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3 years ago

Is this relation a function? Justify your answer.

Mathematics

1 answer:

ryzh [129]3 years ago

6 0

Answer:

I think it is the first one.

Step-by-step explanation:

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-3x+4y=7 y=3x-5 I NEED HELP PL Z HELP ME

andrew-mc [135]

$- 3x + 4y = 7 \\ y = 3x - 5$

[Substitute the given value of y into the first equation]

$- 3x + 4 \times (3x - 5) = 7$

[Distribute 4 through the parentheses]

$- 3x + 12x - 20 = 7$

[Collect like terms]

$9x - 20 = 7$

[Move the constant to the right-hand side and change its sign]

$9x = 7 + 20$

[Add the numbers]

$9x = 27$

[Divide both sides of the equation by 9]

$x = 3$

[Substitute the given value of x into the second equation]

$y = 3 \times 3 - 5$

[Multiply the numbers]

$y = 9 - 5$

[Subtract the numbers]

$y = 4$

[The possible solution of the system is the ordered pair (x,y)]

$(x,y)=(3,4)$

3 0

3 years ago

A bus left town K

sukhopar [10]

Answer:

2 and half hour they will at T town

3 0

3 years ago

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Find the slope of the line

Lorico [155]

Answer:

what line?

Step-by-step explanation:

5 0

3 years ago

Someone please please help me with this ! I would really appreciate it

STALIN [3.7K]

Answer:

Both volumes are the same

Step-by-step explanation:

Volume of cylinder = $\pi$ $r^{2} h$

r = radius

h = height

Since area of the circle is given on top,

Area of a circle = $\pi$ $r^{2}$

We know the area is 12

12 = $\pi$ $r^{2}$ (we need to find r)

r = $\sqrt{\frac{12}{\pi} }$

r = 1.954

Now we can find the cylinder's volume:

Volume of cylinder = $\pi$ $(1.954)^{2}$ (6)

Volume of cylinder = 72

To find the volume of the cuboid, we use

Volume of cuboid = lwh

l = length

w = width

h = height

Volume of cuboid = 6 x 4 x 3

Volume of cuboid = 72

This proves that both the volumes are the same.

3 0

3 years ago

The expression on the left side of an equation is shown below. Negative 4 (x minus 2) + 5 x = box If the equation has no solutio

Vikentia [17]

Answer:

its b

Step-by-step explanation:

took it on egde

6 0

4 years ago

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