The answer is unreasonable because the value of x is between 2 and 3.The error is : she did not introducing logs in solving the equation.
Step-by-step explanation:
The question is
Here answers is unreasonable because, she can test with powers of seven like;
7²=49
7³=343
So this means the value of x lies between 2 and 3, so here answer 11.71 is unreasonable
b) In this case, to solve the equation, introduce logs both sides
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Keywords :Equation, error
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You can make 3 and 3/7 into a improper fraction as 24/7 by multiplying 7 by 3 which is 21 and then adding that to 3 which gives you to answer 24/7. To find the reciprocal you simply flip the fraction which gives you 7/24
Answer:
n>17
Step-by-step explanation:
-n<-14 - 3
-n<-17
n>17
Answer:
Step-by-step explanation:
Therefore:
Opposite = -1
Adjacent =-2
Using Pythagoras Theorem
Therefore:
Similarly
(a)
(b)
(c)
Answer:
-2i+8
Step-by-step explanation:
(1+i)(3-5i)
3+3i-5i-5i^2
3-2i-5(-1), because i^2=-1,
3-2i+5
-2i+3+5
-2i+8