Answer:
Rational number as denominator is not equal to zero and numerator is a integer.
Answer:
Katherine invested $12,000
Step-by-step explanation:
Use formula

where
I = interest,
P = principal,
r = rate (as decimal),
t = time (in years).
In your case,
t = 1 year,
r = 0.06 (or 6%)
P + I =$12,720, thus

Answer:
70
Step-by-step explanation:
Apparently, you want the ratio of the weights:
(dino weight)/(car weight) = (2.8×10^5)/(4×10^3)
= (2.8/4)×10^(5-3) = 0.7×10^2 = 0.7×100
= 70
The heaviest dinosaur weighed about 70 times the weight of an average car.
_____
Your calculator can do arithmetic in scientific notation. So can any spreadsheet.
The applicable rule of exponents is ...
(10^a)/(10^b) = 10^(a-b)
This would equal (9+25)/2
Which could be simplified into 34/2
Which means the answer is 17
Answer:
x = 9.889
Step-by-step explanation:
9 ( 2x + 1 ) - 187 = 0
18x + 9 = 187
18x = 178
x = 9.889
I am pretty sure that this is the answer. Tell me if I am wrong.
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