So here are a few rules with exponents that you should know:
- Multiplying exponents of the same base:
- Dividing exponents of the same base:
- Powering a power to a power:
- Converting a negative exponent to a positive one:
<h2>1.</h2>
Firstly, solve the outside exponent:
Next, convert the negative exponents into positive ones:
<u>Your final answer is 
</u>
<h2>2.</h2>
For this, just divide:
<u>Your final answer is 
</u>
<h2>3.</h2>
For this, convert all negative exponents into positive ones:
<u>Your final answer is 
</u>
Answer:
First one- The ? across from 70 degrees is 70 degrees, and the ones on the side are both 110 degrees.
The second one- The one across 53 degrees is 53 degrees and the ones are the side are both 127 degrees.
Step-by-step explanation:
Take the shown angle and subract that by 180 degrees to get your answer for the missing angles. And the one across from the shown angle is the same number.
Hope this helped im not sure if its right though.
A=xy
If there is 10% increase in x then,
New value of x = x + 10%of x =1.1x
similarly for y
New value of y after increase= 1.1 y
New value of A after increase in x and y = 1 .1x × 1.1 y= 1.21xy
now
increase amount in A= New value of A - old value of A
=1.21xy - xy= 0.21xy
percentage increase in A= (0.21xy÷xy )× 100= 21%
Division is repeated subtraction, in the loosest sense.
