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Post New Question
All Questions
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230995 Questions
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168
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trig
In right triangle BCD with D = 90, we have BC = 9 and BD = 5. Find sin B.
Guest
Nov 19, 2021
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400
1
+58
P-Q formula
Insert correct characters to make the P-Q formula.
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Babbeln
Nov 19, 2021
0
238
1
Find a formula for the inverse of the following function, if possible.
Find a formula for the inverse of the following function, if possible.
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Guest
Nov 19, 2021
0
299
1
counting
How many ways are there to divide a red bracelet, a yellow bracelet, a green bracelet, and a black bracelet among 4 people if someone must receive exactly two bracelets?
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Guest
Nov 19, 2021
0
171
0
help with lines
The lines y = 2x and y = 8/3*x are drawn in the coordinate plane. Find the slope of the line that bisects the acute angle between these lines.
Guest
Nov 19, 2021
0
264
1
Counting
How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable and the boxes are distinguishable?
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Guest
Nov 19, 2021
0
287
1
physics
The speed of a car is decreasing uniformly from 35 m/s to 15 m/s in 4 s. The magnitude of the car's acceleration is —
Group of answer choices
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Guest
Nov 19, 2021
0
198
0
linear systems of equations
alan and joel work at two different cell phone stores. alan earns $200 per week plus $40 dor wach cell phone he sells. joel is not paid a salsry but earns $55 for each cell phone he sells. Alan and joel each sell the same number of cell phones joel needs
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Guest
Nov 19, 2021
0
184
0
Probability
A bag contains 9 hazelnuts, 10 almonds, and 5 walnuts. If 6 are drawn at random, what is the probability of exactly 4 walnuts?
Guest
Nov 19, 2021
0
282
1
Algebra
Find all pairs of real numbers such that x + y = 10 and x^2 + y^2 = 56 + xy.
For example, to enter the solutions and , you would enter "(2,4),(-3,9)" (without the quotation marks).
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Guest
Nov 19, 2021
0
1
203
2
Trig question
In ABC , cos B = 3/25 and angle A is 90 degrees. What is cos C?
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Guest
Nov 19, 2021
0
1
183
0
Function Composition
If t(x) = 9 + 2f(x) and f(x) = x^2 - x - 3, then what is t(f(-2))?
Guest
Nov 19, 2021
0
1
349
3
+14
Functions
Let
How many solutions does the equation f(f(x) have?
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SLAYER32beast
Nov 19, 2021
0
336
1
test
The line with equation y=hx+k passes through the point (−6,4) and is parallel to the line with equation y=12x+4. What is the value of k?
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Guest
Nov 19, 2021
0
1
286
1
Number Theory
If x and y are positive integers for which 3x + y + xy = 115, then what is x + y?
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Guest
Nov 19, 2021
0
1
293
1
Consider the following function.
Consider the following function.
Determine the more basic function that has been shifted, reflected, stretched, or compressed.
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Guest
Nov 19, 2021
0
328
1
Parabola
Find the equation whose graph is a parabola with vertex (2,4), vertical axis of symmetry, and contains the point (-1,-1). Express your answer in the form "ax^2 + bx + c".
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Guest
Nov 19, 2021
0
315
1
Algebra
The height (in meters) of a shot cannonball follows a trajectory given by h(t) = -4.9t^2 + 18t - 0.4 at time t (in seconds). As an improper fraction, for how long is the cannonball above a height of 6 meters?
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Guest
Nov 19, 2021
0
376
2
Write 37/20 as a percent
Write 37/20 as a percent
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Guest
Nov 19, 2021
0
192
0
Coordinates
The length of the segment between the points (2a, a - 4) and (4,1) is 2*sqrt(30) units. What is the product of all possible values for a?
Guest
Nov 19, 2021
0
325
1
Polynomials
Find a monic quartic polynomial with rational coefficients whose roots include x = 1 - sqrt(2) and x = 2 + sqrt(7).
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Guest
Nov 19, 2021
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193
0
Algebra
The equation x2 + ax + b = 0, where a and b are different, has solutions x = a and x = 2b. How many such equations are there?
Guest
Nov 19, 2021
-1
267
1
NEED HELP! DUE TONIGHT
1. Twelve hungry teenagers can devour a very large pizza in 20 minutes. How many teenagers would it take to finish a very large pizza in 15 minutes? (Assume that all teenagers eat pizza at the same rate.)
2. For a statue of Miss Levans, the amount of
read more ..
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Guest
Nov 19, 2021
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