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precalc
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solve 5^y=4^y+3.Round your answer to the nearest tenth.
9 answers
asked by
95
457 views
find the solution of the equation in [0,2pi)
cos^2x-sinxcosx=0
3 answers
asked by
juli
391 views
f(x) =pi/2-x g(x)= 5sinx/8+cos x
find (gof)(pi/2) and (fof)(pi/2)
1 answer
asked by
juli
402 views
1/x is less than or equal to 4/x^3
4 answers
asked by
Declan
314 views
use power reducing identities to prove the identity
sin^4x=1/8(3-4cos2x+cos4x) cos^3x=(1/2cosx) (1+cos2x) thanks :)
3 answers
asked by
skye
2,052 views
I;m not sure if i am doing this right...I keep getting a negative intersection point, which doesn't seem possible.
Please help!
2 answers
asked by
Anonymous
483 views
simplify this expression...
x^4+125x/(x^3+5x^2-x-5) I get x^2+5x+25/(-5) but i cant get it to check...did i make an error
1 answer
asked by
Nicole
296 views
simplify this expression...
x^4+125x/(x^3+5x^2-x-5) I get x^2+5x+25/(-5) but i cant get it to check...did i make an error
1 answer
asked by
Nicole
353 views
f(x)=2+4x-x^2 when x is less than 2
thus f-1(x)=2-sqrt(-x+6) i need to show that f(f-1(x))=x, but i keep getting negative x...any
2 answers
asked by
ANON
675 views
# 1
a special window has the shape o a rectangle surmounted by an eqilatera tiangle. ifthe perimeter o the winow is 16 ft, what
1 answer
asked by
rebekah
432 views
how to graph y=5sin[3[2-pi/6]]+2
1 answer
asked by
Deb
287 views
I am stuck on this one problem and think it might be the teachers typo but don't want to point it out without being sure. You
1 answer
asked by
ANON
303 views
is the degree of a polynomial the number of x's or just the highest numbe of x's in a monomial
ex: f(x)=-3x^2(x+2)^3
1 answer
asked by
Rebekah
318 views
what is the minimum degree of a polynomial. How do I find that and how do I find the maximum nuber of turnin points. I know it
2 answers
asked by
Rebekah
521 views
#1
For what positive numbers will the cube of a number exceed four times its square? #2 For what positive numbers will the cube
2 answers
asked by
Rebekah
518 views
For the equation 2x 3 - 11x 2 + 12x + 9 = 0, the root 3 has a multiplicity of _____.
2 answers
asked by
brenn
528 views
1. if P(t)=3e^2t, for what value does P(t)= 2P(2)
2. Find all x for which the square root of log (x)= log square root of x
1 answer
asked by
Rebekah
425 views
1. Write an equation of the following using the particular function.
1. The function is sine. The amp is 2 and the domain is [0,
1 answer
asked by
Rebekah
482 views
The front sprocket off a bicycle is 12 centimeters and the rear one is 5 centimeters. If the front sprocket is rotating at 40
1 answer
asked by
Jessica
340 views
The front sprocket off a bicycle is 12 centimeters and the rear one is 5 centimeters. What is the linear speed of the chain
1 answer
asked by
Sarah
355 views
sine curve in the form of y = a sin(pi/2x) that passes through the point (2.5,-9.546)
1 answer
asked by
spencer
430 views
1. A plane is headed at 122 degrees with an air speed of 350mph in a wind that is blowing from 38 degrees. Find the ground speed
2 answers
asked by
sarah
524 views
(cos3x)^4+(sin3x)^4=cos(g(x))
find g(x)
1 answer
asked by
dylan
288 views
(cos3x)^4+(sin3x)^4=cos(g(x))
find g(x)
1 answer
asked by
dylan
299 views
(cos3x)^4+(sin3x)^4=cos(g(x))
find g(x)
1 answer
asked by
dylan
777 views
a circle is formed with a center (-3,5) and a radius.of 4 write the circle as a pair of parametric equations. then show how you
2 answers
asked by
gggggg
493 views
There is a line with two rectangular pt (3, 4)&(6,-3)write this line as a pair of parametric equations then show how you can
1 answer
asked by
brady
373 views
Let a subscript n be the remainder when n is divided by 5.
a)find a subscript 11 and a subscript 400 b) if a subscript m =3, find
1 answer
asked by
Rebekah
412 views
partial decomposition
12/x(x-2)(x+3)
1 answer
asked by
jinie
286 views
solve the following logarithmic equation:
2lnx= log base e^3 343
1 answer
asked by
Anonymous
405 views
Suppose the value of quantity A changes from a starting value of x to a final value of y.
