d = 3 , a₁₂ = 40 and S
= 7775
In an arithmetic sequence the nth term and sum to n terms are
<h3>• a
= a₁ + (n-1)d</h3><h3>• S
=
[2a + (n-1)d]</h3><h3>
where d is the common difference</h3><h3>a₆ = a₁ + 5d = 22 ⇒ 7 + 5d = 22 ⇒ 5d = 15 ⇔ d = 3</h3><h3>a₁₂ = 7 + 11d = 7 +( 11× 3) = 7 + 33 = 40</h3><h3>S₁₀₀ =
[(2×7) +(99×3)</h3><h3> = 25(14 + 297) = 25(311)= 7775</h3>
Answer:
Most goods and services
Step-by-step explanation:
A credit card can be used to purchase most goods and services, whether they are legal or not.
Answer:
I think that 110 would be the correct answer. PLEASE correct if I'm wrong.
Step-by-step explanation:
See, a 90 degree angle is a right angle or like one of the ways you can split a square in half. l
So since that is a little more than a 90 degree angle, I would guess it would be 110.
Answer:
actually its A... i know cause i got it WRONG
Step-by-step explanation:
Answer:
The difference of ten and five: 10 - 5
The quotient of ten and five: 10 ÷ 5
The product of ten and five: 10 ⋅ 5
The sum of ten and five: 10 + 5
Step-by-step explanation:
difference is subtraction
quotient is division
product is multiplication
sum is addition
