I think p=4
How I solved it: 
5(-2)+2p+2(-1)=2p
-10+2p+-2=2p So cross out last 
 -2p -2p 2p:)
= -10+2p+-2
 +10 +10 Cross out the 10
= 2p=8
= divide both sides by 2p
= 2p/2= 8/2
= cross out the 2.
= which leaves 
= p=4 we get 4 because we divide 8 to 2:)
I don’t know if I’m right but yea...
        
             
        
        
        
Answer:
D) 57.5°
Step-by-step explanation:
As the question is not complete. So, let's suppose it is a right angle triangle then, we can apply Pythagoras theorem to calculate the hypotenuse or the third side. 
Pythagoras Theorem =  =
 =  
 
a = 7 and b = 11
 = 49
 = 49
 = 121
 = 121
Plugging in the values, we will get:
 = 49 + 121
 = 49 + 121 
 = 170
 = 170
c = 
To calculate the unknown angle B, we can use law of sine. 
Law of sine =  =
 =  =
 =  
 
So, 
 =
 = 
 =
 =  
Sin90 = 1
sinB = 
B =  (
 ( )
)
B = 57.5°
 
        
             
        
        
        
First set everything to 0.

Giving you A= 1 , B= 1 and C= -5
Then input everything into the quadratic formula and either solve by hand or use a calculator.
Note exact values are found by hand, decimals are found using a calculator.
 
        
        
        
Answer:
a. $270
b. $3,278.18
Step-by-step explanation:
Given that 
The principal amount is $3,000
Annual rate of interest is 3%
And, the time period is  3 years
We need to find out the simple interest & compound interest 
The following formulas should be used
a. For simple interest 
= Principal × rate of interest × time period
= $3,000 × 3% × 3 years
= $270
b. For compound interest 
= Principal × (1 + rate of interest)^time period
= $3,000 × (1 + 0.03)3
= $3,000 × 1.03^3
= $3,278.18
 
        
             
        
        
        
Answer:
it's probably 8.1
Step-by-step explanation:
:)
P.S: You could use a calculotor next time