1) F + (N - 1)*D=Nth Term, where F=First term, D=Common difference and N=Number of terms.
-1 + (8 - 1)*D =20, solve for D
-1 + 7D = 20
7D = 20 + 1
7D =21 divide both sides by 7
D = 21 / 7
D = 3 Common difference
2)
(F + L) / 2*N, where F=First term, L=Last term and N=Number of terms.
Sum = (-7 - 115) / 2*13
Sum =( -122 / 2) * 13
Sum = -61 * 13
Sum = -793
Answer:153.94in²
Step-by-step explanation:
Answer:
please make me brainliset
Answer:
Step-by-step explanation:
<em>Hey there!</em>
<u>Given</u>
To single out x we multiply everything by 5, since 5 is being divided by x.
5 * 3 = 15
1 * 4 = 4
<em><u>Ans =</u></em>
<em>Hope this helps :)</em>
<span><span>Rate of interest is the percent charged or earned. Time that ... 1) How much interest will he pay if he pays the entire loan off at the end of the third year? 2) What is the total amount that she will repay? ... To buy a laptop computer, Elaine borrowed $2,000 for 3 years at an annual simple interest rate of 5%. ... Use 0.05 for 5%.</span><span>
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