7,221 Answered Questions for the topic Math Help

Math Help

11/29/17

MATH HELP PLEASE ANSWER
A mechanic uses his credit card with a 1.5% monthly interest rate to pay for a compressor that costs $477.95. When he gets his bill, he makes a $100 payment. What is the amount of interest he will... more
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Math Help

11/29/17

Word problem
A student missed 34 problems on a test and received a grade of 6% if all the problems were of equal value how many problems were on the test?
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Math Help Math

11/29/17

ASK A QUESTION Write an equation of the line that passes through the given point and is parallel to the graph of the given equation (-2,1);y=3x-4
Math help I don’t understand how to do it please help.
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Math Help

11/29/17

what is the answer for 1.67 x 10(-24)
   THIS IS FOR MY MATH HOME WORK AND DON'T know if I move the point right or left 24 spaces.  
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Math Help

11/29/17

Write the ratio as a fraction in simplest form. 2 1 3 213 feet : 4 1 2 412 feet The ratio as a fraction in simplest form is
 I need help on this.Write the ratio as a fraction in simplest form.213213feet : 412412feetThe ratio as a fraction in simplest form is 
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Math Help Math

11/29/17

what is the average rate of change over the interval [8, 17]
i don’t understand the rate of change in aldraba 1
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Math Help

11/29/17

Which of these is a simplified form of the equation 7x + 4 = 5 + 3x + 1x? 3x = 9 3x = 1 11x = 9 11x = 1
I need help using the simplifying steps when it comes down to simplifying. I would like a tutor to help me out with this question.
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11/29/17

The population is by p(t)=p0b^t. Find B PLEASE HELP
You are growing bacteria. From your initial experiments, you know that these particular bacteria would double the size of their population every three hours in the presence of unlimited resources.... more
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Math Help

11/29/17

describe a triangle whose perimeter is more than 50m but area is less than 1m^2
Not sure if there is a formula, really need help!!! 
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11/29/17

Solving Trig Equations Intro
Solve cos(x)=-0.57 on 0≤ x< 2Π The two solutions rounded to 4 decimal places are 
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11/29/17

Solving Trig Equations Intro
Solve sin(x)=-0.82 on 0≤ x< 2Π   There are two solutions, A and B, with A < B and A and B in radians to 4 decimal places.   A= B=
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Math Help

11/28/17

A bicycle has a listed price of $537.95 before tax. If the sales tax rate is 9.5% , find the total cost of the bicycle with sales tax included. Round your an
i need to know please thanks for support!
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11/28/17

a student answers 90% of he questions on a math exam correctly. if he answers 18 questions correctly, how many questions are on the exam?
how do i solve his and how do i get my answer correct? whats an easy way to memorise how to do these problems?
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11/28/17

Inverse variation
If y varies inversely as x, and y is 385 when x is 832, find y when x is 226
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11/28/17

Direct variation
If y varies directly proportional to the 5/2 power of x, by what factor will y change when x is tripled?
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11/28/17

Without evaluating, which power has the least value: 7^-155, 49^-78, 343^-53
^-155 means to the exponent -155
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11/28/17

Math homework help
Write an equation of an alternating voltage that has a peak value of 155 V, a frequency of 60Hz and a phase angle of 22°
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Math Help

11/28/17

A twin-engine plane flies 1000 mi in the same amount of time it takes a single-engine plane to fly 750 mi.
A twin-engine plane flies 1000 mi in the same amount of time it takes a single-engine plane to fly 750 mi. The rate of the twin-engine plane is 50 mph faster than the rate of the single-engine... more
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Math Help Math Radians Frequency

11/28/17

Sine wave help
Find the period and frequency of a sine wave that has an angular velocity of 500 rad/s
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11/28/17

Trig equations
A boat sails on a bearing of 75° for 128miles and then turns and sails 203miles on a bearing of 191°. Find the distance of the boat from its starting point.   I am unsure how to solve this equation
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Math Help Math Velocity Frequency

11/27/17

Sine wave as a function of time
Find the frequency and the angular velocity of a repeating waveform whose period is 1/4s 
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Math Help Math Trigonometry Trig

11/27/17

sin(A-B) over sinA-SinB equals cotB-cotA
establish an identity
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Math Help Math

11/27/17

Math question
As a ladder is raised the height increases as the angle increases. Write the function and graph for O=0 to 90°
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Math Help

11/27/17

MATHEMATICS
solve for x in each of the following    a) 7^x=343   b) 2^-3=1/512   c) 2x-5/3=5/6   d) x+ 2 1/2=5 2/3   e) 20+x/x =4/5   f) 2x+4 = 3x - 1/3  
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Math Help Math Algebra

11/27/17

Simplify the exponential expression.
Simplify the exponential expression. 28x^2y^4 divided by 48x^5y^-6
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