Answer:
40
Step-by-step explanation:
1.Kknow the following information;
Remember, the sum of degrees of angles in a triangle is 180.
So say if a traingle contained;
<1, <2, <3,
Then:
<1 + <2 + <3 = 180
2. State the given, and set up an equation;
In this case, it is given that;
<1 = 115
<2 = 25
Therefore, set up the equation;
115 + 25 + <3 = 180
3. Solve the equation;
115 + 25 + <3 = 180
Simplify,
140 + <3 = 180
Inverse operations,
140 + <3 = 180
-140 -140
<3 = 40
1,2 and 5 is the answers I think
AC side and BC side have the same length because ΔCDA and ΔCDE are congruent.
The equation will be
AC = BC
Solve the equation
AC = BC
2x = 3x - 10
2x - 3x = -10
-x = -10
x = 10
The value of x is 10
Answer:
hi there!
The correct answer to this question is 7.51
Step-by-step explanation:
you would use tangent for this question
tan(43) * 7 equals x
Polynomial that represents a difference in cubes.
x³ - 64 = 0
x³ = 64
∛x³ = ∛64
x = 4
Correct Steps for factoring the polynomial 5x³ - 40
5(x³ - 8)
5((x)³ - (2)³)
5(x - 2)(x² + 2x + 4)
To check:
5(x - 2)(x² + 2x + 4)
(5x - 10) (x² + 2x + 4)
5x(x² + 2x + 4) - 10(x² + 2x + 4)
5x³ + 10x² + 20x - 10x² - 20x - 40
5x³ + 10x² - 10x² + 20x - 20x - 40
5x³ - 40
