Answer:
84
Step-by-step explanation:
This is because of the formula for perimeter of a triangle is P= Side A+ Side B + Side C. If I just input these and do the math I get an answer
Answer: Ola
Step-by-step explanation:
Answer:
an = -45 +15(n -1)
Step-by-step explanation:
The explicit formula for an arithmetic sequence is ...
an = a1 +d(n -1)
where an is the n-th term; a1 is the first term (-45), and d is the common difference (15). Filling in the values for the given sequence, we find the formula to be ...
an = -45 +15(n -1)
Answer:
3
Step-by-step explanation:
Answer:
x = 5
or
x = 3
Step-by-step explanation:
The first term is, x2 its coefficient is 1 .
The middle term is, -8x its coefficient is -8 .
The last term, "the constant", is +15
Step-1 : Multiply the coefficient of the first term by the constant 1 • 15 = 15
Step-2 : Find two factors of 15 whose sum equals the coefficient of the middle term, which is -8 .
-15 + -1 = -16
-5 + -3 = -8