BRAIN-COMPATIBLE Activity 3
Directions: Formulate the n term rule and use it in solving the problems below. Write
your answer in your notebook.
27,
1. Complete the pattern: 7, 12, 17,
Rule:
2.
14,
What are the missing numbers in the sequence 5, 8,
Rule:
3.
What is the sum of the first 5 even number?
What will be the next three terms?
Rule:
Given the sequence 5. 11. 17, at what n term will the number become 592
Rule:
5.
Write the first 5 term of the sequence in which the first term is 3 and each term is 5
more than the preceding term.
Rule:​

so what is the question

step-by-step explanation:

dont think so

step-by-step explanation:

english, cause i can’t you

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240