Answer:
x = 15
Step-by-step explanation:
1. Combine like terms
2x - 3x = -x
2. Rewrite original equation
-x + 4 = -11
3. Subtract four from both sides of the equation.
-x + 4 = -11
- 4 - 4
-x = - 15
4. Divide by -1 on both sides to get rid of the negative signs:
x = 15
Answer:
C: y ≤ 2x − 2 y > −x + 3
Step-by-step explanation:
The shading for region A is above a dashed line with negative slope, so will be the solution of an inequality that matches y > -ax +b. Choices A and C have such an inequality.
The shading for region B is below a solid line with positive slope, so will be the solution of an inequality that matches y ≤ ax +b (for some positive a). Choice C is the only one wht the appropriate inequality symbol.
Comparing choice C in detail with the graph, we find that it matches. The line with negative slope has a slope of -1 and a y-intercept of 3, so region A matches y > -x+3. The line with positive slope has a slope of +2 and a y-intercept of -2, so region B matches y ≤ 2x -2.
He uses sin(x):
sinx = opposite side/hypotenuse = y/ (distance eath-sun)
Since x is known and y is known, then:
Distance earth-sun = y/sinx
In a geometric sequence, the numbers are found by multiplying each number by a fixed amount called a common ratio(r).
a1....this is ur first number....so since a1 = 3, ur first number is 3...and to find ur next numbers, multiply each number by r, the common ratio (which equals 0.5)
first number = 3.......3 x 0.5 = 1.5
second number = 1.5......1.5 x 0.5 = 0.75
third number = 0.75
si the first 3 terms are : 3, 1.5, 0.75
Answer:
81.
Step-by-step explanation:
9 * 9 = 81