Answer:
3940+278d
Step-by-step explanation:
1. Distribute 14 and 23 through their parenthesis,
2100 + 140d + 1840 +138d
2. Add the common terms,
3940+ 278d
I think that the correct answers are a,d,c
Let
x--------> the number
we know that
11²=121
12²=144
then
x² must be greater than 121 and less than 144
case a) <span>√115
if x=</span><span>√115
then
x</span>²=115-------> is not greater than 121
case b) <span>√121
</span>if x=√121
then
x²=121-------> is not greater than 121
case c) <span>√136
</span>if x=√136
then
x²=136-------> is greater than 121 and is less than 144------> is ok
case d) <span>√150
</span>if x=√150
then
x²=150------> is not less than 144
therefore
the answer is
√136
Answer:
k = - 3
Step-by-step explanation:
Look at the picture*
Negative exponents create the reciprocal of the original number:
2^2=4
2^-2=1/4
4^4=64
4^-4=1/64
