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college mathematics for business

Questions and Answers of College Mathematics For Business

In Problem multiply, and express answers using positive exponents only.3x3/4 (4x1/4 - 2x8)
In Problem imagine that the indicated “solutions” were given to you by a student whom you were tutoring in this class.(A) Is the solution correct? If the solution is incorrect, explain what is
In Problem factor completely. If a polynomial cannot be factored, say so.2x3 - 2x2 + 8x
In Problem without using a calculator, round to the nearest integer. (A) (B) – 12 25 17
In Problem write each expression in the form axp + bxq or axp + bxq + cxr, where a, b, and c are real numbers and p, q, and r are integers. For example, 2x - 3x2 + 1 2x4 3x 1 3 = X
In Problem perform the indicated operations and simplify.(x - y)3
In Problem multiply, and express answers using positive exponents only.2m1/3 (3m2/3 - m6)
In Problem without using a calculator, round to the nearest integer. (A) + 표 (B) 흥- 7 55
Represent the compound fractions in Problem as simple fractions reduced to lowest terms. 1 1 3(х + h)2 3x2 h
In Problem factor completely. If a polynomial cannot be factored, say so.3m3 - 6m2 + 15m
In Problem perform the indicated operations and simplify.(x - 2y)3
In Problem find all real solutions.x3 + 8 = 0
Write each expression in Problem with positive exponents only, and as a single fraction reduced to lowest terms. Зx? (х — 1)? - 2(x - 1) x), (х — 1)4
In Problem multiply, and express answers using positive exponents only.(3u1/2 - v1/2) (u1/2 - 4v1/2)
In Problem factor completely. If a polynomial cannot be factored, say so.8x3 - 27y3
In Problem without using a calculator, round to the nearest integer. 18 (A) - 5 (B) +
In Problem perform the indicated operations and simplify.(2m - n)3
In Problem find all real solutions.x3 - 8 = 0
In Problem multiply, and express answers using positive exponents only.(a1/2 + 2b1/2) (a1/2 - 3b1/2)
Represent the compound fractions in Problem as simple fractions reduced to lowest terms. 1 1
In Problem factor completely. If a polynomial cannot be factored, say so.5x3 + 40y3
In Problem find all real solutions.5x4 - 500 = 0
Subtract the sum of the last two polynomials from the sum of the first two: 2x2 - 4xy + y2, 3xy - y2, x2 - 2xy - y2, -x2 + 3xy - 2y2
In Problem simplify each expression and write answers using positive exponents only. All variables represent positive real numbers. 4x -1/2 y
In Problem perform the indicated operations and reduce answers to lowest terms. Represent any compound fractions as simple fractions reduced to lowest terms. 1 1 2(x + h) 2x h
In Problem multiply, and express answers using positive exponents only.(6m1/2 + n- 1/2) (6m - n- 1/2)
In Problem simplify and express answers using positive exponents only. Assume that variables are nonzero. 103. 104 10-11. 10-2
Write each expression in Problem with positive exponents only, and as a single fraction reduced to lowest terms.2x-2(x - 1) - 2x-3(x - 1)2
In Problem factor completely. If a polynomial cannot be factored, say so.x4y + 8xy
In Problem simplify each expression and write answers using positive exponents only. All variables represent positive real numbers. wt \-1/2 9x
In Problem simplify and express answers using positive exponents only. Assume that variables are nonzero. 10 10-3. 10-14 -17.10 -5 5
In Problem factor completely. If a polynomial cannot be factored, say so.4z2 - 28z + 48
In Problem perform the indicated operations and simplify.m - {m - [m - (m - 1) ] }
In Problem simplify each expression and write answers using positive exponents only. All variables represent positive real numbers. (&r)-1/3 12r/4
In Problem perform the indicated operations and reduce answers to lowest terms. Represent any compound fractions as simple fractions reduced to lowest terms. 2 + y y
In Problem factor completely. If a polynomial cannot be factored, say so.6x2 + 48x + 72
Given the sets of numbers N (natural numbers), Z (integers), Q (rational numbers), and R (real numbers), indicate to which set(s) each of the following numbers belongs: (А) 8 (B) V2 (С) - 1.414 (D)
In Problem perform the indicated operations and simplify.2x - 3{x + 2[x - (x + 5) ] + 1}
In Problem perform the indicated operations and simplify.(x2 - 2xy + y2) (x2 + 2xy + y2)
In Problem simplify each expression and write answers using positive exponents only. All variables represent positive real numbers. 6a/4 15a /3 а
In Problem simplify and express answers using positive exponents only. Assume that variables are nonzero.(5x2y-3)-2
In Problem factor completely. If a polynomial cannot be factored, say so.2x4 - 24x3 + 40x2
In Problem perform the indicated operations and simplify.(3x - 2y)2 (2x + 5y)
Simplify each expression in Problem using properties of radicals. All variables represent positive real numbers. V(2r + 3) 3)5
In Problem simplify and express answers using positive exponents only. Assume that variables are nonzero.(2m-3n2)-3
In Problem imagine that the indicated “solutions” were given to you by a student whom you were tutoring in this class.(A) Is the solution correct? If the solution is incorrect, explain what is
In Problem factor completely. If a polynomial cannot be factored, say so.2y3 - 22y2 + 48y
In Problem perform the indicated operations and simplify.(5a - 2b)2 - (2b + 5a)2
In Problem simplify and express answers using positive exponents only. Assume that variables are nonzero. -5) -2 2r3
Indicate true (T) or false (F), and for each false statement find real number replacements for a, b, and c that will provide a counterexample. For all real numbers a, b, and c,(A) a(b - c) = ab -
