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Degger [83]
3 years ago
15

Plz answer right i need it for a quiz

Mathematics
1 answer:
lisov135 [29]3 years ago
3 0

Answer:

a

Step-by-step explanation:

that is the answer

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Which Relation is a function
Alekssandra [29.7K]

Answer:

the top left picture is a function

Step-by-step explanation:

it is a function because the line does not go over the same x-value more then once.

8 0
3 years ago
Can some explain steps​
Mashutka [201]

Answer:

r = 3.

Step-by-step explanation:

16 = 10 + √(3r + 27)

√(3r + 27) = 6

Square both sides:

3r + 27 = 36

3r = 36 - 27 = 9

r = 3.

Check the result:

Left side of the equation = 16

Right side = 10 + √(9 + 27)

                  = 10 + √36 = 16

5 0
2 years ago
Read 2 more answers
P is the probability of a certain event. Which of the following indicates that P is certain to happen?
podryga [215]
Note for probability, if it will never happen the P = 0. If it must happen P = 1.

So certain to happen:

C. P=1

8 0
3 years ago
Read 2 more answers
If my savings of $x grows 10% each year. How much will I have in: 5 years
lawyer [7]
After 1 year=x1.1
After 2 years=x1.1*1.1
………
After 5 years=x1.1*1.1*1.1*1.1*1.1=x1.61051
8 0
2 years ago
Read 2 more answers
Using Cramer’s Rule, what is the value of x in the system of linear equations below? x+3y=16 3x+y=8
alexdok [17]
Cramer's rule works as follows:
x+3y=16
3x+y=8
Then 
x=Dx/D
y=Dy/D
where Dx,Dy,D are 2x2 matrices formed from of coefficients and right hand side.
D=
1 3
3 1
=1-9=-8
Dx=matrix D with first column replaced by the vector [16,8]=
16,3
8 1
=16-24
=-8

Dy=matrix D with second column replaced by the vector [16,8]=
1 16
3 8
=8-48
=-40

Therefore
x=-8/-8=1
y=--40/-8=5

Check:
x+3y=1+3(5)=16
3x+y=3(1)+5=8   ok.
4 0
3 years ago
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