Is 81x squared minus 1 a perfect square

Find the center and radius of the circle with equation (x + 6) 2 + (y - 4) ^2 = 36.

Select the pair of slopes that are the slopes of perpendicular lines. 3 and 1/3 7/8 and - 7/8 1/4 and 1/4 -2/3 and 3/2

What are two numbers with a sum of 496 and a difference of 238?

Find the radius of a circle with circumference of 125.66 feet

Which of the following are prime factorizations of the number 34? Check all that apply. A. 17, 2 B. 2, 17 C. 1, 34 D. 34, 2

what does it mean when a number is outside of the parentheses in a quadratic function for example: 2 (x+1) ^2

Sarah makes a party punch that requires 1 gallon of orange juice for every 1 and one half gallons of lemonade. Dean's favorite punch recipe calls for 4 gallons of orange juice for every 1 gallon of pineapple juice.

If the probability that it rains tomorrow is 35%, what is the probability that it does NOT rain? A) 15% B) 35% C) 65% D) 75%

Find z↓0.755. (like a downward exponent) A -0.2266 B 0.2266 C -0.69 D 0.69

Francis has 6 chocolate bars. he gives one to John and one to Chester. he keeps the rest for him. what fraction of the chocolate bars did he give away?