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On a particular day in Salt Lake, UT, the temperature was given by $-t^2 +12t+50$ where $t$ is the time in hours past noon. What is the largest $t$ value at which the temperature was exactly 77 degrees?

Guest Jun 9, 2019

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789

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Help please!

sinclairdragon428 Jun 9, 2019

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1612

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What is the population density of antelopes?

A biologist is researching the population density of antelopes near a watering hole. The biologist counts 32 antelopes within a radius of 3/4 km of the watering hole.

What is the population density of antelopes?
read more ..

jiminblossoms Jun 9, 2019

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Translations of graphs

Two graphs are drawn that belong with the family of functions with the function notation f(x) = a + √x-1
a. Which value of a belongs to/gives you graph 1 read more ..

Guest Jun 9, 2019

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681

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sinclairdragon428 Jun 9, 2019

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688

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+379

Help please!

sinclairdragon428 Jun 9, 2019

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766

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In triangle ABC, angle B = 90 degrees, and AC = 13 cm.

In triangle ABC, angle B = 90 degrees, and AC = 13 cm.

Determine:
a) AB if angle C - 26 degrees. read more ..

Guest Jun 9, 2019

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867

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A swamp separates points L and R.

A swamp separates points L and R. To determine the distance between them, Ciana stands at L and looks toward R. She turns about 45° and walks 52 paces from L to point P. From P, she looks at R and estimates that LPR is about 60°. How many paces is it from read more ..

Guest Jun 9, 2019

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583

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for each of the functions, state the period, amplitude and equation of the axis. then state the domain and range.

A) f(x) = -2sinx+6
B) f(x) = -7sin (x+10 degrees)
c) f(x) = -0.5 sin (x-30 degrees) + 1

Guest Jun 9, 2019

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459

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sketch each sinusoidal function.

show the calculations for 5 of the transformed coordinates.
A) f(x) = sin x + 5
B) f(x) = sin (x - 120 degrees)
C) f(x) = sin (x-30 degrees) + 4

Guest Jun 9, 2019

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570

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sine curves

state the transformation for each sinusoidal function and then sketch its graph. show the calculations for five of the transformed coordinates.

A) f(x) = sin(x+40 degrees) - 7
B) f(x) = sin (x+30 degrees) - 8
C) f(x) = read more ..

Guest Jun 9, 2019

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1482

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+379

Help please

sinclairdragon428 Jun 9, 2019

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780

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A tree casts a shadow 9.3m long when the angle of the sun is 43 degrees. How tall is the tree?

do we use the Pythagorean theorem or the tan law?

Guest Jun 9, 2019

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765

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In triangle ABC, B = 90 degrees, and AC = 13 cm.

In triangle ABC, B = 90 degrees, and AC = 13 cm.
Determine:
A) BC if C = 17 degrees. B) A if BC = 6cm .

Guest Jun 9, 2019

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677

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Math help

Guest Jun 9, 2019

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740

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+379

Help please!

sinclairdragon428 Jun 9, 2019

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774

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+379

deleted.

sinclairdragon428 Jun 9, 2019

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1670

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If $\Phi$ and $\varphi$ are the two distinct solutions to the equation x^2=x+1, then what is the value of ($\Phi$ - $\varphi$)^2?

If $\Phi$ and $\varphi$ are the two distinct solutions to the equation x^2=x+1, then what is the value of ($\Phi$ - $\varphi$)^2?

sinclairdragon428 Jun 9, 2019

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1490

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If (x+y)^2=78 and xy=13, what is (x-y)^2?

If (x+y)^2=78 and xy=13, what is (x-y)^2?
Thanks!

sinclairdragon428 Jun 9, 2019

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