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rosijanka [135]
3 years ago
14

Please I need help!!

Mathematics
1 answer:
Gelneren [198K]3 years ago
3 0
1 plus to the negative Peter plus the relative integers
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If cos 0=2/3, what are the values of sin 0 and tan 0?
morpeh [17]

Answer:

Below

Step-by-step explanation:

● cos O = 2/3

We khow that:

● cos^2(O) + sin^2(O) =1

So : sin^2 (O)= 1-cos^2(O)

● sin^2(O) = 1 -(2/3)^2 = 1-4/9 = 9/9-4/9 = 5/9

● sin O = √(5)/3 or sin O = -√(5)/3

So we deduce that tan O will have two values since we don't khow the size of O.

■■■■■■■■■■■■■■■■■■■■■■■■■

●Tan (O) = sin(O)/cos(O)

● tan (O) = (√(5)/3)÷(2/3) or tan(O) = (-√(5)/3)÷(2/3)

● tan (O) = √(5)/2 or tan(O) = -√(5)/2

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=2%20%2B%202" id="TexFormula1" title="2 + 2" alt="2 + 2" align="absmiddle" class="latex-formula
Semmy [17]
2+2=4 because 1+1+1+1 equals and those 2 problems are the same. You got to at least know 1+1+1+1.!
6 0
3 years ago
4(a + 2) = -4<br> whats A
OLga [1]
The answer is -3 because -3+2=-1 then -1(4)=-4
4 0
3 years ago
Read 2 more answers
A printer can print 12 pages in 9 seconds. What is the closest estimate of the
ExtremeBDS [4]

Answer:

72

Step-by-step explanation:

there are 60 seconds in a minute so about 6 9 seconds in a minute. then there is 12 pages per 9 seconds and since there is 6 9 seconds then you can just multiply 6 by 9 to get the answer 72

5 0
3 years ago
Read 2 more answers
Helppp can u finish the problem plz show your work!!!!
sveticcg [70]
_
2.6
__
3/8.0
-6
-------
20
- 18
--------
2

_
answer: 2.6
4 0
3 years ago
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