Answer:
(A)
Step-by-step explanation:
Point A is at (-2,4)
Rule of a 180° rotation about the origin: (x,y) --> (-x,-y)
Using the rule, (-2,4) will become (2,-4).
A' should be (2,-4) or Option A.
Answer:
0.25y +7y
Step-by-step explanation:
REMEMBER DISTRIBUTION
Answer:
The Answer is B. 2-5n
Step-by-step explanation:
Multiply 2 by everything within the parenthesis and it leaves you with 3n+ 2-8n
Then combine like terms which are +3n and -8n which leaves you with -5n
Answer:
The approximate length of the pendulum is 46.08 ft
Step-by-step explanation:
The time (t) of pendulum oscillation is given as;

where;
L is the length of the pendulum
g is acceleration due to gravity = 9.8 m/s² = 32.15 ft/s²
t is the time given as 2.4 π seconds
From the equation above, make L the subject of the formula;

Therefore, the approximate length of the pendulum is 46.29 ft
The closest option is 46.08 ft
Answer:
{-2/7, 2/7}
Step-by-step explanation:
Here you're being asked to solve the given equation 49w^2-4=0 for w with the hint that the solutions are fractions.
49w^2-4=0 is the product of the sum and difference of two squares:
(7w - 2)(7w + 2) = 0
Setting each factor equal to zero and solving for w, we get:
{-2/7, 2/7} as the solutions.