9514 1404 393
Answer:
(x +3)(x -3)(x +2i)(x -2i)
Step-by-step explanation:
The factoring to quadratics makes use of the fact that -36 = (-9)(4).
x^4 -5x^2 -36
= x^4 -9x^2 +4x^2 -36
= x^2(x^2 -9) +4(x^2 -9)
= (x^2 +4)(x^2 -9)
The form for factoring the difference of squares comes into play here. Of course -4 = (2i)^2.
= (x^2 -(2i)^2)(x^2 -3^2)
= (x -2i)(x +2i)(x -3)(x +3) . . . factored to linear terms
Answer: Here's my real world scenario example:
A cookie shop decided to give away cookies to its customers. Normally, when the shop gives away zero cookies for free, they get 4 customers in a day. When they gave away one cookie for free, they got 8 customers in a day. When they gave away two cookies, they got 16 customers in a day. And when they gave away three cookies, they got 32 customers in a day.
<em>I hope this helps! Feel free to give me Brainliest if you feel this helped. Have a good day, and good luck on your assignment. :)</em>
Answer:
2236.77 feets
Step-by-step explanation:
From the attached picture, we are to find x, which is the vertical depth of the submarine.
Using trigonometry based on the illustration in the diagram:
Sinθ = opposite / hypotenus
Sinθ = x (depth of submarine) / distance from ship (4000)
Hence,
Sinθ = x / 4000
θ = 34°
Sin34 = x / 4000
0.5591929 * 4000 = x
2236.7716 = x
Hence, depth of submarine = 2236.77 feets
Point W because the line intersects the y axis at W (0,2). sorry if it’s wrong :/