Answer:
1) a) yes
b) no
c) a² - 39
(a)² - (sqrt(39))²
(a - sqrt(39))(a + sqrt(39))
This quadratic can be split into real factors, but not rational
sqrt(39) is a real number, but not rational
The original number was: " 14 " .
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a + 5 = b ;
b * 7 = 133 .
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What is: "a" ?
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133 / 7 = 19 = b ;
a + 5 = b = 19 ;
a + 5 = 19 ;
Subtract "5" from each side of the equation;
to isolate "a" on one side of the equation; and to solve for "a" ;
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a + 5 − 5 = 19 − 5 ;
to get:
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a = 14 .
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Let us check our answer:
Start with "14" ;
Add "5" : "14 + 5 = 19 " .
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then multiply by "7" : "19 * 7"
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and the result is: 133 ?
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19 * 7 = ? 133 ? Yes!
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Answer:
36.6
Step-by-step explanation:
if he puts in 12.2 as the input, then the equation would look like this f(12.2) = 3(12.2)
which would be
f(12.2) = 36.6
that is because x is the input, so if x = 12.2, then the equation above is what it would look like
Answer:
Amount 2382.03
Interest = 382.03
Step-by-step explanation:
A = P (1+r/n)^nt
