Answer:
Instead of solving the slope, they subtracted the numerator parts, then they subtracted the denominator parts . Then, they simplified.
Step-by-step explanation:
-4 - 6 = -8
0 - 4 = -4
That is how they got -8/-4 = 2
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Answer:
a = 3,137
Step-by-step explanation:
We have to use the sin rule to solve. THis gives ratios of side and opposite side's angle's sin.
Sin rule is:
First, we know there are 180 degrees in 3 angles of a triangle, so lets find ∠A:
∠A + ∠B + ∠C = 180
∠A + 11 + 75 = 180
∠A + 86 = 180
∠A = 180 - 86
∠A = 94
Now since we know the angle B and side b pair, we can relate with a and write the sin rule as:
Now we cross multiply and solve for side a:
So last answer choice is right, a = 3137
Hi there! So 39,300 copies of a book were sold on debut month of release, and that represents 6.3% of all copies sold to date. To find the total amount of copies sold, we can write and solve a proportion. Set it up like this:
39,300/x = 6.3/100
We set it up like this because 39,300 is part of the total amount, and it represents 6.3% of the total book sales. Percents are parts of 100, which is why 6.3 is above 100. Let's cross multiply the values. 39,300 * 100 is 3,930,000. 6.3 * x is 6.3x. that makes 3,930,000 = 6.3x. Divide each side by 6.3 to isolate the x. 6.3x/6.3 cancels out. 3,930,000/6.3 is 623,809.5238 or 623,810 when rounded to the nearest whole number. There. The total amount of copies sold to date is about 623,810.
Answer:
the coefficient in the equation is 13
Step-by-step explanation:
a coefficient is a number that is in front of a variable. 13 is in front of the variable u so it is the coefficient.