Answer:
c This is the direct variation
Step-by-step explanation:
The equation for direct variation is y= kx
Solving this for k
y/x =k
So y/x must be a constant
a. 9/3 =3
2/7 does not =3 so this is not a direct variation
b 1/2 = .5
-3/6 = -.5
This is not the same so this is not a direct variation
c. 27/9 =3
18/6 =3
9/3 =3
This is a direct variation with a constant of 3
d 5/-7 = -5/7
1/-3 = -1/3
This is not the same so this is not a direct variation
Answer:
14/20
Explanation:
Sasha tried to get a marble 20 times. 14 of those times she got a yellow marble.
The experimental probability, which is the probability of choosing a yellow marble when Sasha actually tries choosing marbles from the bag.
The theoretical probability is based on the chance that Sasha will get a yellow marble, 7/70, is from the amount of marbles in the bag of yellow colour.
Step-by-step explanation:
To calculate Celsius into Fahrenheit you have to use this formula;
(0⁰C×9/5)+32=32F
where 0⁰C stands for 0⁰ temperature in Celsius and F stands for farhenheit
you can use 1⁰,2⁰,....a⁰ to calculate it.
According to bodmas, we do the brackets first so four times three is 12
And 18 divided by six is 3
So now we have 12+3 which is 15
So the value of the expression is 15
A is false, linear functions only intersect once
D is false, equal slopes implies parallel lines implies no intersection. lines with different slopes ALWAYS intersect once.