18/18 as a whole number is 1.
Answer:
Yes it is proportional
Step-by-step explanation:
Notice how when x goes up 1 y goes up by 1.6. There is a pattern, if there is no pattern then you would see that numbers either go up or down with no pattern.
This is easy write 2/3 or 1/3
Answer:
21
ctto JBarnum
Step-by-step explanation:
P+11=(1/2)(P-13)^2
P+11=(1/2)(P^2-26p+169)
2(P+11)=(1/2)(2)(P^2-26p+169)
2P+22=P^2-26p+169
0=P^2-28p+147 ( -7 and -21)
(P-7)(P-21)=0
P=7,21 (cant be 7 as 13 years from 7 is negative so peter is 21)
checking:
21+11=32
32=(1/2)(21-13)^2
32=(1/2)(8)^2
32=(1/2)64
32=32
correct
Answer:
<em>48°</em>
Step-by-step explanation:
The set up will form a right angled triangle;
Length of the slide is the hypotenuse = 9m
Horizontal distance will be the adjacent = 6m
Required
angle that the slides make with the ground;
Using the SOH, CAH TOA trigonometry identity;
Cos theta = Adj/Hyp
Cos theta = 6/9
Cos theta = 0.6667
theta = cos^-1(0.6667)
<em>theta = 48.19°</em>
<em>Hence the angle that the side makes with the ground to nearest degree is 48°</em>