2.85 - 6.2 divided by 2 (2 exponent)

Nadia's bookshelf contains 10 fiction books, two reference books, and five nonfiction books. What is the probability that she randomly picks up a reference book and then, without replacing it, picks up a nonfiction book?

Solve x: |x| - 8 = - 5

Moriah buys eight 12-pound bags of cement, seventy 3-pound paving stones, and a 50-pound wheelbarrow to redo the patio in her backyard. She wrote an expression to determine the total weight of the items she needs to buy. 8 * 12 + 3 * 70 + 50

A, b, c, d are the roots of 3x⁴-6x²+2=0. what is the value of a⁴+b⁴+c⁴+d⁴?

Solve for y. 2y = 12x + 42

Euler's formula, V - E + F = 2 relates the number of vertices V, the number of edges E, and the number of faces F of a polyhedron. How many faces does a polyhedron with 5 vertices and 8 edges have?

12. x2 - 25 = 0 solve for square roots

How many solutions does the equation have? |p - 4| = - 5

F (x) = 2/3x+3, what is the value of f (12)

A problem on a multiple-choice quiz is answered correctly with probability 0.9 if a student is prepared. an unprepared student guesses between 4 possible answers, so the probability of choosing the right answer is 1/4.