MATHEMATICS HIGH SCHOOL

Multiplying polynomials
find the product
(5n+6)(5n-5)

Answers

Answer 1

Answer: $(5n+6)(5n-5) =5n\cdot 5n -5n\cdot 5+6\cdot 5n-6\cdot 5=\n \n=25n^2-25n+30n-30 =25n^2+5n-30$

Answer 2

Answer:

The solution of expression after multiplying is,

⇒ 25n² + 5n - 30

We have to given that,

To multiplying polynomials is,

⇒ (5n + 6) (5n - 5)

Now, We can multiply as,

⇒ (5n + 6) (5n - 5)

⇒ 5n × 5n + 5n × - 5 + 6 × 5n + 6 × - 5

⇒ 25n² - 25n + 30n - 30

⇒ 25n² + 5n - 30

Therefore, The solution is,

⇒ 25n² + 5n - 30

Learn more about the multiplication visit:

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Some students attend school 180 out of 365 days a year. About what percentage of the year do they attend school?

Answers

the required percent is
180/365*100

49.315068493150684931506849315068%
(180/365)*100=49.315068493150684931506849315068
is ur answer

2. A polygon that has no interior angles greater than 180 degrees is a ________________ polygon. *

Answers

Answer: convex

Step-by-step explanation:

your answer = convex

hope this helps:)

Solve the inequality and enter your solution as an inequality comparing the variable to the solution.-22 > x - 29

Answers

if your solving for x you need to add 29 to the other side and you get x<7

Evaluate 2|3y-8|+y if y =2.5

Answers

2|3y-8|+y if y =2.5
2|3（2.5）-8|+2.5
2|7.5-8|+2.5
2(0.5)+2.5
1+2.5
=3.5

Subtitute value of y to the expression:

2 · |3 · 2.5 - 8| + 2.5 = 2 · |7.5- 8| + 2.5 = 2 · |-0.5| + 2.5

= 2 · 0.5 + 2.5 = 1 + 2.5 = 3.5

Alex received two job offers. He is not sure whether he should take a job at the movie theater that's close to his house and pays $8.50 per hour, or if he should take the job at a grocery store that pays $9.00 per hour, but is a thirty-minute drive away. Use the PACED decision process to decide what Alex should do. Show each step.

Answers

PACED decision making model
P - identify the problem
A - identify the alternatives
C - determine criteria
E - evaluate alternatives
D - make a decision

Problem: What job to take?
Alternatives:
1st job: movie theater ; 8.50/hr ; near his house or walking distance
2nd job: grocery store ; 9.00/hr ; 30 minutes travel
Criteria:
travel time and travel cost
Evaluate:
1st job: walking distance, no traffic worries nor fuel expenses
2nd job: 30 minutes travel time, consider traffic, fuel expenses
Decision:
It is more practical to accept the job in the movie house. Even though it is only 8.50 per hour, travel expenses is 0 and there is no difficulty in going to work.

Answer:

Movie Theater

Step-by-step explanation:

P - identify the problem

A - identify the alternatives

C - determine criteria

E - evaluate alternatives

D - make a decision

1st job; $8.50 an hour

2nd job; $9 an hour

1st job; walking distance, no fuel or car expenses

2nd job; 30 minutes away, need to pay for a bus or gas for a car

I say he should get the job at the movie theater, its closer so he doesnt need to spend money on gas or for a way to get to the other job. It's only $.50 more for the other job but he would cost more for a way to get there.

Factor the equation x^2-3x-18