All Questions

1206

I need help with making the equations

3.
Write the exponential growth function to model the following situation:
A population of 422, 000 increases by 12% each year.
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Guest Mar 25, 2019

1147

PLEASE HELP!!!! i need to study for a test

1. The normal monthly rainfalll at the Seattle-Tacoma Airport can be approximated by the model R = 3.121 +2.399sin(0.524t+1.377), where R is measured in inches and t is the time in months. Use the model to approximate the normal yearly rainfall. read more ..

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Guest Mar 25, 2019

-1

880

+279

please help with (last) trig problem

Triangle ABC has a right angle at C. sinA sinB and sinC forms a geometric sequence. Please determine the value of sinA.

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yasbib555 Mar 25, 2019

-1

795

+279

In triangle ABC, the 3 sides (a,b,c) form a geometric sequence. What is the range of sinB+cosB? (hint: try using the mean inequality?)

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yasbib555 Mar 25, 2019

-1

830

+279

Please help with this trig problem!!

Given triangle ABC,
sinC=(sinA+sinB)/(cosA+cosB),
or in LaTeX,
What is the shape of triangle ABC? read more ..

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yasbib555 Mar 25, 2019

913

+283

help ):

If f(a,b)=2a-3b^(2)+7 and f(b,3)=90 what is b?

I'm confused about whether the order in a function is relevant or whether the symbols are. Basically I don't understand if a=b or if a=a in this specific equation.. (sorry if that's read more ..

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ANotSmartPerson Mar 25, 2019

Mar 24, 2019

1076

+845

minimum and maximum height

for this question since i think minimum and maximum height of a curve is calculated by differentiate the curve and make it equal to 0
i did:
which didnt work read more ..

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YEEEEEET Mar 24, 2019

1003

help pls (repost because the original never got answered)

The graph of $y = f(x)$ is shown below. Assume the domain of $f$ is $[-4,4]$ and that the vertical spacing of grid lines is the same as the horizontal spacing of grid lines.

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asdf335 ●

Guest Mar 24, 2019

2229

im kinda confused..help?

1.
Kevin borrowed $2000 from his mother at an interest rate of 5%, compounded monthly. How much does he owe (including the original $2000) at the end of 3 years? Give your answer rounded to the nearest cent.

2. read more ..

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Guest Mar 24, 2019

-4

964

+1008

Help 13

What is the area of Figure ABCD? read more ..

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Nickolas Mar 24, 2019

1672

Need help!

The numbers x^3 and y^3 are inversely proportional. If x = 2 when y = 15, what is y if x = 1 and y is positive? Write your answer in simplest radical form.

Thank you.

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Guest Mar 24, 2019

930

Evaluating trig functions help

What does the ' mean by the numbers and can these be solved by a calculator?

It tells me to use a calculator to evaluate the value of the following trig functions but I don't know how to put the ' in a calculator.
7. read more ..

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Guest Mar 24, 2019

900

Measure of angle

The measure of angle q is 82 degrees
Find the measure of its supplement .
Find the measure of its complement. ( show work) pleaseeee and thanks

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Guest Mar 24, 2019

1506

I need help finding the initial amount and growth rate

10. Identify the initial amount and the growth rate of the following:
Y = 250 (1+0.2)t

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asdf335 ●

Guest Mar 24, 2019

1924

+150

Help me please

Point A lies somewhere within or on the square which has opposite corners at (0,0) and (2,2). Point B lies somewhere within or on the square which has opposite corners at points (4,2) and (5,3). What is the greatest possible value of read more ..

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Imnotamaster Mar 24, 2019

1326

+25

Help ASAP

Eight trials are simulated. The results are shown in the table. Simulation 109 105 112 110 115 106 108 109 What is the estimated margin of error, using standard deviation? Enter your answer, rounded to two decimal places, in the box. Help ASAP read more ..

LMessiA Mar 24, 2019

1900

Sequence

What is the sum of this sequence?
1000^2 + 999^2 - 998^2 - 997^2 +996^2 + 995^2 - .....+ 4^2 + 3^2 - 2^2 - 1^2. Any help would be great. Thank you.

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Guest Mar 24, 2019

803

+55

Solved

The reaction is C7H16(L) + 11O2 = 7CO2 + 8H2O

Heat of combustion for one mole C7H16 is -4.85*10^3 KJ
read more ..

Cent0rea88 Mar 24, 2019

666

Help I don't know how to do this problem

Rewrite the expression in the form . What is ?

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Guest Mar 24, 2019

845

Please Help!!! Polynomials

part a
Let f(x) = x^4 - 3x^2 + 2 and g(x) = 2x^4 - 6x^2 +2x - 1. Let a be a constant. What is the largest possible degree of f(x) + a * g(x)?
part b
Let f(x) = x^4 - 3x^2 + 2 and g(x) = 2x^4 - 6x^2 +2x - read more ..

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Guest Mar 24, 2019

720

Help! Immediately!

Suppose $f$ is a polynomial such that $f(0) = 47$, $f(1) = 32$, $f(2) = -13$, and $f(3)=16$. What is the sum of the coefficients of $f$?

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Guest Mar 24, 2019

847

+142

Hi there

In right triangle PQR, we have angleQ=angleR and PR=6\sqrt(2). What is the area of triangle PQR?

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KeyLimePi Mar 24, 2019

878

Find the positive real value of t that satisfies .

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Guest Mar 24, 2019

All Questions ⁺⁰237795 Questions

I need help with making the equations

PLEASE HELP!!!! i need to study for a test

please help with (last) trig problem

In triangle ABC, the 3 sides (a,b,c) form a geometric sequence. What is the range of sinB+cosB? (hint: try using the mean inequality?)

Please help with this trig problem!!

help ):

minimum and maximum height

help pls (repost because the original never got answered)

im kinda confused..help?

Help 13

Need help!

Evaluating trig functions help

Measure of angle

I need help finding the initial amount and growth rate

Help me please

Help ASAP

Sequence

Solved

Help I don't know how to do this problem

Please Help!!! Polynomials

Help! Immediately!

Hi there

Find the positive real value of t that satisfies .

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