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Post New Question
All Questions
+0
234927 Questions
0
374
1
Equation
Three gears of a transmission have a total of 85 teeth. While the first makes 5 revolutions, the second 9 and the third 15 times. How many teeth does each wheel have?
ElectricPavlov
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Guest
Jun 27, 2021
0
409
2
Help please
Estimate then calculate the width of a quarter in imperial units.
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Guest
Jun 27, 2021
0
462
2
PLEASE HELP!!!!!
Let $C$ be the circle with equation $x^2+2y-9=-y^2+18x+9$. If $(a,b)$ is the center of $C$ and $r$ is its radius, what is the value of $a+b+r$?
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Guest
Jun 27, 2021
0
380
1
halp? geometry
AHAHA I SHOULD KNOW THIS
but I don't and I need help ://
thanq u!! :)
read more ..
ElectricPavlov
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Guest
Jun 27, 2021
0
358
1
Help algebra
Let f(x) = x^14 - 7x^9 - 3x^2 + 2 and g(x) = 2x^14 + 3x^10 - 6x^8 + 2x - 1. Let b be a constant. What is the smallest possible degree of the polynomial f(x) + b*g(x)?
If a is the constant the the largest possible
read more ..
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Guest
Jun 27, 2021
0
378
1
geometry
Semi circles are constructed on the three sides of a triangle as shown below. Find the area of the shaded region
ElectricPavlov
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Guest
Jun 27, 2021
0
338
1
Coordinates
The equation of the line passing through (1,11) and (4,8) can be expressed in the form
x/a + y/b = 1.
Find a.
ElectricPavlov
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Guest
Jun 27, 2021
0
370
2
Algebra
r and s are the roots of 3x^2 + 4x - 12 = 0. Find r^2+s^2 Please help me!!!
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Guest
Jun 27, 2021
0
520
1
help math
The points (x,y) represented in this table lie on a straight line. The point (13,q) lies on the same line. What is the value of p + q? Express your answer as a decimal to the nearest tenth.
$\begin{array}{c|c} x & y \\ \hline
read more ..
MathProblemSolver101
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Guest
Jun 27, 2021
0
396
6
Algebraic Expansion
What is the coefficient of x^3 in the expansion of (x + 2*sqrt(3))^5?
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Guest
Jun 27, 2021
0
387
2
+4
Trig Limits
Solve:
x→0
given that:
read more ..
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AbdullahRezeqR
Jun 27, 2021
0
246
0
Counting
How many cubic (i.e., third-degree) polynomials f(x) are there such that f(x) has nonnegative integer coefficients and f(1) = 4?
Guest
Jun 27, 2021
0
278
1
Precalc
In triangle PQR, we have angle P = 90 degrees, QR = 15, and tan R = 6 cos Q. What is PQ?
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Guest
Jun 27, 2021
0
368
3
help asap!
If $a$ and $b$ are positive integers such that $\gcd(a,b)=210$, $\mathop{\text{lcm}}[a,b]=210^3$, and $a < b$, how many possible values are there for $a$?
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Guest
Jun 27, 2021
0
382
4
Multi-Step
A herd of cattle on a farm consists of a quarter of cows and a quarter of oxen, plus 48 goats. Three goats have been exchanged for hay and straw, so that the herd still consists of 120 animals. How big was the herd originally?
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Guest
Jun 27, 2021
0
231
0
Precalc
In right triangle ABC, we have AB = 10, BC = 24, and ABC = 90 degrees. If M is AC on such that is an angle bisector of ABC, then what is cos ABM?
Guest
Jun 27, 2021
0
384
1
+14
Send help soon.
The government requires speedometers on cars sold in the United States to be accurate within ±2.5% of
the actual speed of the car. If your speedometer reads 60 miles per hour while you are driving on a
highway, what is the range of possible actual
read more ..
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IExist
Jun 27, 2021
0
356
1
Geometry
Circles A, B, and C are externally tangent to each other. If AB = 14, BC = 18, and AC = 28, then find the radii of each of the circles.
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Guest
Jun 27, 2021
0
287
1
Im so confused plz help
How many numbers can be expressed as the sum of two or more distinct elements of the set $\{ 0, 1, 2, 4, 8, 16 \}$?
This question has been posted before but I am very confused about the solution
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Guest
Jun 27, 2021
0
355
1
Pre-calc
In right triangle BCD with angle D = 90 , we have BC = 8 and BD = 4. Find sin B.
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Guest
Jun 27, 2021
0
276
1
Algebra
Let a be a positive real number such that all the roots of x^3 + ax^2 + ax - 2a - 1 = 0 are real. Find the smallest possible value of a.
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Guest
Jun 27, 2021
0
258
1
Algebra
Let u and v be the solutions to 3x^2 + 5x + 7 = 0. Find 1/u + 1/v.
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Guest
Jun 27, 2021
+1
411
5
+18
Plz help
Joanna has six beads that she wants to assemble into a bracelet. Two of the beads have the same color, and the other four all have different colors. How many different ways can Joanna assemble her bracelet? (Two bracelets are considered identical if one
read more ..
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Halpplzplzplz
Jun 27, 2021
0
465
4
+18
Help plz
Catherine rolls a 6-sided die five times, and the product of her rolls is 300. How many different sequences of rolls could there have been? (The order of the rolls matters.)
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Halpplzplzplz
Jun 27, 2021
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