Find the range of values of k such that the equation kx^2 - x - 1 = 0 has no real roots

3x5⋅6x3 A 18x^8 B 9x^2 C 9x^8 D 18x^15

A Tree Grows 1 3/4 feet per year how long will it take the tree to grow from height of 21 1/4 feet to a height of 37 ft

You have to complete assembling a piece of machinery with various parts. Each part adds to the length of the item. There are 2 parts with a length of ¾ inches, and 3 parts with a length of 1 ⅝ inches.

Jeremy walked 6/8 of the way to school and ran the rest of the way. What fraction in simplest form shows the part of the way that Jeremy walked?

A spinner is divided into an unknown number of equal-sized sections. Your friend spins it 100 times and tells you that it landed on section one 25 times. What is the best estimate of the number of sections the spinner is divided into?

A tree with a height of 12 yards casts a shadow that is 33 yards long at a certain time of day. At the same time, another tree nearby casts a shadow that is 20 yards long. How tall is the second tree?

A paleontologist uncovers a fossil of a saber-toothed cat in California. He analyzes the fossil and concludes that the specimen contain 15% of its original carbon-14. Carbon-14 has a half-life of 5730 years.

Find the area of a circle with radius 6 cm. Use the value 3.14 for pi, and do not round your answer. Be sure to include the correct unit in your answer.

Lola rode her bike for 7/10 of an hour on Saturday and 3/5 of an hour on Sunday. How much longer did she ride her bike on Saturday than Sunday?

Write a compound inequality that represents the situation. On a road in the city of Rochester, the maximum speed is 50 miles per hour, and the minimum speed is 20 miles per hour. A. 20 ≥ x ≥ 50 B. 20 < x < 50 C. 20 > x > 50 D. 20 ≤ x ≤ 50