Answer:
42
Step-by-step explanation:
We use (BODMAS) :
Brackets
Order/Index
Division
Multiplication
Addition
Subtraction
Now we do bracket first :
7(3²) = 7(9) = 63
Now we do division :
63÷3 = 21
Now we do multiplication :
2 × 21 = 42
Hope this helped and have a good day
Answer:
oof me neither
Step-by-step explanation:
Answer:
x= 8 / 5
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
20(x+2)+31=5(5x+10)+13
(20)(x)+(20)(2)+31=(5)(5x)+(5)(10)+13(Distribute)
20x+40+31=25x+50+13
(20x)+(40+31)=(25x)+(50+13)(Combine Like Terms)
20x+71=25x+63
20x+71=25x+63
Step 2: Subtract 25x from both sides.
20x+71−25x=25x+63−25x
−5x+71=63
Step 3: Subtract 71 from both sides.
−5x+71−71=63−71
−5x=−8
Step 4: Divide both sides by -5.
−5x / -5 = -8 / -5
x= 8 / 5
Answer:
x=4, x=-4
Step-by-step explanation:
x^2-16=0
Add 16 to both sides;
x^2-16+16=0+16
Simplify;
x^2=16
x=, x
=4
factor the number;16
=
-
Factor the number 16;
=-4
Answer:
At each vertex at least 3 faces meet (maybe more).
Step-by-step explanation: