Answer:
4600
Step-by-step explanation:
Answer:

Step-by-step explanation:
The imaginary unit is
.
Now 63 itself is not a perfect square but 63 does contain a factor that is.
63=9×7 and 9 is a perfect square.
So
.

Answer:
28°
Step-by-step explanation:
You're given that line DE and line FG are parallel and KL and FG are perpendicular. Then you can find out angle ∠BAC by using the vertical angles property: ∠BAC=62°. Then since KL and FG are perpendicular ∠ABC = 90°. So you find the angle ∠BCA by finding the sum of interior angles: 62+90+∠BCA=180, therefore ∠BCA is 28°. Finally, ∠x or ∠JCG = 28 because ∠JCG and ∠BCA are vertical angles and congruent.
Answer: The answer is $4.20
Step-by-step explanation:
Answer:

Step-by-step explanation:
In the figure you can identify up to 3 straight triangles.
To solve the problem, write the Pythagorean theorem for each triangle.
<em>Triangle 1</em>

<em>Triangle 2</em>

<em>Triangle 3</em>

Now substitute equation 2 and equation 3 in equation 1 and solve for y.






substitute the value of y in the second equation and solve for z




