Step-by-step explanation:
current Amount of money 23
8x10=80
80+23=103
William will have 103$ after 10 weeks
Answer: 2 197/1000
Explanation:
(1 3/10)^3
= (13/10)^3
= 13^3/10^3
= 2197/1000
= 2 197/1000
Answer:
20%
Step-by-step explanation:
The reason it is 20% is due to the fact that if you put it in a form showing 250/250 = 100/100 and put another proportional rate underneath it showing 200/250 = x/100, you would have to multiply the numerator of the fraction on the left by the denominator of the fraction on the right to get 20000. Now you divide 250 from 20000 and get x for 80, resulting in 80/100 or 80%. All you have to do now is subtract 100-80, which equals 20, resulting in 20%.
Hope that helps!! It's my first time in answering so, ya. ;D goodluck!
QUESTION 1
Given that:
,
,
and

Then;


Group similar terms;

Simplify;

QUESTION 2
Given that;
.

and

Substitute the functions;

Substitute x=3




QUESTION 3
Given:


This implies that;

Expand the parenthesis;


QUESTION 4
The given function is;

Let





The range is:



The interval notation is;

(not sure if this is right but)
x (to the 2nd power) + y (to the 2nd power) = cos (90) (to the 2nd power)