The E3 is the same as writing 10^3.
The answer would be 7.9 x 10^3
First, some housekeeping:
cos = 12/13 is incomplete; "cos" must have an argument (input).
cos x = 12/13 is fine; here "cos" has the argument (input) x.
Given that cos x = 12/13, find sin x. To do this, we'll need to find the length of the opposite side, given that the hypo length is 13 and the adj. side length is 12.
12^2 + opp^2 = 13^2, or opp^2 = 169-144 = 25.
Then the opp side could be either 5 or -5. Let's assume that it's +5, and that angle x is in the first quadrant.
Then sin x = opp / hyp = 5/13 (answer)
cos 2 is an entirely different kind of problem. Here you are told what the argument (input) to the cosine function is (it is 2, which here means 2 radians).
Using a calculator: cos 2 = -0.416. Note that the angle 2 rad is in QII, which is why the "adjacent side" is negative and also why the cos of 2 is negative.
Answer:
x = 9.889
Step-by-step explanation:
9 ( 2x + 1 ) - 187 = 0
18x + 9 = 187
18x = 178
x = 9.889
I am pretty sure that this is the answer. Tell me if I am wrong.
Can I get brainliest
Answer:
256
Step-by-step explanation:
8↑2 + 8↑2 +8↑2+8↑2+8↑2+8↑2+8↑2+8↑2
<h3>8x2x2=32 </h3><h3>8x2=16x2=32</h3><h3>32x8= 256</h3><h3> +1 32</h3><h3> x 8</h3><h3>______</h3><h3> 2 5 6</h3><h3>2x8=16 **then add the +1 to the 3**</h3><h3>3x8=24 </h3><h3 />
You need to distribute the 3, so your answer would be 6b-3
