Answer: 64
Step-by-step explanation:
By definition, a perfect square is the square of a whole number.
The information given in the problem that you must keep on mind is:
- The number has two digits.
- The number is a perfect square ( Is obtained by squaring a whole number).
- The sum of its two digits is 10.
The number 64 is formed by the digit 6 and the digit 4. The sum of both digits is:

The number 64 can be written as:

Then, it is perfect square.
Answer:
4/5
Step-by-step explanation:
.8% is equal to 80%
80% of 100 is 80/100
simplified the answer is 4/5
ANSWER
1. 3391680
2. 3876
EXPLANATION
1. We want to find the value of:

This is called "12 permutation 7"
Permutation function is defined as follows:

Therefore, we have that:

2. We want to find:

This is called "19 combination 15"
Combination function is defined as:

Therefore, we have that:
Answer:
i don't think so.....
Step-by-step explanation:
An isosceles triangle has two sides equal. Since it's also a right triangle , the angles will be 90°, 45°, 45°.
M = 45°
N = 45°
cos(45°) = sin(45°)
true
tan(45°) = tan(45°)
true
cos(45°) = cos(45°)
true
cos(45°) = tan(45°)
false
sin(45°) = cos(45°)
true