Answer:
f = 22
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
140° is an exterior angle of the triangle, thus
4f + 1 + 51 = 140, that is
4f + 52 = 140 ( subtract 52 from both sides )
4f = 88 ( divide both sides by 4 )
f = 22
Answer:
The second and the third one
Step-by-step explanation:
first, distribute -6 to (2b + 1), giving you -12b - 6, and then on the another side of the equation, distribute -2 to (5 + 4b) giving you, -10 - 8b. now we need to put our coefficients on one side so we will add 8b to each side of the equation, giving us -6 = -10 - 8b + 12b, then we will add 10 to both sides of the equation giving us, 10 -6 = -8b +12b, this gives u 4 = 4b. then, you would solve for b, which equals 1.
Answer:
The answer is A. .
Step-by-step explanation:
To find the difference of this problem, start by simplifying the denominator, which will look like . Next, multiply by to create a fraction with a common denominator in order to subtract from . The problem will now look like .
Then, simplify the terms in the problem by first multiplying and , which will look like . The next step is to combine the numerators over the common denominator, which will look like .
Next, simplify the numerator, and to simplify the numerator start by factoring 3 out of , which will look like . Then, subtract 14 from -7, which will look like . The final answer will be .