8: 20
9: 90
I am so sorry if this is wrong. I am not good at this type of things
Answer:
see below
Step-by-step explanation:
9 ^-5 * 9^-3
When multiplying these we ADD the exponents:
9^-5 * 9^-3
= 9^(-5 + -3)
= 9 ^-8
= 1/9^8 Option A
2. 2^14 / 2^7 This is a division so we SUBTRACT the exponents:-
= 2^(14 - 7)
= 2^7 (answer)
3. If the triangle is a right angled one then it will obey Pythagoras Theorem so:-
13^ = x^2 + 5&2
x^2 = 13^2 - 5^2
x^2 = 144
x = 12 (answer)
4. The last choice is a crucial step.
The total area of the triangles is the same in both large squares so the area of the large square e^2 = a^2 + b^2 ( the 2 squares in the left side large square).
Answer:
x € R
Step-by-step explanation:
3 − 4x − 10 = −7 − 4x
-4x + 4x = -7 - 3 + 10
0 = 0
x € R
Answer:
4 3/7
Step-by-step explanation:
Step 1:
x - 3/7 = 4
Step 2:
x = 4 + 3/7
Answer:
x = 4 3/7
Hope This Helps :)
