Answer:
1.05
Step-by-step explanation:
shop A: 2x3= 6
shop b: 5 for 1.10, 5 more for .55, so 1.65/10
1.65×3= 4.95
6-4.95= 1.05
Answer:
1) 2x-5 2) -10/x^2
Step-by-step explanation:
Use power rule and constant rule for the first one:
1) f(x)=x^2-5x^1+1 (x^n)'=nx^(n-1) and (c)'=0
f'(x)=2x^1-5(1)x^0+0
f'(x)=2x-5(1) x^0=1
f'(x)=2x-5
Use just power rule for last one after a rewrite
2) f(x)=10/x
f(x)=10x^(-1) now use power rule
f'(x)=-10x^(-2) =-10/x^2
Answer:
15% discount
Step-by-step explanation:
1 - (102/120)
1 - 0.85 = 0.15 = 15%
X would be 8 and y would be 4.
2x - 3y = 4
2(8) - 3(4) = 4
16 - 12 = 4 <---
Gm = √a*b for two numbers
hence gm = √6*42 = 2√63 = 15.87
