Algebra Answers

4.25x -12.5 ≤ 20.5

If peter pays $84 to buy a watch after a discount of 20% find the original price of the watch

On a radar screen, a plane located at A(-2,4) is flying toward B(4,3) Another plane, located at C(-3,1), is flying toward D(3,0). Are the planes' paths perpendicular? Explain.

the Laboratory technician needs to make it a 56 L batch of a 40% acid solution. how can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 20% to get the desired concentration?

Find the domain and range of f(x)=3/×^2+2

Last weekend I drove 330 miles from Los Angeles to Santa Cruz. My car averaged 20.8 miles per
gallon of gasoline during this trip and when I filled up the cost of gasoline was $2.59 (9/10)
a) Use mental math to approximate the total cost of the trip and explain how you arrived at your answer.
b) Write the exact amount of gasoline my car consumed as a fraction.
c) What was the actual cost of the trip? Round your answer to the nearest cent.

In a meeting a government officer wanted to distribute certain number of apples equally
among the physically handicapped children. If the number of children was 2 less, each of
them would have got one apple more. Again when the ten officers present in the day are
also included, then each of them will get 3 apples less. Find the number of the
handicapped children and the number of apples

2+2

Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.

Degree 3; zeros: -9, -5-i

Use the given zero to find the remaining zeros of the function.

f(x)=x^3-2x^2+36x-72, zero: 6i