Magnitude of vector V =√(3²+7²) = √58
Hence: U= -3/√58 - 7/√58
OR multiply numerator and denominator by √58
U = - (3√58)/58 i - (7√58)/58 j
Answer:
30
Step-by-step explanation:
1.Substitute the x for 12.
2.Multiply the 2 by 12.
3.Then add 6 to your answer.
Question:
Isabella pitches for her high school softball team. Of the 7 pitches she throws, 5 are strikes. She uses a standard deck of cards to model her pitches, with hearts, clubs, and spades representing strikes. Which statement about her model is true?
Answer:
B. Her model can be improved the most by removing the queens and kings of hearts, clubs, and spades.
Explanation:
I took the test and passed.
Could be 21. Try replacing function designators with the actual functions.
Roots: - √5 , √5, and - 3
=> these are factors of the polynomial: (x + √5), (x - √5), and (x + 3).
Multiply those three factors:
(x + √5) (x - √5) ( x + 3) = [x^2 - 5] ( x + 3 ) = x^2 + 3x^2 - 5x - 15
Therefore the polynomial x^2 + 3x^2 - 5x - 15 is a polynomial with the given roots.
Answer: option B. x^3 + 3x^2 - 5x - 15