"y varies directly with square of x"
y = kx²
where "k" is the constant of variation you need to solve for first.
when y = 100 ; x = 5
100 = k(5)²
100 = 25k
100/25 = k
4 = k
Now you can solve for y when x = 9
y = 4(9)²
y = 4(81)
y = 324
Answer:
see below
Step-by-step explanation:
12. sqrt(15^2+12^2)=3sqrt(41) or around 19
13. 45 45 90 triangle means the hypotenuse is sqrt(2) times bigger, so it's 90sqrt(2) or around 127
14. 8 and 6 - divide by 2
4 and 3 - use pythagorean triple 3 4 5
multiply 5 and 2 to get to the hypotenuse being 10
subtract the original amount
8+6-10=4
15. sqrt(200+125^2)=25sqrt(89) or around 236
Domain is numbers you can use
we can't use numbers that cause problems
numbers that make division by zero and sqar roots of negative numbers
f(x)=√x+2
x cannot be negative
x can equal zero, that results in zero
√0=0
domain=all real numbers greater than or equal to 0
C
Answer:
The coordinates of D'O'G' after the reflection would be D=(0,0), O=(-1,2), G=(1,4). The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query about and it will be able to help you.
Step-by-step explanation:
