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3 years ago

A system of two linear equations and three unknowns can be solved by:

Mathematics

1 answer:

irakobra [83]3 years ago

3 0

These cannot be solved.- 3 unknowns require 3 equations

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State which of the following sets of ordered pairs represent a function.

zalisa [80]

Answer:

Option (D) is correct.

Step-by-step explanation:

A function can be termed as a process from a set of x values to a set of possible y-values where each x-value relates to exactly one y-value.

In other words, a relation can only be a function there is no repetition of x-values. It means a relation can not have duplicated inputs.

Given the sets

Set A: (5,2), (4, 3), (3, 4), (2,5)

Set B: (-1,-6), (0, 2), (1, 2), (3, 6)

Set C: (2, 1), (4, 2), (2, 3), (8,4)

It is clear that sets A and B represent the function because, in these sets, each x-value relates to exactly one y-value. In other words, there are no duplicated inputs.

But, set C has duplicated inputs i.e. x = 2 is repeated twice, and a function can not have a repeated input.

Therefore, we conclude that set A and set B represent a function.

Thus, option (D) is correct.

7 0

3 years ago

Find the slope of the line passing through each of the following pairs of points and draw the graph of the line. (5, 2), (3, 3)

Strike441 [17]

Answer:

-0.5

Step-by-step explanation:

slope=rise/run or y/x in other words(y2-y1/x2-x1)
(y2-y1) is 3-2 so y2-y1=1
(x2-x1) is 3-5 so x2-x1= -2
-1/2 or -0.5 would be the slope.

8 0

3 years ago

Read 2 more answers

E^(i.π)+2^(-2+3-1)+21899921030

Anna007 [38]

Answer:

21899921030

Step-by-step explanation:

e^(i.π) = -1

2^(-2+3-1) = 2^0 = 1

Therefor

-1 + 1 + 21899921030 = 21899921030

5 0

2 years ago

DG¯¯¯¯¯¯ , EG¯¯¯¯¯ , and FG¯¯¯¯¯ are perpendicular bisectors of the sides of △ABC . DG=5 cm and BD=12 cm.

jonny [76]

Given that DG, EG, and FG are perpendicular bisectors of the sides of △ABC, this means that the point of intersection, G, is the circumcenter of the triangle and hence AG, BG, and CG are equal.

Given that DG = 5 cm and BD = 12 cm, then

$BG= \sqrt{DG^2+BD^2} \\ \\ = \sqrt{5^2+12^2} = \sqrt{25+144} \\ \\ = \sqrt{169} =13$

Since AG = BG = CG, therefore, CG = 13 cm.

3 0

3 years ago

Find the volumeeeeeeee

Alla [95]

Answer:

264 yd³

Step-by-step explanation:

The volume of a triangular pyramid can be found using the formula ...

V = 1/2LWH

where H is the height of the triangular base.

V = 1/2(8 yd)(11 yd)(6 yd)

V = 264 yd³ . . . . volume of the prism

6 0

3 years ago