Answer:
2 OR4 ; both correct
Explanation:
x^2=7
x^4+y^2=50
x^4=(x^2)^2=(7)^2=49 --> 49+y^2=50
y^2=50-49=1 --> y=±
--> y=±1
+1 or -1 both possible --> solve both
+1+w=3 --> w = 3 - 1 = 2
OR
-1+w=3 --> w = 3 + 1 = 4
Answer:
The banjo is a stringed instrument with a thin membrane stretched over a frame or cavity to form a resonator. ... Early forms of the instrument were fashioned by African-Americans in the United States, adapted from African instruments of similar design.
Answer: D
a result of a compromise in which no voters are
satisfied
Explanation:
The species of butterfly that is shown is; Papilio polyxenes.
<h3>What are the species of butterflies?</h3>
Butterflies usually are identified by the colors and patterns shown on their wings. However, for us to identify an organism using a dichotomous key, we must compare the traits of the organism to the first pair of descriptive statements on the key as follows;
1) A swallowtail butterfly is either classified as Papilio glaucus ( where the wings are mainly yellow) or Papilio polyxenes(where the wings are mainly black)
Now, the image of the butterfly given shows that the wings are mainly black, and as a result, we will say that the butterfly specie is called Papilio Polyxenes.
Read more about species of butterflies at; brainly.com/question/16678828
On average The number of trains after a long time is = 2 trains
<u>Given data :</u>
Number of trains = 3
<u>Let's assume :</u>
speed of Train 1 = V₁
speed of Train 2 = V₂
speed of Train 3 = V₃
<h3> </h3><h3> Determine the number of trains after a long time has elapsed </h3>
- Before linkage = 3 trains
- When ( Train 1 and Train 2 links ) = 2 trains
- When ( Train 1 , Train 2 and Train 3 links ) = 1 train
- When ( Train 2 and Train 3 links ) = 2 trains
Therefore the average number of trains after a long time will be
( 3 + 2 + 1 + 2 ) / 4
= 8 / 4
= 2 trains
Hence we can conclude that On average The number of trains after a long time is = 2 trains
Learn more about Average calculations : brainly.com/question/20118982
