What is the sum of the polynomials?
1 answer:
the sum of polynomials is + 6x + 4
Step-by-step explanation:
Question:
(6x+7+) + (
- 3)
<em>Step 1: Open the bracket according to BODMAS rule</em>
6x+7+ +
- 3
<em>Step 2: Arrange</em>
x^{2}[/tex] + + 6x + 7 - 3
<em>Step 3: Simplify</em>
+ 6x + 4
Therefore, the sum of polynomials is + 6x + 4
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Answer:68.3 degrees
Step-by-step explanation:
The diagram of the triangle ABC is shown in the attached photo. We would determine the length of side AB. It is equal to a. We would apply the cosine rule which is expressed as follows
c^2 = a^2 + b^2 - 2abCos C
Looking at the triangle,
b = 75 miles
a = 80 miles.
Angle ACB = 180 - 42 = 138 degrees. Therefore
c^2 = 80^2 + 75^2 - 2 × 80 × 75Cos 138
c^2 = 6400 + 5625 - 12000Cos 138
c^2 = 6400 + 5625 - 12000 × -0.7431
c^2 = 12025 + 8917.2
c = √20942.2 = 144.7
To determine A, we will apply sine rule
a/SinA = b/SinB = c/SinC. Therefore,
80/SinA = 144.7/Sin 138
80Sin 138 = 144.7 SinA
SinA = 53.528/144.7 = 0.3699
A = 21.7 degrees
Therefore, theta = 90 - 21.7
= 68.3 degees
