28 Answered Questions for the topic Precal

#### 7.1 8 Find the area of the triangle if a=9inches, b=7inches, and α=34°. Round to the nearest tenth.

Find the area of the triangle if a=9inches, b=7inches, and α=34°. Round to the nearest tenth.

#### (Can someone show me step by step?)The population of a small town is increasing at a continuous growth rate of 3.29 % per year. In 2018 the population was 15,000.

Part A: If t is the number of years since 2018 and f(t) is the population, write a continuous exponential growth function expressing the relationship between f(t) and t.PART B: Predict the year...
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01/13/20

#### [4 Questions] Pre-cal Asymptotes (NEED HELP)

https://imgur.com/a/5h6rxZvHow do I do these? Asymptotes confuse me, if anyone could help me I would greatly appreciate it.(I need to find the domain, vertical, and horizontal Asymptotes)

03/29/19

#### Solve the equation. Cos^2θ-sin^2θ=1+sinθ on the interval 0<θ<2π

Please help! This is for my precal class test review and I’ve been trying to solve it for an hour now and can’t seem to figure out how to do it. Here is the problem once again: cos2θ-sin2θ=1+sinθ...
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09/10/18

#### find an equation of the line passing through point (2, 1) and perpendicular to y=2x-3/2

I suck in math so please help math geniuses.

Precal

06/22/18

#### Need help with a growth problem

Immediately following an injection, the concentration of a drug in the bloodstream is 200 milligrams per milliliter. After t hours, the concentration is 75% of the level of the previous...
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Precal Precalculus

03/28/18

#### PreCalculus Questions

Given u = -10i + 6j and v = -8i + -j, find the angle between u and v.

01/31/18

#### Degree 3; zeros; -8 , 5- i

Information is given about a polynomial f(x) whoae coeffiecients are real numbers

Precal

01/17/18

#### If a treadmill is 6 ft long and is set at 8% grade. How high (in feet ) is the front end of the treadmill

I need the steps please.

Precal

11/30/17

#### Heather is trying to decide what classes to take next year.

Heather is trying to decide what classes to take next year. She must take one of each and can choose from 3 math classes, 2 science classes, 4 history classes, and 3 English classes. How many...
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Precal

11/13/17

#### A car travels 10 miles. Its tires make 8800 revolutions. What is the radius of a tire in inches?

precal, answer must be in inches

Precal

08/27/17

#### Suppose that $867.9 is invested at 6.0% compounded continuously. How much is in the account after 13.4 years? Round your answer to the nearest cent.

Suppose that $867.9 is invested at 6.0% compounded continuously. How much is in the account after 13.4 years? Round your answer to the nearest cent.

Precal Precalculus

06/18/17

#### Show that f and g are inverses of each other by verifying that f(g(x))=x=g(f(x)). f(x)=3x+2/x-1; g(x)= x+2/x-3

basic concepts

04/29/17

#### How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated?

Help....... this is so hard

02/14/17

#### PRECALCULUS HELP: inverse of a equation

The functionf(x) = −12 x^2 + 6x + 5is not invertible, however the domain can be restricted so that the function is invertible only on the restricted domain. There are many ways to do this. One way...
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Precal

09/19/16

#### How much more would the account have been worth if the interest were compounding weekly?

An account is opened with an initial deposit of $6,500 and earns 3.3% interest compounded semi-annually for 30 years. How much more would the account have been worth if the interest were...
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02/09/16

#### Find sin(x) and cos(x), if cot(x)=8 and csc(x)<0

I have a few more questions about stuff like this, but all my questions are going on here separately. I think I'm STARTING to understand this stuff a little better. I just can't figure out how to...
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Precal

01/20/16

#### Find the work done by a force F of 45 pounds acting at an angle of 127 degrees in moving an object from (1,2) to (-3,7)

Need help on this question

Precal

12/06/15

#### square root of 3 sin(theta) +cos (theta) = 1

The answer is between 0 < or equal to theta< 2pi

Precal

12/06/15

#### Find sin(a+b) if tan(a)= 7/24 where a is in the 3rd quadrant and cos(b)= -12/13 where b is in the 2nd quadrant

I could really use some assistance on this problem! I'm a little confused on how to work it.

Precal

09/04/15

#### If y varies inversely as the square of x, and y=1/8 when x=1, find y when x=5.

I'm not sure the answer to this question.

Precal

08/31/15

#### how many gallons of a 90% antifreeze solution must be mixed with 100 gallons of 25% antifreeze to get a mixture of 80% antifreeze?

please help just need an answer

#### find the slope and y-intercept for 4x-2y=8

Having trouble finding the slope perpendicular to the problem above as well, Please help and thank you so much

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