Answer: D. 8x² + x + 3
Sum means the answer to an addition problem. To find the sum of polynomials, we will add like terms.
<h2>What are like terms?</h2>
Like terms can be combined using addition or subtraction and have the same variables. Constants are also like terms with each other because they have no variables.
<h2>Solve</h2>
(4x² + 1) + (4x² + x + 2) Starting equation from the question
= 4x² + 1 + 4x² + x + 2 Remove brackets
= 4x² + 4x² + x + 1 + 2 Rearrange to group like terms together
= 8x² + x + 1 + 2 Add like terms with the same 'x²' variables
= 8x² + x + 3 Add like terms that are constants
Learn more about adding polynomials here:
brainly.com/question/1311115
Answer:
2/5
Step-by-step explanation:
slope is the "inclination" of a line, so to be parallel they must have the same slope
<u><em>Answer: m=2 and 2=m *The answer should be have positive sign.*</em></u>
Step-by-step explanation:
4m-7+10=15-2m ← Group like terms
add/subtract numbers
-7+10=3
4m+3=15-2m
subtract by 3 both sides of an equation.
4m+3-3=15-2m-3
simplify.
4m=-2m+12
add 2m both sides of an equation.
4m+2m=-2m+12+2m
simplify.
6m=12
divide by 6 both sides of an equation.
6m/6=12/6
simplify by equation.
12/6=2
6*2=12
2*6=12
12/2=6
m=2
Hope this helps!
Thanks!
Have a great day!
If After five years of customer usage, 12 products out of 50 failed. The reliability of the product is :76%.
<h3 /><h3>
Reliability of the product</h3>
First step is to calculate the probability of not failed
Not failed=50-12
Not failed=38
Second step is to calculate the reliability of the product using this formula
Reliability= Good ones/Total
Let plug in the formula
Reliability=38/50
Reliability= 0.76×100
Reliability=76%
Therefore If After five years of customer usage, 12 products out of 50 failed. The reliability of the product is :76%.
<h3 />
Learn more about reliability of the product here:brainly.com/question/14841972
#SPJ4