Well first off a term is each of the quantities in a ratio, series or mathematical equation, so every # is a term. And secondly when simplifying you combine the terms that have the same degree, so 3+5 get combines but 7y-3 dont.
a. 3y+2y+y^2+5+y there are 5 terms and the simplified answer is 6y+y^2+5
b. 3y^2+2xy+1+3x+y+2x^2 there are 6 terms and it is already simplified
c. 3xy+5x+2+3y+x+4 there are 6 terms and the simplified answer is 3xy+6x+6+3y
d. 4m+2mn+m^2+m+3m^2 there are 5 terms and the simplifies answer is 5m+2mn+4m^2
Answer:
(a,b)
Step-by-step explanation:
simply we find the midpoint of AC and the midpoint of Bd by dividing over 2
Answer:
2/5
Step-by-step explanation:
3/8 = 375/1000
1/2 = 500/1000
2/5 = 400/1000
Answer:
S.A. = 150.72
Step-by-step explanation:
S .A. = 
4 x 4 x 3.14 = 50.24
3.14 x 4 x 8 = 100.48
100.48 + 50.24 = 150.72
Answer:
52 ft²
Step-by-step explanation:
When you are calculating the amount of cardboard needed to make a box, you are trying to the the <u>surface area</u>.
The formula for surface area of a rectangular prism is:
SA = 2(lw + hl + wh)
The dimensions for the box are written l X w X h (length times width times height).
We know:
l = 4
w = 3
h = 2
The units for surface area is the unit squared. Feet squared is ft². Be sure the include the units.
Substitute these numbers into the formula. When solving, solve in the BEDMAS order (brackets, exponents, division and multiplication, addition and subtraction).
SA = 2(lw + hl + wh) u²
SA = 2((4*3) + (2*4) + (3*2)) ft² Multiply within each smaller bracket
SA = 2(12 + 8 + 6) ft² Add inside the brackets
SA = 2(26) ft² Multiply
SA = 52 ft² Final answer
Therefore 52 square feet of cardboard will be needed to make the box.
