E(119.5)= 1200(0.5)+520(0.5)^2$

Solve 0.5²

$E(119.5)= 1200 * 0.5+520*0.25$

$E(119.5)= 600+130$

$E(119.5)= 730$

Hence;

$E(119.5)= 730m$

5 0

2 years ago

So if you 12 centimeter cubes to build a rectangular prism, the prism has a volume of _______ cubic centimeters, or _______ cm

-Dominant- [34]

1728 cubic centimeters

12 with the exponent of 3 would basically be 12x12x12 but easier i put 12x12=144x12= which is 1728

cuz if its just 12x12 thats just the area of one side, if its 12x12x12 its the volume of the whole cube/rectangular prism

4 0

1 year ago

HELP ME PLS!!! Find the y-intercept of the rational function.

amid [387]

Answer:

-2,0

Step-by-step explanation:

the function intercepts the y axis there

6 0

2 years ago

Help me with this math equation.

alexdok [17]

Volume of cube = side^3
= 15^3
= 3375
Volume of pyramid= length x width x height/3
= 15 x 15 x 9
= 675
Total volume = 3375 + 675
= 4050 cubic feet

6 0

2 years ago

Does anyone know how to solve this?

alukav5142 [94]

Answer:

352 in

Step-by-step explanation:

first you have to find the area of one of the triangles so you multiply 9 x 8 = 72. since you have 4 triangles you times that by 4 so 72 x 4 = 288. now you have to find the area of the square so you do 8 x 8 = 64. now you add them up so 288 + 64 = 352.

6 0

1 year ago