Answer:
A
Step-by-step explanation:
Slope=(1-(-13))/(0-2))=-7. m is - 7 which is negative.
Answer:

Step-by-step explanation:
formula for area of a parallelogram is
where
stands for base and
stands for height.


X=32 because both equations are equal to 180 degrees (3x+22°+x+30°=180) just solve that equation and you’ll get your answer
Number 1 is answer 1 Number 2 is answer 3 Number 3 is answer 4
Answer: 525 cycles per second.
Step-by-step explanation:
The equation for inverse variation between x and y is given by :-
(1)
Given : The length of a violin string varies inversely with the frequency of its vibrations.
A violin string 14 inches long vibrates at a frequency of 450 cycles per second.
Let x = length of a violin
y= frequency of its vibrations
To find: The frequency of a 12 inch violin string.
Put
in equation (1) , we get
Divide both sides by 12 , we get

Hence, the frequency of a 12 inch violin string = 525 cycles per second.