2 years ago

Tell whether the following relation is a function or not3. 2

Mathematics

1 answer:

fiasKO [112]2 years ago

5 0

It is a function I think

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Find the area of this parallelogram 8cm 10cm 14cm

Natasha2012 [34]

Answer:

112 $cm^{2}$

Step-by-step explanation:

A=bh

A=14*8

A=112

8 0

2 years ago

A rectangular prism has a length of 13 meters, a height of 8 meters, and a width of 9 meters. What is its volume, in cubic meter

Angelina_Jolie [31]

Answer:

V =936 m^3

Step-by-step explanation:

The volume of a cube is given by

V = l*w*h

V = 13*8*9

V =936 m^3

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2 years ago

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Solve the simultaneous equation: 5 x + 2 y = 25 5 x − y = 10

Liono4ka [1.6K]

Answer:

(x, y) = (3, 5)

Step-by-step explanation:

$5x+2y=25\\5x-y=10$

Solving by elimination here again, there are 2 good options available. Either multiply the whole bottom equation by -1 to cancel the x, or by 2 to cancel the y. I'll do the latter:

$5x+2y=25\\\\2(5x-y=10)\\10x-2y=20$

Add from top to bottom:

$\rightarrow (5x+10x)+(2y-2y)=25+20\\\rightarrow 15x=45\\\rightarrow x=3$

Now, with the value of x, solve for y in either of the equations. I'll choose the second one here:

$\rightarrow 5x-y=10\\\rightarrow 5(3)-y=10\\\rightarrow 15-y=10\\\rightarrow -y=-5\\\rightarrow y=5$

(x, y) = (3, 5)

4 0

1 year ago

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sweet t has 2 orange picks for every five green. if there are 21 picks in all, how many picks are orange

jarptica [38.1K]

21 picks
altogether (2x+5x)=21
7x=21
x=3
2*3=6 orange picks

or
x=orange, y = greens
x+y=21
x/y=2/5,----> y=5x/2
x+5x/2=21
2x/2+5x/2=21
7x/2=21
7x=42,
x=6 orange picks

3 0

2 years ago

F(X) = (x + 5)(x - 1)

marusya05 [52]

Answer:

X=-5 or X=1

Step-by-step explanation:

f(x)=(x+5)(x-1)

(x+5)(x-1)=0

x=-5 orx=1

4 0

1 year ago