Answer:
the third side is 40 m long
Step-by-step explanation:
The perimeter of the triangle is the sum of its three sides, and they give you what that value in meters is (120 m)
Your are given the length of two of them: 30 m and 50 m, and need to find the third one (let's call it "x" for this unknown side)
Now set the following equation:
Perimeter = side 1 + side 2 + side 3 --> replace these with the info you know
120 m = 30 m + 50 m + x --> add 30 m and 50 m obtaining 80 m
120 m = 80 m + x --> now solve for x (isolate the x on one side) by subtracting 80 m from both sides
120 m - 80 m = x --> perform the subtraction 120 m - 80 m = 40 m
40 m = x
Which tells us that the third unknown side has a length of 40 m
<u>Answer:</u>
The variable that has the highest power is considered to be the degree of polynomials in an algebraic equation.
A column:
1)
.
The degree is 3.
2)
.
The degree is 2.
3) 
The degree is 1.
B column:
1) 
The degree is 2.
2) 
The degree is 2.
3) 
The degree is 3.
A×B columns:
While Multiplying two terms in a equation, if the variables are same then multiply the constant value and sum the exponent value.
1)
.
=
The degree is 5.
2)
.
=
.
The degree is 4.
3)
.

The degree is 4.
Answer:
I think that C) and D)
Step-by-step explanation:
I think this because if you look at 3.5 secounds it came down and after 1.75 secounds the ball hit the ground. A) wouldn't be because it came down at 3.5 secounds not coming up. B) wouldn't be because the ball droped after 1.75 secounds not come up.
Exponential laws
x^-m=1/(x^m)
and (x^m)(x^n)=x^(m+n)
so
(3^-4)(3^2)=
3^(-4+2)=
3^-2=
1/(3^2)=
1/9
the answer is A