Questions in mathematics

Questions in mathematics

[Done] what is the square root of 144 simplified

[Done] Find the domain and range of the function \[ y = \sqrt{-x^2 - 6x + 2} \]

[Done] A plant cell is 0.00001267 meters wide. How is this number written in scientific notation?

[Done] Jacob is twice as old as Sue. The sum of their ages is 69 years. How old is Jacob?

[Done] The surface area of a right triangular prism is 228 square inches. The base is a right triangle with a height of 6 inches and a base length of 8 inches. The length of the third side of the base is 10 inches. Find the height of the prism.

[Done] How many digits will be in the quotient of 588 divided by 6? Use place value to explain.

[Done] The equation \(x^2 + y^2 - 2x + 2y - 1 = 0\) is the general form of the equation of a circle. What is the standard form of the equation?

[Done] a) A pint is what fraction of a quart? b) What fraction of a gallon is a quart? c) What fraction of a gallon is a pint? d) The answers to parts a-c show that one half of one fourth equals what fraction?

[Done] Simplify the expression: \[ 5a + 2a(5 - b) \] Please, I need help.

[Done] Anita and Terry ride the subway on Sundays to visit their grandparents. There are two entrances to the subway from the street: north and south. Inside each entrance is an escalator, elevator, and stairway leading to the first level. On the first level, there are eight gates. At each end of the first level (north and south), there is an escalator, elevator, and stairway leading directly to the trains. How many different ways can Anita and Terry go from street level to the trains?