Answer:
153
Step-by-step explanation:
i = square root of -1
i = √-1
(3+12√-1) (3-12√-1)
√a times √b = √ab
a√b times c√d = (a times c) √ (b times d)
9 - (36√-1) + (36√-1) - (144(√-1)^2) =
9 - 0 - (144 * -1) =
9 - 0 - (-144) =
9 - (-144) =
9 + 144 =
153
*** funny thing is if you put
(3+12i) (3-12i)
in a calculator
it works!
it gives you the answer 153
another way:
Expand the expression using
(a-b) (a+b) =
a²-b² :
3²-(12i)²
Simplify using exponent rule with same exponent
(a*b)^n =
a^n*b^n:
3²-12²* i²
Calculate the power:
9-144* i²
Rewrite by definition
i²=-1:
9–144×(−1)
Calculate the product or quotient: 9+144
Calculate the sum or difference: 153
Answer: 153
gathmath
Answer:
C-0.1
Step-by-step explanation:
0.1 is between -3.8 and 0.
Hope can help you.
Z= 3(-4-a)/4(4n+3p)
Multiply z by the denominator of the function to start to get things all on one side.
Z(4(4n+3p)=3(-4-a)
Divide by 3 to remove the parentheses from the right side.
4Z(4n+3p)/3=-4-a
Add four to both sides to remove it from the right.
4Z(4n+3p)+4/3=-a
Multiply by -1 to get a all by itself.
-4Z(4n+3p)+4/3=a
Answer:
she needs 25% more
Step-by-step explanation:
every two gifts is 25%. so 2,4,6 thats 75% so she needs 25% more to make 100%
12 ×12 =144 squares. an array is found by multiplying length units by width units. Much like finding the area