The solution to the equation 12(b+2) + 3b = -1 is b = -5/3.
Given the equation in the question:
12( b + 2 ) + 3b = -1
To solve the equation 12( b + 2 ) + 3b = -1, first apply the distributive property.
Distribute the 12 across the terms inside the parentheses:
12( b + 2 ) + 3b = -1
12×b + 12×2 + 3b = -1
Simplifying, we get:
12b + 24 + 3b = -1
Collect and combine the like terms on the left side of the equation:
12b + 3b + 24 = -1
15b + 24 = -1
Subtract 24 from both sides of the equation:
15b + 24 - 24 = -1 - 24
15b = -1 - 24
15b = -25
Divide both sides by 15:
b = -25/15
Simplify
b = -5/3
Therefore, the value of b is -5/3.
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Answer: -5/3
Step-by-step explanation:
12(b + 2) + 3b = -1
12b + 24 + 3b = -1
15b + 24 = -1
15b = -1-24
b = -25/15 = -5/3
Cos^2(81°) - sin^2(81°)
Answer:
= (162°)
Step-by-step explanation:
(81°) - (81°)
we know that;
(x°) - (x°) = (2x°)
(81°) - (81°) = (2 * 81°)
= (162°)
Answer:
273
Step-by-step explanation:
65% is 65/100 or 13/20. So 13/20* 420/1. 420* 13 is 5460. 5460 divided by 20 is 273.