Write an expression using x and y that
1 answer
asked by
BeeBee
443 views
A group of students drove from Lawrence, KS to Denver, CO. They passed a restaurant 111 miles from Lawrence at 10 pm and stopped
2 answers
asked by
BeeBee
507 views
This question is from the previous question.
What was the change in distance in miles?
1 answer
asked by
BeeBee
308 views
Same question from previous problem.
b. As the car traveled from 309 miles from Lawrence to 352 miles from Lawrence, what was the
1 answer
asked by
BeeBee
838 views
Old McDonald has 1000 feet of fencing, and wants to build a pen along the side of his barn that will have two separate areas-
5 answers
asked by
adina
862 views
The cost of manufacturing a semi-circular window is the cost of the glass pane together with the cost of the framing material.
2 answers
asked by
BeeBee
683 views
Find the area of a sector and arc length whose central angle is 0.5 radians and a radius of 10 inches.
2 answers
asked by
Andy G
585 views
Memphis and New Orleans are approximately on the same meridian. Memphis has a lattitude of 35 degrees north and New Orleans has
1 answer
asked by
Andy G
435 views
A celing fan with 16 inch blades rotates at 45 revolutions per minute. Find angular speed of fan in radians per minute. Find
4 answers
asked by
Andy G
1,465 views
Find the length of the arc on a circle of radius
7 ft intercepted by a central angle 220◦ . Answer in units of ft
2 answers
asked by
yolo
633 views
The angle of elevation to the top of a building from a point on the ground 20 degrees and the angle of elevation from a point 25
2 answers
asked by
adam
554 views
find the rational expression R whose numerator and denominator have degree 2 and leading coefficients of 1 such that (x^2 +
4 answers
asked by
Anonymous
813 views
Find the focus and directrix of y=4x^2
1 answer
asked by
moooose
327 views
A projectile is launched from a platform 20 feet high with an initial velocity of 48 feet per second, The height h of the
2 answers
asked by
Brooke
900 views
9.) Write an equation of the line that passes through (-2,3) & is @parallel b) perpendicular to the line y=-4x+1
1 answer
asked by
Johni
338 views
write a linear equation to fit each situation or description.
1) the line through (2,4) parallel to the x axis. 2) the line
4 answers
asked by
d
742 views
write an equation to match each description.
1) a snowball is 8 cm across and melting so that its diameter is decreasing at a
1 answer
asked by
chloe
389 views
For the graph y=2, what is the:
A) Domain B) Range C) X values of all zeroes D) Equations of all asymptotes E) 1 to 1 or not F)
1 answer
asked by
u
403 views
how do you find x for the function: g(x) = 2^3(square root of X)-1
3 answers
asked by
june
313 views
D(x) = x^2+2x
E(x) = -2/(5x-1) D/E=
1 answer
asked by
d
300 views
domain of 16x^2+8x-1?
3 answers
asked by
deee
280 views
G(x)=2x+7
H(x)=1/(x+2) 1) H(G(x))= J: y=-3x^2 2) J(H(x))= 3) J/H=
1 answer
asked by
a
252 views
Given that sin 64° = 9/10 and cos 64° = (√19)/10 find the following:
1. cot 64° = 2. cos -64° = 3. csc 64° = 4. csc -26°
4 answers
asked by
a
493 views
Given that sec 3π/10 ≈ 17/10 and csc 3π/10 ≈ 17/14, find the following:
1. sin 3π/10 ≈ 14/17 (is this one correct) 2.
