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lina2011 [118]
3 years ago
14

The equation -7(u-3) = 70 is solved in several steps below.

Mathematics
1 answer:
Gre4nikov [31]3 years ago
6 0

Answer:

Etymology ois teh acrorect anwser becuae it sues the rosdws

Step-by-step explanation:

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Question is 15 points
Blababa [14]

sin(x+y)=sin(x)cos(y)-cos(x)sin(y)

also, remember pythagorean rule, sin^2(x)+cos^2(x)=1

given that sin(Θ)=4/5 and cos(x)=-5/13

find sin(x) and cos(Θ)


sin(x)

cos(x)=-5/13

using pythagorean identity

(sin(x))^2+(-5/13)^2=1

sin(x)=+/- 12/13

in the 2nd quadrant, sin is positve so sin(x)=12/13


cos(Θ)

sin(Θ)=4/5

using pythagrean identity

(4/5)^2+(cos(Θ))^2=1

cos(Θ)=+/-3/5

in 1st quadrant, cos is positive

cos(Θ)=3/5


so sin(Θ+x)=sin(Θ)cos(x)+cos(Θ)sin(x)

sin(Θ+x)=(4/5)(-5/13)+(3/5)(12/13)

sin(Θ+x)=16/65



answer is 1st option

7 0
3 years ago
Solve 12 3/8 divided by 5 1/2 <br><br><br> Please explain :)
ella [17]

Answer:9/4

Step-by-step explanation:

99/8*2/11=9/4*1/1=9/4

You can cancel out 99 and 11 to 9 and 1 as they are multiples of eac hother and you can do the same for 8 and 2 to 4 and 1

7 0
3 years ago
Read 2 more answers
To eliminate 6X you would Transform 2x by multiplying what number ?
NARA [144]

Answer:

-3

Step-by-step explanation:

to eliminate 6x we need the same no. 6x but that should be negative. so

2X × -3 = -6X

and

6X+(-6X)=0

5 0
3 years ago
Pls answer the question in the picture.
mr_godi [17]

Answer:

5:2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the value of y.<br><br> PLS FAST ANSWER
Nimfa-mama [501]

Answer:

y = 6

use sine law

y/sin 60°=4√3/sin90°

4 0
3 years ago
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