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steposvetlana [31]
3 years ago
5

Is (1,8), (2,12), (3,16) (4,20) a function?

Mathematics
1 answer:
ikadub [295]3 years ago
8 0
Yes it is a function. As x increases by one, y constantly increases by 4. The function would me y=4x+4
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If x - y=5, x + y = 59, and x > y, what is the value of xy?
nlexa [21]

Answer:

864

Step-by-step explanation:

∵X-Y=5    and.  

∵X+Y=59   add the two equations

∴2X=64

∴X=32 (substitute in any equation)

∴32 - Y=5

∴Y = 27

∴ So . X×Y=32 × 27=864

6 0
3 years ago
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A surveyor is attempting to find the distance across a pond. From a point on
SSSSS [86.1K]
Sorry don’t know! Hope u find someone that does know
4 0
2 years ago
Find the area of each figure below
Ugo [173]

Answer:

25. 27a^{3}b^{2}

26. 3\pi x^{3}y

Step-by-step explanation:

For 25:

A = \frac{a+b}{2} h  (area of a trapezoid)

A=\frac{11a^{2}b+7a^{2}b}{2} *3ab  (substitute terms)

= \frac{18a^{2}b}{2}*3ab  (collect like terms)

= 9a^{2}b*3ab  (reduce the fraction by crossing out 2)

= 27a^{3}b^{2}  (calculate)

For 26:

A=\pi r^{2}  (equation of area of a circle)

A=\pi (3x^{3} y)^{2}  (enter the radius)

= 3\pi x^{3} y  (communtative property to reorder the terms)

7 0
3 years ago
( 3 1 ​ ) 2 +3 2 =left parenthesis, start fraction, 1, divided by, 3, end fraction, right parenthesis, squared, plus, 3, squared
Fynjy0 [20]

Answer:

I guess that we have the equation:

(1/3)^2 + 3^2 =

And we want to solve it.

Here just remember that:

3^2 = 3*3 = 9

then:

(1/3)^2 = (1/3)*(1/3) = 1/9

replacing these in the expression, we get:

(1/3)^2 + 3^2 = 1/9 + 9

If we want to write this as a single fraction, we can rewrite:

1/9 + 9 = 1/9 + (9/9)*9

           = 1/9 + 81/9 = (1 + 81)/9 = 82/9

4 0
3 years ago
What are the coordinates of the y-intercept of the line represented by the equation 5x+3y=30
andrezito [222]
The coordinates of the y-intercept of the line represented by the equation 5x+3y=30 are (0,10).

3 0
3 years ago
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