2 answers
asked by
a
550 views
y=10cos(2π/3)(x-.3)+50
x=17.2 i plugged this into the calculator and i got -34.5, but the answer is 43.3 how do i get that
5 answers
asked by
mary
495 views
i also need help with these two questions:
1/r=1/r1 +1/r2 solve for r1 and: f= G(mM/r^2); solve for m
1 answer
asked by
rebecca
321 views
3- l2x-4l is less than or equal to 1
are the values of x x is greater than or equal to 3 x is less than or equal to -3
2 answers
asked by
rebecca
520 views
a sled is tied to a rope that makes an angel of 32° with the level ground. if the rope is pulled with 32 kg of force, how much
2 answers
asked by
yani
591 views
Luke and Mason are standing 23 feet apart on the football field. Luke throws a high, slow pass to Mason. While the ball is in
4 answers
asked by
jake
517 views
prove the identity
(1 + tan x) / sin x = csc x + sec x
1 answer
asked by
clarice
413 views
prove each identity
1) (sec - cos) / tan = sin 2) (csc^2 - 1) / csc^2 = cos^2 3) (sin/csc) - 1 = -cos/sec
1 answer
asked by
clarice
445 views
prove the identity: cos^4 - sin^4 = cos^2 - sin^2
(cos^2 + sin^2)(cos^2 - sin^2) cos^2 + sin^2 = 1 cos^2 - sin^2 = cos^2 - sin^2
2 answers
asked by
dipper
529 views
Solve in radians.
1) sin2X = 1/2 2) tan2 (X + pi/2) = 1 3) 5 - 3sec (X - pi/4) = -1
1 answer
asked by
j
455 views
solve in degrees
1) 2sin2 (x/4) = 1 2) 2 cos (3x) + 1 = 0 3) cot2 (x + 18°) = 1 4) (1 + tan(x + 87°)) / 2 = 7
1 answer
asked by
yani
333 views
h = -15 sin (π/7 (t-2)) + 42
h is the height of the ball above the floors in inches at time t seconds 1) what is the highest the
2 answers
asked by
yani
510 views
Solve. Give the answers in degrees so that 0° ≤ θ < 360°.
1) (5 cos θ - 1) / 2 = 1 answers: 53°, 127°, 233° 2) 3 cot
4 answers
asked by
owen
531 views
solve. give the answers so that 0 ≤ x < 2π.
1) sin x + 4 = 5 csc x answer: π/2 2) 3 csc x + 15 = 0 answer: -.20 are my
1 answer
asked by
owen
412 views
I don't understand how to do these w/o calc.
I tried to write it in a way that will make someone understand how to read it. Hope
3 answers
asked by
Katie
631 views
log ______ = -2.3
1 answer
asked by
yani
349 views
Solve: round to the thousandths if necessary!
1) 4^3/4x+5 = 12 2) log(x-1) + log x = log 6 3) 2log(base 4) 5 - log(base 4) x +
1 answer
asked by
justin
460 views
Is triangle ABC scalene, isosceles, or equilateral if A = (4, 6) B = (-4, 2) and C = (0, 2)? Why?
2 answers
asked by
Patricia
880 views
For each:
a) Identify the ellipse as horizontal or vertical b) Give the coordinates of 1) The center 2) The major vertices 3) The
2 answers
asked by
jim
491 views
Find the standard form equation for each ellipse described.
1) Major vertices at (0, 3) and (0, -3), minor vertices at (2, 0) and
2 answers
asked by
jean
559 views
The point (3, -4) is on the terminal side of an angle(theta) . What is cos(theta)
3 answers
asked by
jj
1,438 views
f(x)= x + 3. Find and simplify :
f(a+h)−f(a) h the x +3 is under a radical sign as well! so its the square root of x +3
3 answers
asked by
Jillian
345 views
4. REVIEW PROBLEM: Solve).
√3-2x + √3x +13 =5 the term (3-2x) is under a radical as well as the term (3x+13). Please show all
2 answers
asked by
Jillian
473 views
ln(e^(5)·3^log3(e)+1/2e^-3ln(2)
the first base e has en exponent of 5 times 3 to the power/exponent of log with a base of 3 (3).
