Answer:
a^3+b^3=(a+b)(a^2-ab+b^2)
Step-by-step explanation:
x^3+27=(x+3)(x^2-3x+9)
Let the number of equations be x and the number of vocabulary questions be y.
x + y = 26 (total num of questions)So, y = 26 - x (eliminate one variable to solve for one first)2x + 5y = 100 (total points)2x + 5 (26 - x) = 100 (substituting 26 - x in place of y)
2x + 130 - 5x = 100 (distributing the 5)-3x = -30x = 10
Since there are 10 equation questions, there must be 16 vocabulary questions to satisfy the total number of questions in the test...
The third graphic system shares the same set of solutions.
Notice that the first graph is two parallel lines that never cut.
The second graph has two lines that intersect at a point. Therefore, compare a single solution.
The third graph shares the whole set of solutions since, for each x, both lines take the same Y value
answer
Third graphic.
Answer:
1. 8.04
2. 20 feet
3. d
4. c
5. Ed = 4
Step-by-step explanation:
Pythagoras theorem
a² + b² = c²
4² + b² = 6²
16 + b² = 36
b² = 20
square root 20 = 4.47
6 ÷ 4.47 = 1.34
6 × 1.34 = 8.04
It is given in this question that angle 1 and angle 2 are linear pair .
LInear pair are those angles , whose sum is 180 degree.
That is sum of measurements of angle 1 and angle 2 must be 180 degree. That is
Combining like terms
Subtracting 46 from both sides
Dividing both sides by 2
So the two angles are
