Answer:
Step-by-step explanation:
-------------------------- (1)
-------------------------- (2)
Multiply Eq. (1) by 13 and (2) by 9
<u>Equation (1):</u>
--------------------(3)
<u>Equation (2):</u>
------------------------(4)
Subtract Eq. (2) from (1)
39x - 36x = -264
3x = -264
Dividing both sides by 3
x = -88
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
<u>Put x = -88 in Eq. (1)</u>
3(-88)+9y³ = -21
-264 + 9y³ = -21
9y³ = -21 + 264
9y³ = 243
Dividing both sides by 9
y³ = 27
Taking cube root on both sides
y = 3
Ordered Pair = (x,y) = (-88,3)
Hope this helped!
<h3>~AnonymousHelper1807</h3>
33.33333333333333333 seconds for every dance with couple
9514 1404 393
Answer:
72.5° ≈ 73°
Step-by-step explanation:
The ladder length is the hypotenuse of the right triangle that has the distance from the building as its base and the height up the building as the height of the triangle. The given dimensions are those of the side adjacent to the angle and the hypotenuse.
The appropriate trig relation is ...
Cos = Adjacent/Hypotenuse
cos(angle) = 6/20
The inverse cosine function (arccos) is used to find the angle from its cosine.
angle = arccos(6/20) ≈ 72.54°
The angle is 72.5° rounded to tenths, or 73° rounded to degrees.
Answer:
That is so hard
Step-by-step explanation:
no explanation
I think the answer should be 6.
