Step-by-step explanation:
answer is shown above, that is a tricky question though.
Answer:
15%
Step-by-step explanation:
The price of the tablet was increased from $180 to $207.
Increase = $207 - $180
= $27
Therefore,
Percentage increase = increase/initial amount x 100%
That’s $27/$180 x 100%
0.15 x 100
15%
The percentage increase was 15%
The kite will be 7 inches wide because to go from 8 to 28 you multiply by 3.5 so you do the same to the 2.Concluding that your answer will be 7 inches wide
Answer:
Perimeter = (4x + 12)
Step-by-step explanation:
As given in the question itself,
"Perimeter of a polygon is the sum of measures of all the sides of the polygon."
By this property expression to calculate the perimeter of the given polygon will be,
Perimeter = x + x + x + 2 + 2 + (x + 4) + 2 + 2
= 3x + 4 + (x + 4) + 4
= 4x + 12
Hence, Perimeter = (4x + 12)
Answer:
a) Two half lives, b) 
Step-by-step explanation:
a) The polonium-210 has a half life of 138.4 days. Therefore, 1.994 half lives have past.
b) Mass decay is described by the following exponential model:
The time constant for the isotope is:
The mass of the isotope after 276 days is:
