kernlife
09.06.2020 •
Mathematics
Evaluate 4 - 2(a2 – b2)2 when a = 3 and b = 2.
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Ответ:
-46
Step-by-step explanation:
4 - 2(a^2 – b^2)^2 =
= 4 - 2(3^2 – 2^2)^2
= 4 - 2(9 - 4)^2
= 4 - 2(5)^2
= 4 - 2(25)
= 4 - 50
= -46
Ответ:
= -46
Step-by-step explanation:
4 - 2(a² - b²)²
= 4 - 2(3² - 2²)²
= 4 - 2(9 - 4)²
= 4 - 2(5)²
= 4 - 2(25)
= 4 - 50
= -46
Ответ:
40% = $5.00
1% = $5 ÷ 40 = 0.125
100% = 0.125 x 100 = $12.50
The cost of a ticket is $12.50
Find 20% of two tickets:
Two tickets cost $12.50 x 2 = $25
20% of $25 = 0.25 x $25 = $5
20% of two tickets cost $5