Answer:
I notice that they are equal.
Step-by-step explanation:
The slopes are the same when they are on the same line
The answer is: [C]: " 1200 m³ " .
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Explanation:
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Volume of a cylinder = (Base area) * (height) ;
= (100 m²) * (12 m) ;
= 1200 m³ ; which is: Answer choice: [C] .
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Answer:
It takes at least 7 months for the cat to be at least 6 kg lighter than the original weight.
Step-by-step explanation:
Use exponential decay formula:
A = P (1-r)t
A = amount decreased to
P = original amount
r = rate of decrease
t = time
6 ≥ 12 (1-0.10)t divide both sides by 12
0.5 ≥ (0.9)t take log of both sides
log (0.5) ≥ log (0.9)t power rule of logs lets the exponent t drop to front of log to become a factor
log (0.5) ≥ t log(0.9) divide both sides by log(0.9) which is negative so reverse the inequality sign
log (0.5) / log (0.9) ≤ t use calculator
6.57 ≤ t
It takes at least 7 months for the cat to be at least 6 kg lighter that original weight.
check:
12 (0.9)7≈ 5.73
12 (0.9)6 ≈ 6.37
The answer is C: Expression b and d
Expression A is used when you want to know how much $$ was taken off the original
Expression C won’t work at all because it’s like saying what is $1 subtract discount.
Expression B and D is saying original,P, subtract discount price=sales price
