Petra is given the equation (x + 15) ^2 + (y+4) ^2 = 100 and identifies it's graph as a circle whose center is (-15,4) and radius is 10. Has Petra made a mistake? Explain.

What is the partial quotients divide use partial quotients 22:418

A hungry lion is looking for food. It went 5 miles (mi) before it spotted a zebra to stalk. It took this lion 0.2 hours to get to the zebra. What is the lion's speed?

What is the 6th term of the geometric sequence 2/25, 2/5, 2, 10?

Simplify the expression - 30 + d - 12 + 6d

Algebra 1: Video Games Jesse borrowed some money from his parents to buy an Xbox 360 with Kinect. After the first week he owes his parents $380, the second week he owes his parents $360, and the third week he owes his parents $340.

At a ice cream shop the ratio of sugar cones sold to waffle cones sold is 10:7. if there are 40 sugar cones sold. how many waffles cones would be sold

Tiya has 7/9 of an apple pie. How many pieces, each 1/3 of a pie, can she get from that pie?

At Teresa's auto shop, it takes her 15 minutes to do an oil change and 18 minutes to do a tire change. Let x be the number of oil changes she does. Let y be the number of tire changes she does.

Which expression gives the volume of a sphere with radius 5

A mine produces 42.5 tons of coal per hour. how much coal will the mine produce in 9.5 hours?