7,199 Answered Questions for the topic Math Help

02/04/20

Math Question .
Carmelita's grandmother offered to sponsor her money when she competed in her swim meeting. Her grandmother said that she will give her $1 if she swims 1 lap, $3 if she swims 2 laps, $5 if she... more
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01/28/20

write a limit that describes the line x = a being a vertical asymptote of y = f(x)
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01/28/20

Let f(x) = (e^x - 1)/x. Approximate lim x-->0 f(x)
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Math Help Math Calculus Calc

01/28/20

Average velocity calculus questions
An object moves on a line so that its position in meters at time t seconds is s(t) = sin(t).a) Find the average velocity over the time interval [1, 1+h]b) Estimate the instantaneous velocity when t... more
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01/21/20

What are maximum and minimum values of the function (definite integral)
What are maximum and minimum values of the function f(a,b)= ∫_a^b e^(-(x-3)^2 ) dx ?
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12/11/19

Have a final pleaseee help
In a normal distribution with mean 850 in standard deviation 120 find the probability that a data value picked at random is greater than 1169show work!
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12/11/19

Have a final on this please please help me

Find the area (probability) under the standard normal curve between z= -0.52 and z= 2.01Show work
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12/10/19

Trigonometry equation
Find tan(x-y) if sin(x) = 1/5, cos(y) = 2/5, tan(x) < 0 tan(y) > 0
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12/09/19

Word problem help
A pot of coffee with a temperature of 100 degrees Celsius is set down in a room with a temperature of 20 degrees Celsius. The coffee cools to 50 degrees celsius in one hour.a. Find T(t), the... more
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12/09/19

Precalculus word problem
An arch going into an alley is in the shape of a downward opening parabola. The base of the arch is 10 ft. wide, and the arch is 15 ft. high at its center. How wide is the arch 10 ft. up?
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12/09/19

Find an equation of the ellipse
Find an equation of the ellipse that has vertices (4, 2) & (-2, 2) and foci (3, 2) and (-1, 2)
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11/21/19

trigonometric equation help
sin^2(x) - 3sin(x) + 2 = 0 within [-4π, 4π]
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11/03/19

z varies directly as x and inversely as y. If z=159 when x=8 and y=6, find z if x=5 and y=8.
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Math Help Math Algebra 1 Physics

11/03/19

The resistance, R, of a wire varies directly as its length and inversely as the square of its diameter.

If the resistance of a wire 1200ft long with a diameter of 0.28 inches is 16279 ohms, what is the resistance of 2600ft of the same type of wire with a diameter of 0.18 inches? (Leave k in fraction... more
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10/30/19

Population Growth
The initial population of gibbons is 10. The average increase per month is 1.25. Assuming a linear model, calculate the number of gibbons in 10 years time.
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10/20/19

Write series as a summation in sigma notation.
3+2+5/3+3/2PLEASE HELP ME AND THANK YOU IF YOU DO!!!!
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10/19/19

Write both series as a summation in sigma notation.
a). 3+2+5/3+3/2b). 5+8+11+14+17+20PLEASE HELP ME AND THANK YOU IF YOU DO!!!!
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10/19/19

Find the equation of the hyperbola if:

a). the asymptotes are y=0.5x and y=−4−0.5x, and one of the vertices is (−4, 0).b). it has x-orientation, with vertices (2, 0) and (−2, 0), and it goes through the point (4, 5sqrt(3))PLEASE HELP... more
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10/19/19

Using the information given below write the equation of the hyperbola:
a). The hyperbola has vertices (–2, 9) and (–2, 3) and foci (–2, 13) and (–2, –1).b). The transverse axis of the hyperbola lies on the line y=–3 and has length 6; the conjugate axis lies on the... more
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10/11/19

What is the conditional probability that B does not occur given that A does not occur?
The probability of A is 0.25. The conditional probability that A occurs given that B occurs is 0.25. The conditional probability that B occurs given that A occurs is 0.4. (a) What is the... more
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10/09/19

Given some zeros of a polynomial function find all zeros of the function
P(x) = 2x^4 - x^3 - 27x^2 + 16x - 80, with zeros: 4, -4
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10/02/19

Find the integral?
Evaluate the integral 7/(w^2+3w+3) dw.Here's my work:I've completed the square and came up with this:∫ 7/[(w+3/2)^2+3/4] dw----------------------------------where u=w+3/2 and du=dw.So ∫ 7/(u^2+3/4)... more
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09/28/19

Simplify: 2(sin^6(a)+cos^6(a))-3(sin^4(a)+cos^4(a))-sin(2π-a)+1
PLEASE HELP ME WITH THIS TRIG!!!! THANK YOU IF YOU DO!!!!
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Math Help Math Algebra 1 Algebra

09/08/19

Suppose A and B give the populations of two states where A > B. Compare the expressions and tell which of the given pair is greater or if the expressions are equal.

b/a+b and 0.5a + 13c and b + 13c, where c is the population of the third statea - b/2 and a - b/2a + b and 2b5(a + b) and (a + b)5
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Math Help

09/03/19

(e^(2x+2)/e^2=4 How to solve

Need help solving this problem. I need to solve for x (e^(2x+2)/e^2=4
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