What value of b makes the expression. x²+bx+100 a perfect square trinomial?
a. 10
b. 20
c. 50
d. 5

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?