4,322 Answered Questions for the topic College Algebra

College Algebra

05/09/21

Find all angles 𝜃 between 0° and 180° satisfying the given equation. Round your answer to one decimal place.

Find all angles 𝜃 between 0° and 180° satisfying the given equation. Round your answer to one decimal place. cos= 7/8
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College Algebra

05/09/21

Find all angles 𝜃 between 0° and 180° satisfying the given equation. Round your answer to one decimal place.

Find all angles 𝜃 between 0° and 180° satisfying the given equation. Round your answer to one decimal place. cos= 7/8
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05/08/21

Use use the rational zero theorem to solve 21x^6+32x^5-180x^4+130x^3+55x^2-66x+8
I used synthetic division and got it down to 21x^4-31x^3-3x^2+15x-2 and I'm not sure where to go from there. How would I plug that into the quadratic formula to get the remaining zeros.
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05/07/21

Find y such that the triangle has an area of 12 square units. (Enter your answers as a comma-separated list.)
(−4, 2), (−3, 5), (−1, y)y = _____
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05/07/21

Consider the system of linear equations
a1x + b1y = c1a2x + b2y = c2where a1, b1, c1, a2, b2, and c2 represent real numbers. What must be true about the lines represented by the equations when the following is true?A: The lines must... more
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College Algebra

05/07/21

Find the distance d (P1,P2) between the points P, and P2. P1 = (a,r) P2 = (0,0)
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College Algebra

05/06/21

Write this ratio as a fraction in simplest form without any units. 20 quarts to 7 gallons
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College Algebra

05/05/21

I found a, how do I find b?
In 2003, 71 deer were introduced into a wildlife refuge area from which the population had previously been hunted to elimination. By 2006, the population had grown to 123 deer. If this population... more
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College Algebra

05/05/21

The parabola 𝑩 = 2đ‘„ 2 − 12đ‘„ + 1 goes through the point (3,-17). Check this! Now find a parabola with the exact same shape but passing through the point (1,1). Write your answer in standard form.
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College Algebra Math

05/05/21

If the annual income from the investments is $ 10125 , how much was invested in each account?

Maricopa's Success scholarship fund receives a gift of $ 130000. The money is invested in stocks, bonds, and CDs. CDs pay 3.25 % interest, bonds pay 2.1 % interest, and stocks pay 11.2 % interest.... more
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College Algebra

05/04/21

If the annual income from the investments is $ 10125 , how much was invested in each account?

Maricopa's Success scholarship fund receives a gift of $ 130000. The money is invested in stocks, bonds, and CDs. CDs pay 3.25 % interest, bonds pay 2.1 % interest, and stocks pay 11.2 % interest.... more
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College Algebra

05/04/21

If 14g of a radioactive substance are present initially and 7 yr later only 7 g remain how much of the substance will be present after 9 yr?
Round final answer to three decimal places as needed
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College Algebra

05/04/21

If the population doubled in size over 19 months and the current population is 20,000, what will the population be 5 years from now?
The population of a southern city follows the exponential law
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College Algebra Math Probability

05/04/21

Assume that you are drawing two balls without replacement from an urn that contains 11 green​ balls 5 blue​ balls and 3 red balls what is the probability that you will draw a red ball and a blue ​ball
Round to three decimal places as needed
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College Algebra Math Probability

05/04/21

We are drawing two cards without replacement from a standard​ 52-card deck. Find the probability that we draw at least one face card .
Type as an integer or a simplified fraction
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College Algebra Math Geometry Sat Math

05/03/21

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!
1) Suppose you invest money in two accounts. One of the accounts pays 4% interest annually, and the other account pays 5% interest annually. You have $ 2000 more invested in the account paying 4%... more
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College Algebra Math Math Help Formulas

05/03/21

Suppose that $11,000 is invested in a savings account paying 5.5% interest per year:
Suppose that $11,000 is invested in a savings account paying 5.5% interest per year:(a). Write the formula for the amount A in the account after t years if interest is compounded monthly. A(t) =... more
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College Algebra

05/02/21

If the annual income from the investments is $ 6340 , how much was invested in each account?

Maricopa's Success scholarship fund receives a gift of $ 105000. The money is invested in stocks, bonds, and CDs. CDs pay 5 % interest, bonds pay 5.9 % interest, and stocks pay 8.2 % interest.... more
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College Algebra Math

05/02/21

College Math 1314
The supply function and demand function for the sale of a certain type of DVD player are given by S(p)=140e^0.004p and D(p)=490e ^ -0.002p, where S(p) is the number of DVD players that the company... more
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College Algebra Math

05/02/21

College Algebra math
After the release of the radioactive material into the atmosphere from a nuclear power plant in the country 1995, the hay in that country was contaminated by a radioactive isotope (half-life 6... more
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College Algebra Math

05/02/21

Math College Algebra
The population of a southern city follows the exponential law. If the population doubled in size over 26 months and the current population is 20,000, what will the population be 4 years from now?
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College Algebra Math

05/02/21

College Algebra 1314
The radioactive element carbon-14 has half-life of 5750 years. A scientist determined that the bones from a mastodon had lost 57.8% of their carbon-14. How old were the bones at the time they were... more
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College Algebra Polynomials Zeros

05/02/21

Find a fourth-degree polynomial with integer coefficients that has zeros 4i and −1, with −1 a zero of multiplicity 2.
Find a fourth-degree polynomial with integer coefficients that has zeros 4i and −1, with −1 a zero of multiplicity 2.
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05/02/21

Show that B is the inverse of A.
A = -1/2 -5/4 B = 8 51 2 -4 -2To show that B is the inverse of A, we need to show that AB = I = BA.AB = -4 + ___ -5/2 + ___ = ____ ____ 8 + ___ 5 + ___ ____ ____BA = -4 +... more
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College Algebra Precalculus

05/01/21

Logarithmic Functions
An unknown radioactive element decays into non-radioactive substances. In 400 days the radioactivity of a sample decreases by 64 percent.(a) Find the decay constant k. (Round your answer to 5... more
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