2 answers
asked by
Jillian
492 views
Solve the logarithmic equation for x. (Enter your answers as a comma-separated list.)
log2(x + 17) − log2(x − 2) = 1 2 is the
4 answers
asked by
JB
1,487 views
2^(3x + 1) = 3^(x − 2)
(a) Find the exact solution of the exponential equation in terms of logarithms.
4 answers
asked by
JB
892 views
Solve the equation. (Enter your answers as a comma-separated list. Round your answers to four decimal places.)
2^x − 8(2^−x)
3 answers
asked by
JB
1,385 views
Solve the equation. (Enter your answers as a comma-separated list.)
5x^2e^(−2x) − 3x^3e^(−2x) = 0
2 answers
asked by
JB
648 views
Let f(x) = 2x and g(x) = √(x − 7). Find and simplify completely
a.) f(3+h)−f(3)/ 8h b.) g ◦ f)(5)/ (f ◦ f)(3) for part
3 answers
asked by
help!
694 views
use the sum to product formula to simplify
sin 42degrees+sin 18 degrees=sin A degrees 0<A<90 degrees A=???degrees
3 answers
asked by
roger
881 views
4^log16 (7)
the base of the log is 16. 4 is being raised to the entire log16 (7). show all steps please!
1 answer
asked by
help!
440 views
Find the exact value of each expression, if it exists:
the -1 are representing the inverse functions! (a) sin -1 (-√2/2) (b)
2 answers
asked by
help!
986 views
p(x)=x^3 -6x^2 +13x -10. find all the solutions to the equation p(x)=0.
i am not allowed to use -b/2A
2 answers
asked by
help!
685 views
tan(θ + ϕ);
cos(θ) = − 1/3 θ in Quadrant III, sin(ϕ) = 1/4 ϕ in Quadrant II evaluate the expression
5 answers
asked by
help!
5,769 views
solve the equation
cos(x) + sin(x) = 1
1 answer
asked by
help!
400 views
An object is attached to a coiled spring. The object is pulled down (from its rest position) and then released. Given that the
1 answer
asked by
victoria
1,146 views
When an airplane leaves the runway, its angle of elevation is 18 and its speed is 275 feet per second. Find the airplane’s
1 answer
asked by
victoria
717 views
A projectile is launched from a platform 10 feet high with an initial velocity of 72 feet per second, The height h of the
3 answers
asked by
Tony
979 views
Suppose that cos θ = 12/13 and that θ is a Quadrant IV angle.
(a) Find the exact value of sin θ. Show work. (b) Find the exact
4 answers
asked by
Tony
1,669 views
Letf(x)=2x2 –5 and g(x)=x+4.
(a) Find the composite function ( f o g)(x) and simplify. Show work. (b)Find (f og)(3).Showwork.
1 answer
asked by
Tony
360 views
Given a square matrix M, we say that a nonzero vector v is an eigenvector of M if Mv=kv for some real number k. The real number
4 answers
asked by
katie
891 views
A Norman window has the shape of a square with a semicircle
mounted on it. Find the width of the window if the total area of the
3 answers
asked by
lauren
1,197 views
Use the equation 〖(y+2)〗^2/4-((〖x+3)〗^2)/49=1 to find the following:
a. center: b. vertices: c. foci: d. graph:
1 answer
asked by
lisa
424 views
Write an equation of the hyperbola given that the center is at (2, -3), the vertices are at (2, 3) and
(2, - 9), and the foci are
2 answers
asked by
lisa
515 views
Identify the center, intercepts, and domain, and range of the equation
x^2/4+y^2/9=1
1 answer
asked by
lisa
339 views
A windshield wiper on a certain model car pivots through an angle of 123°. The total arm and blade length is 24 inches. If the
2 answers
asked by
Catalina
904 views
Sketch the graph of the function
f(x) = (x+4)3(x+1)(x−2)2(x−5). /(x+3)2(x+1)(x−3)
1 answer
asked by
Anonymous
326 views
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