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uysha [10]
3 years ago
11

Find [2(cos240°+sin240°)]^4

Mathematics
2 answers:
FrozenT [24]3 years ago
8 0

Answer:

41.78

lmk if u need an explanation

love history [14]3 years ago
3 0
I’m not sure try using a graphing calculator
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Um... help!!!<br> Which of the following expressions is equivalent to −1/4y − 2 1/4y + 1/2 (4−2y)?
Serggg [28]

Answer:

4-7y

---------

  2

Step-by-step explanation:

^ thats a fraction but anyway i dont know what the choices were so I simplified it

3 0
3 years ago
In Chemistry, Seth recorded the weight of copper tubing as 15.4 grams. The actual weight was 15.8 grams. What is his percent of
givi [52]

Answer: -2.6%

Step-by-step explanation:

Percent error is the difference between the measured and known value, and then we divide by the known value, and then multiply by 100%.

Estimated.number = 15.4 grams.

Actual number = 15.8 grams

Percentage error = (Estimated number - Actual number)/Actual number × 100

= (15.4 - 15.8)/15.8 × 100

= -0.4/15.8 × 100

= 0.0253 × 100

= 2.53

= -2.6% approximately

8 0
4 years ago
O,60 is the same rotation as O,<br><br> -300<br> 120<br> 300
Luba_88 [7]

Answer:

-300

Step-by-step explanation:

A counter-clockwise rotation is positive.

A clockwise rotation is negative.

Start at the top and go counter-clockwise 60 degrees.

Start at the top and go clockwise 300 degrees.

You end up at the same point.

It is -300 because a clockwise rotation is negative.

Here is a link with my work:

https://docs.google.com/document/d/1qWHf3acY0HKyWf8hU-_CKpbPZO214G__EGPvn53vM2I/edit?usp=sharing

<em>Hope this helps! :)</em>

4 0
3 years ago
Read 2 more answers
How many time does 217.39 go into 5000
lukranit [14]

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

tinyurl.com/wpazsebu

7 0
4 years ago
PLZ HELP ME ITS DUE TODAY!!!!!
zzz [600]

Answer:

the last one makes more sense compared to all the other choices.

3 0
3 years ago
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