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:
35
Step-by-step explanation:
Multiply each side of ABC by 5 to get the values of PQR
Answer:
The vectors form an obtuse angle.
Step-by-step explanation:
On a graph, -5, 1 is in the second quadrant and 8, 6 is in the first. The angle about the orgin is obtuse.
Finding the dot product between them results in a negative, which also means the angle is obtuse.
Answer:
x = 2 and x = 2
Step-by-step explanation:
Simplify this problem by factoring out the coefficient 2:
y=2x^2-8x+8 => 2(x^2 - 4x + 4)
Note that x^2 - 4x + 4 is a perfect square: (x - 2)^2.
y=2x^2-8x+8 = 2(x - 2)^2
Setting this last result = to 0, we get y = 2(x - 2)^2 = 0, which has a repeated solution: x = 2 and x = 2.
Answer:
The expression is equivalent to .
Step-by-step explanation:
In this exercise we must transform into its standard form, that is a polynomial of the form:
(1)
Where:
- Dependent variable.
- Independent variable.
, , - Coefficients.
Let , now we proceed to convert it into its standard form:
1) Given
2)
3) Distributive property
4) /Commutative and distributive properties
5) /Definition of subtraction/Result
The expression is equivalent to .