Answer:
umm is it a quadrilateral
Step-by-step explanation:
Answer: a=600
Step-by-step explanation:
(a+200)/400=2
a+200=2×400=800 so
a+200=800
a=600 because 800-200=600
Hope this helps. Stay healthy and safe and have a blessed and wonderful day and I hope you had a good Easter!
- Cutiepatutie
Answer:
3 , -3.5
Step-by-step explanation:

Answer:
(
,
) = (30, 16)
Step-by-step explanation:
First find the similarity
Since you know the legnth of the hypotenuse (the longest one) for both traingles, you can find the similarity by dividing the longer by the shorter:
50 ÷ 20 = 2.5
The similarity between the 2 triangles is 2.5.
Now find the length of
on the longer one, use the shorter one's length and the similarity:
12 × 2.5 = 30
So the length of
is equal to 30
Now lets find
, lets use the length of the larger triangle this time and divide the length of the longer leg (there are 2 legs in every triangle, if you don't know the hypotenus's length, use the pythagorean theorem) and divide it by the similarity:
40 ÷ 2.5 = 16
= 16
WooHoo! (
,
) = (30, 16)
Velocity is given by:
velocity=wavelength×frequency
We note that the wavelength of a wave is twice the length of the string (2w) in the first harmonic.
velocity=329 m/s
wavelength=2w
frequency=392
substituting the values in our equation we get:
329=2w(392)
329=784w
solving for w we get
w=329/784
w= 0.41964~0.42 m