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2 years ago

5. Which of the following is a function?

Mathematics

1 answer:

NNADVOKAT [17]2 years ago

6 0

Answer:

D. (1, 1), (2, 2), (3, 3), (4,4), (5,5)

Hope this helps!

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Solve the equation 3x-2y =7, x+2y= -3

swat32

Answer:

x=1
y= -2

Step-by-step explanation:

3x-2y =7
x+2y= -3
4x=4
x=4/4
x=1
3x-2y=7
3(1)-2y=7
3-2y=7
-2y=7-3
-2y=4
2y=-4
y=-4/2
y= -2
Verify solution
x+2y= -3
1+2y= -3
2y=-3-1
2y= -4
y= -4/2
y= -2

3 0

2 years ago

Read 2 more answers

Y=f(x) = 8^x find f(x) when x= 1/3

lilavasa [31]

the correct answer for plato users is

2!!

4 0

3 years ago

ILL MARK BRAINLIEST IF FAST

nignag [31]

Answer:

Step-by-step explanation:

A unit rate is basically which one increases more as time goes on. Now. to make it easier let me explain visual.

You have 50 apples at the start and every hour you get 200 more apples, sweet!

Now let's look at the chart.

The first one is 200x+100, this is wrong since this has a better start but you don't get as much apples.

Same goes for the B and C. The only one that would make sense is D since you're also adding 10 more apples for each one you increase.

4 0

3 years ago

Is the given point interior , exterior, or on the circle k (x+2)2 + (y-3)2 =18 P (8,4)

Mnenie [13.5K]

One way would be to find the distance from the point to the center of the circle and compare it to the radius

for
$(x-h)^2+(y-k)^2=r^2$
the center is (h,k) and the radius is r

and the distance formula is
distance between $(x_1,y_1)$ and $(x_2,y_2)$ is
$D=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$

r=radius
D=distance form (8,4) to center

if r>D, then (8,4) is inside the circle
if r=D, then (8,4) is on the circle
if r<D, then (8,4) is outside the circle

so
$(x+2)^2+(y-3)^2=18$
$(x-(-2))^2+(y-3)^2=(\sqrt{18})^2$
$(x-(-2))^2+(y-3)^2=(3\sqrt{2})^2$

the radius is $3\sqrt{2}$
center is (-2,3)

find distance between (8,4) and (-2,3)

$D=\sqrt{(8-(-2))^2+(4-3)^2}$
$D=\sqrt{(8+2)^2+(1)^2}$
$D=\sqrt{10^2+1}$
$D=\sqrt{100+1}$
$D=\sqrt{101}$

$r=3\sqrt{2}$ ≈4.2
$D=\sqrt{101}$ ≈10.04

do r<D

(8,4) is outside the circle

6 0

4 years ago

Please help me. alg 2<br><br> Find the common ratio of the geometric sequence -13, 39, -117

grandymaker [24]

Answer:

-3

Step-by-step explanation:

you can divide the second term by the first term to solve

39/-13 = -3

then, I like to check that this fits with the third term

39*-3 = -117

so the common ratio is -3

6 0

3 years ago