Answer:
Step-by-step 
If you don't want to have anything left over, then the highest common factor is 
36: 2 * 2 * 3 * 3
45: 3 * 3 * 5
The highest common factor is 9.
So he can make nine packages with
4 pencils in each one and
5 erasers in each package.
 
        
             
        
        
        
Answer:
8.9 cm to 1 dec. place.
Step-by-step explanation:
First, use Pythagoras to find the length of BD.
BD^2 = 6^2 + 7^2 = 85
BD = √85.
BM = √85 / 2.
Consider the triangle TBM, by Pythagoras:
TB^2 = BM^2 + MT^2
MT^2 = 10^2 - (√85 / 2  )^2
= 100 - 21.25
= 78.75.
MT = 8.874
 
        
             
        
        
        
The equivalent expression of the<u> different of two square</u> is -1
Given the following expressions
a cot α = 1
a = 1/cot α = sinα/cosα
b = 1/cos α
We are to find the expression a² - b²
According to <u>difference of two squares;</u>
a² - b² =  (a + b) (a - b)
Substitute the given expressions into the formula as shown:

This shows that the equivalent expression of the<u> difference of two squares</u> is -1
Learn more here: brainly.com/question/11084694
 
        
             
        
        
        
20 is 85% of the number 23.5294
        
                    
             
        
        
        
Answer:
C. 70+20
Step-by-step explanation: