I neeed helppp please due today
2 answers:
Answer: (3, 3)
Step-by-step explanation:
There are three general ways of solving a system of equations:
- Elimination
- Substitution
- Graphing
When solving systems of equations with graphing, look for points that overlap with each other or cross, and that will be the solution for the system. There might be one, two, or more than two solutions.
Please refer to the attachment below for the graph of the two equations.
- Red line: y = x + 6
- Blue line: y = -3x - 6
Hope this helps!! :)
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Answer:
d. −7/32
Step-by-step explanation:
The expression that we have to evaluate in this problem is:
We have to evaluate this expression for:
x = -2
y = 4
We start by rewriting the expression by rewriting it using the following:
So the expression can be rewritten as
Now we observe that:
Therefore, by substituting x = -2 and y = 4 into the expression, we find:
∠B = 77°, a = 7.42 and b = 12.61
Solution:
Given triangle ABC.
∠A = 35°, ∠C = 68°, c = 12
To find the measure of ∠B:
Sum of all the angles of the triangle = 180°
⇒ ∠A + ∠B + ∠C = 180°
⇒ 35° + ∠B + 68° = 180°
⇒ 103° + ∠B = 180°
⇒ ∠B = 180° – 103°
⇒ ∠B = 77°
To find the length of a and b:
The side opposite to angle A is a.
The side opposite to angle B is b.
Using law of sine,
Do cross multiplication, we get
Divide by 0.9271 on both sides, we get
⇒ a = 7.42
Again by law of sine,
Do cross multiplication, we get
Divide by 0.9271 on both sides, we get
⇒ b = 12.61
Hence ∠B = 77°, a = 7.42 and b = 12.61.