Put the values of x = 4 and y = -2 to the expression 5y² + 3xy - 2x.
Use PEMDAS:
P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right).
There are 15 boys and 15 girls at a party. Each boy shakes hands with exactly five people and each girl shakes hands with exactl
2 answers:
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Answer:
Puppy Liz runs 34.61 ft.
Step-by-step explanation:
From the figure we can extract two triangles: one with angle 34° and adjacent 40ft, the other with angle 34°+23° and adjacent 40ft.
Let us call the distance from the pole to the fire hydrant , and the distance from the pole to the bench
, then the distance
from the fire hydrant to the bench is
which is the distance the Puppy Liz runs.
Now, from trigonometry we have
and
Therefore, the distance Puppy Liz runs is
