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All Questions
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232613 Questions
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499
1
There is an angle such that What is the value of
There is an angle \theta such that
\sin\left(\frac\theta2\right) + \cos\left(\frac\theta2\right) = -\frac65.
What is the value of
\sin(\theta)?
I've tried expanding using the half angle formula, and solving it
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Guest
Oct 18, 2021
0
255
1
Polynomial
What is the polynomial of f so that $f(0)=47, f(1)=32, f(2)=-13, and f(3)=18?
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Guest
Oct 18, 2021
0
251
1
Domain
How many real numbers are not in the domain of the function
f(x) = 1/(x + 64) + 1/(x^2 + 64) + 1/(x^3 + 64)?
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Guest
Oct 18, 2021
0
338
1
need help
In terms of pi, what is the area of the circle defined by the equation $2x^2+2y^2+10x-6y-18=20?
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Guest
Oct 18, 2021
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303
1
math
The table below shows the relationship between the number of minutes y it takes a racecar to complete a lap x on a race track. Laps (x) 0 3 6 9 12 Minutes (y) 0 9 18 27 36 What is constant rate of change?
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Guest
Oct 18, 2021
0
315
1
need help
We know that the line DE is parallel to the line BC. Give that the area of triangle ADE is 9 and the area of triangle CDE is 6, find the area of Atriangle BC
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Guest
Oct 18, 2021
0
231
1
Help
Michael and Arish had a total of 496 collectible cards. Michael gave 1/3 of his collectible cards to Arish. Arish then gave 1/5 of his cards to Michael. In the end, they both had the same number of collectible cards. How many collectible cards did Michael
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Guest
Oct 18, 2021
0
224
0
Absolute Value
How many integers have an absolute value less than 20pi + 5*sqrt(2)?
Guest
Oct 18, 2021
0
379
1
+1982
Solve the system of two linear inequalities graphically.
Solve the system of two linear inequalities graphically.
x > 2 or y ≥ 7
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macabresubwoofer
Oct 18, 2021
+1
341
1
Algebra
The average of x + 6,6x + 2, and 2x is 4x-7. What is x?
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Guest
Oct 18, 2021
0
395
1
6x+4x-6=24+9x HELP
6x+4x-6=24+9x Show work pls
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Guest
Oct 18, 2021
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181
0
Algebra
Two parabolas are the graphs of the equations y=2x^2-7x+1 and y=8x^2-25x+13. Give all points where they intersect. List the points in order of increasing x-coordinate, separated by semicolons.
Guest
Oct 18, 2021
0
294
1
4^x = 1200
How do you solve this and explain 4^x = 1200
whats the x?
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Guest
Oct 18, 2021
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189
0
coordinates
The circle centered at (2,-1) and with radius 4$ intersects the circle centered at (2,6) and with radius sqrt{15} at two points A and B. Find (AB)^2.
Guest
Oct 18, 2021
0
340
1
Geometry
Lines XQ and XR are tangent to a circle, as shown below.
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Guest
Oct 18, 2021
0
234
1
Quadratic
The height (in meters) of a shot cannonball follows a trajectory given by h(t) = -4.9t^2 + 14t - 0.4 at time t (in seconds). As an improper fraction, for how long is the cannonball above a height of $7$ meters?
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Guest
Oct 18, 2021
0
222
0
Coordinates
Find y if the point (-6,y) is on the line that passes through (-1,7) and $(3,-12)$.
Guest
Oct 18, 2021
0
205
0
Quadratic
The graph of a certain quadratic y = ax^2 + bx + c is a parabola with vertex (-4,0) which passes through the point $(1,-16)$. What is the value of a?
Guest
Oct 18, 2021
0
307
1
help geometry
Let AB and CD be chords of a circle, that meet at point Q inside the circle. If AQ=6 ,BQ=12 and CD=38, then find the minimum length of CQ.
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Guest
Oct 18, 2021
0
341
2
matematik questions
4x + 5y = 13 x + 5y = 7
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Guest
Oct 18, 2021
0
242
1
Hi, please help… thanks!
In a box, the ratio of the number of red marbles to the number of blue marbles is 2:5. 1/3 of the red marbles are removed from the box. Find the ratio of the number of red marble to the number of blue marbles in the box in the end. Express your answer in
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Guest
Oct 18, 2021
0
455
2
+1982
Find the standard form of the equation for the circle with the following properties.
Find the standard form of the equation for the circle with the following properties.
Center (−4,−3/2) and tangent to the x-axis
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macabresubwoofer
Oct 18, 2021
0
406
1
+1982
Find the standard form of the equation for the following circle.
Find the standard form of the equation for the following circle.
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macabresubwoofer
Oct 18, 2021
0
512
1
Geometry
Quadrilateral ABCD is a parallelogram. Let E be a point on AB, and let F be the intersection of lines DE and BC. The area of triangle EBF is 1 and the area of triangle EAD is 20. Find the area of parallelogram ABCD.
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Guest
Oct 18, 2021
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