In Problem factor completely. If a polynomial cannot be factored, say so.4xy2 - 12xy + 9x
Simplify each expression in Problem using properties of radicals. All variables represent positive real numbers. (7 + 2y)3
In Problem imagine that the indicated “solutions” were given to you by a student whom you were tutoring in this class.(A) Is the solution correct? If the solution is incorrect, explain what is
In Problem simplify and express answers using positive exponents only. Assume that variables are nonzero. -3 2а 3b2
In Problem perform the indicated operations and simplify.(2x - 1)2 - (3x + 2) (3x - 2)
In Problem factor completely. If a polynomial cannot be factored, say so.16x2y - 8xy + y
In Problem find all real solutions.2x3 + 250 = 0
If you paid $29.86 in tax on a purchase of $533.19, what was the sales tax rate? (Write as a percentage, rounded to one decimal place).
In Problem factor completely. If a polynomial cannot be factored, say so.8a3 - 1
In Problem find all real solutions.x4 - 8x2 + 15 = 0
In Problem perform the indicated operations and simplify.[ (2x - 1)2 - x(3x + 1) ]2
In Problem convert each number to scientific notation and simplify. Express the answer in both scientific notation and in standard decimal form. 9,600,000,000 (1,600,000) (0.000 000 25
In Problem multiply, and express answers using positive exponents only.(3x1/2 - y1/2)2
If the price per gallon of gas jumped from $4.25 to $4.37, what was the percentage increase? (Round to one decimal place).
In Problem factor completely. If a polynomial cannot be factored, say so.(x + 2)2 - 9y2
In Problem find all real solutions.x4 - 12x2 + 32 = 0
In Problem convert each number to scientific notation and simplify. Express the answer in both scientific notation and in standard decimal form. (1,250,000) (0.000 38) 0.0152
In Problem factor completely. If a polynomial cannot be factored, say so.3x2 - 2xy - 4y2
If P dollars are invested at 100r percent compounded annually, at the end of 2 years it will grow to A = P(1 + r)2. At what interest rate will $484 grow to $625 in 2 years?
If you are given two polynomials, one of degree m and the other of degree n, where m is greater than n, what is the degree of their product?
Write each expression in Problem in the form axp + bxq, where a and b are real numbers and p and q are rational numbers. 2V - Vĩ 4Vx
What is the result of entering 232 on a calculator?
In Problem factor completely. If a polynomial cannot be factored, say so.6(x - y)2 + 23(x - y) - 4
Write the fractions in Problem as simple fractions reduced to lowest terms. и + 0 ul + v
Rationalize the denominators in Problem. 12mn V3mn
Rationalize the denominators in Problem. 14r2 V7x
Write the fractions in Problem as simple fractions reduced to lowest terms. b-2 - c-2 C b-3 – c 3
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counterexample.If n is a positive integer greater than 1, then un - vn can be factored.
A person has $100,000 to invest. If $x are invested in a money market account yielding 7% and twice that amount in certificates of deposit yielding 9%, and if the rest is invested in high-grade bonds
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counter example. = x for all real numbers x
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counter example. Vx? = |x|for all real numbers x
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counter example. Vx³ = |x|for all real numbersx
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counter example. = x for all real numbers x %3D
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counter example.If r < 0, then r has no square roots.
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counter example.If r > 0, then r has two square roots.
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counter example. The square roots of 2V6 – 5 are V3 - V2 and V2 - V3
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counter example. V355 – 60V35 = 5V7 – 6V5
In Problem discuss the validity of each statement. If the statement is true, explain why. If not, give a counter example. V7 - 5V2 = 1 - V2
In Problem evaluate using a calculator. (Refer to the instruction book for your calculator to see how exponential forms are evaluated.)827-3/8
A company wholesales shampoo in a particular city. Their marketing research department established the following weekly supply-and-demand equations:How many units are required for supply to equal
Write each expression in Problem in the form axp + bxq, where a and b are real numbers and p and q are rational numbers. 2 -2
In Problem perform the indicated operations and simplify.[5x(3x + 1) - 5(2x - 1)2]2
The price of gas increased 4% in one week. If the price last week was $4.30 per gallon, what is the price now? (Round to the nearest cent).
Write each expression in Problem in the form axp + bxq, where a and b are real numbers and p and q are rational numbers. 12 V - 3 4 Vĩ
In Problem factor completely. If a polynomial cannot be factored, say so.(a - b)2 - 4(c - d)2
In Problem perform the indicated operations and simplify.2{ (x - 3) (x2 - 2x + 1) - x[3 - x(x - 2) ]}
Write each expression in Problem in the form axp + bxq, where a and b are real numbers and p and q are rational numbers. 2Vx + + VI 3x
In Problem factor completely. If a polynomial cannot be factored, say so.5u2 + 4uv - 2v2
In Problem perform the indicated operations and simplify.-3x{x[x - x(2 - x) ] - (x + 2) (x2 - 3)}
To measure the velocity v (in feet per second) of a stream, we position a hollow L-shaped tube with one end under the water pointing upstream and the other end pointing straight up a couple of feet

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