Step-by-step explanation:
2/3 - 1/4
8/12 - 3/12= 5/12
Answer:
243cm^3
Step-by-step explanation:
By Pythagoras' Theorem,
height of the prism ^2 + 5.4^2 = 7.8^2
height of the prism = ±√(7.8^2 -5.4^2) = ±5.6285cm (5s.f.) (rej. - 5.6285 since height > 0cm)
volume of the prism = 1/2 x 5.4 x 5.6285 x 16 = 243cm^3 (3s.f.)
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Answer:

Step-by-step explanation:
Given m = - 
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= 
Answer:
PLEASE HELP ME WILL MARK BRAINLIEST
Step-by-step explanation:
Answer:
Option A, 300 - 20w
Step-by-step explanation:
In a week, she withdraws $20
in w weeks, she will withdraw ; w × 20
= 20w
Balance = Initial amount - Amount withdrawn
= 300 - 20w