Answer:
11x+4+5=180 ok first we have to put all the naked numbers on one side and the x's number on one side, and by doing that a easier way to do that is you switch the spots but their symbols - and + change so if its negative - its going to turn into a + positive and + to a -
11x = 180 - 5 - 4
11x = 171 and since theres mutliplication 11 times x which is 11x, were going to divide
x = 171/11 and the out come is with decimals (15.54545...etc)
x=11 is incorrect
~batmans wife dun dun dun....
Answer:
Approximately 9.211 times
Step-by-step explanation:
Given
--- half life of helium-5
--- half life of helium-9
Required
How many times greater is y than x
To do this, we simply divide y by x
Apply law of indices
Answer:
D 42,240 ft
Step-by-step explanation:
First find how many miles Anil rides.
9.7-1.7 = 8 miles
There are 5280 feet in 1 mile.
5280*8= 42,240 ft
Answer:
a
Step-by-step explanation:
Answer:
119.05°
Step-by-step explanation:
In general, the angle is given by ...
θ = arctan(y/x)
Here, that becomes ...
θ = arctan(9/-5) ≈ 119.05°
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<em>Comment on using a calculator</em>
If you use the ATAN2( ) function of a graphing calculator or spreadsheet, it will give you the angle in the proper quadrant. If you use the arctangent function (tan⁻¹) of a typical scientific calculator, it will give you a 4th-quadrant angle when the ratio is negative. You must recognize that the desired 2nd-quadrant angle is 180° more than that.
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It may help you to consider looking at the "reference angle." In this geometry, it is the angle between the vector v and the -x axis. The coordinates tell you the lengths of the sides of the triangle vector v forms with the -x axis and a vertical line from that axis to the tip of the vector. Then the trig ratio you're interested in is ...
Tan = Opposite/Adjacent = |y|/|x|
This is the tangent of the reference angle, which will be ...
θ = arctan(|y| / |x|) = arctan(9/5) ≈ 60.95°
You can see from your diagram that the angle CCW from the +x axis will be the supplement of this value, 180° -60.95° = 119.05°.
