Answer:
if we take the number of quarters Barrett have to be x we know Penelope has twice that ie 2x. so in total they have 2x+x = 60, 3x = 60; so x= 60/3 = 20.
Barrett has 20 quarters.
need to kind K
Y=k x 1/x^2 = k/x^2
Find K when y=4 & x=5
Y=k/x^2 =
4=k/5^2=
4=k/25
K=4*25 =100
When x = 2
Y=100/2^2
Y=100/4
Y=25
c
Step-by-step explanation:
1 + tan²theta = sec²theta
tan²theta = 3² - 1
tan²theta = 8
tan theta = sqrt(8)
Positive because Quadrant 1
sqrt(8) = sqrt(4×2) = sqrt(4)×sqrt(2)
= 2×sqrt(2)
See below ↓
19.
20.
