Answer:
Step-by-step explanation:
Total marbles=120
sum of ratio=2+3+7=12
Red=2/12 ×120=20
yellow=3/12×120=30
Green =7/12×120=70
Answer:
f(1)= 12-31+7
Step-by-step explanation:
f(1) = -12
Answer:
1. diameter=8 kilometres
2. area=98.96 inches
3. 37m
Step-by-step explanation:
1. diameter= 2*radius
2. area of sector=θ out of 360*π
where θ is the angle
3. area of garden=π
706.5=π
=706.5/π
= 225(nearest whole)
r=
=15m
we now use Pythagoras theorem to find length of each pathway
1600=225+
=1600-225=1375
x=
=37 m (to nearest whole)
Answer:
y = .25x + 2.5
Step-by-step explanation:
First find the slope which is m in y = mx + b. y = mx + b is the standard form for a line.
m = (y₂-y₁)/(x₂-x₁)
m = (3-1)/(2+6)
m = 2/8
m = 1/4
Plug that in.
y = 1/4x + b
To find b plug in one of the two points and solve.
3 = 1/4(2) + b
3 = 1/2 + b
3 - 1/2 = 1/2 - 1/2 + b
2.5 = b
3.49 is the anwser you need
