4(10+3)
40+12
52
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Hope this helps you
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3/5t -4 -7/10t = -2 (as you know 3/5 = 6/10) so
6/10t - 4 - 7/10t = -2
Simplify
-1/10t -4 = -2
add 4 to both sides
-1/10t - 4 + 4 = -2 + 4
-1/10t = 2
multiply -10 to both sides
-1/10t *(-10) = 2 * (-10)
Simplify
t = -20
Answer first one t = -20
Answer:
50°
Step-by-step explanation:
sin 40° = cos 50°
Hope it helps you in your learning process.