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Post New Question
All Questions
+0
234773 Questions
0
472
2
help with circles
Three circles fit inside a square as shown where two small circles touch a large circle. Given that the radius of the small circles is 3 and the side length of the square is 14, find the radius of the larger circle
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Guest
Jan 25, 2021
0
284
0
need help
Given that x satisfies $x^2 - 5x + 1 = 0$, find the value of $x^4 + \dfrac{1}{x^4}$.
Guest
Jan 25, 2021
0
424
4
Halp! :0
Find all the values of $a$ for which the equations \begin{align*} x^2 + ax + 1 &= 0, \\ x^2 - x - a &= 0 \end{align*}have a common real root. Enter all the possible values, separated by commas.
what I did:
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Guest
Jan 25, 2021
0
311
1
help plz
The diagram has four equilateral triangles. The orange equilateral triangle has area 20, and the red equilateral triangle has area 45. Find the area of the yelloe equilateral triangle.
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Guest
Jan 25, 2021
0
704
4
+88
Triangles
A standard baseball diamond is a square 90 feet on each side. Find the distance of a throw made from the catcher 3 feet behind home plate in an attempt to throw out a runner trying to steal second base. Round to the nearest whole number.
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grs75
Jan 25, 2021
0
376
3
MATH HOMEWORK!!!!!
How many times can 7 go into 61 without going over?
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Guest
Jan 25, 2021
0
301
1
math question
The average of the $N$ integers
\[ N+1, N+2, N+3, \ldots 2N \]
is 80. What is N?
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Guest
Jan 25, 2021
0
604
1
Find angle CAB
In the given figure ABCD is a cyclic quadrilateral.The tangent to the circle at B meets DC produced at F. If $\angle EAB=85°$ and $\angle BFC=50°$ , find $\angle CAB$.
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Guest
Jan 25, 2021
0
664
2
Help
At a basketball game, a team made
52
successful shots. They were a combination of 1- and 2-point shots. The team scored
89
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Guest
Jan 25, 2021
0
375
1
trig
a, b are angles in the first quadrant such that tan(a)=3/4 and tan(b) = 5/12
Find sin(a+b)
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Guest
Jan 25, 2021
0
434
1
help math
Wilma and Greg were trying to solve the quadratic equation x^2 + bx + c = 0.Wilma wrote down the wrong value of b (but her value of c was correct), and found the roots to be 1 and 8. Greg wrote down the wrong value of c (but his value of b was correct),
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Guest
Jan 25, 2021
0
369
1
quadratic
The equation y = -16t^2 + 60t + 54 describes the height (in feet) of a ball thrown upward at 60 feet per second from a height of 54 feet from the ground, where represents time, measured in seconds. In how many seconds will the ball hit the ground? Express
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Guest
Jan 25, 2021
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530
2
What is 12 1/2% of $2000 ?????
What is 12 1/2% of $2000 ?????
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Guest
Jan 25, 2021
0
407
2
factoring
The expression 3x^2 + 10x + 8 can be written in the form (3x + A)(x + B) where A and B are integers. What is the value of A - B?
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Guest
Jan 25, 2021
-1
469
1
+216
Math Help Please
Can someone help me, please
I know that the answer is not 1
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Jmaster10
Jan 25, 2021
0
456
1
counting
An ordinary 6-sided die has a number on each face from 1 to 6 (each number appears on one face). How many ways can I paint two faces of a die blue, so that the product of the numbers on the painted faces isn't equal to 8?
catmg
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Guest
Jan 25, 2021
0
472
1
As n ranges over the positive integers, what is the sum of all possible values of the greatest common divisor of 3n+4 and n?
As n ranges over the positive integers, what is the sum of all possible values of the greatest common divisor of 3n+4 and n?
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Guest
Jan 25, 2021
0
494
1
+96
Piecewise defined functions
Let
Find f(-7)
catmg
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kanisan
Jan 25, 2021
0
355
1
geometric series
An infinite geometric series has common ratio 1/3 and sum 25. What is the second term of the sequence?
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Guest
Jan 25, 2021
0
410
2
algebra
Find all integers n such that the quadratic 7x^2 + nx - 12 can be expressed as the product of two linear factors with integer coefficients.
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Guest
Jan 25, 2021
0
347
2
+12
Help please
The function
f(z)=(−1+i3–√)z+(−23–√−18i)2f(z)=(−1+i3)z+(−23−18i)2
represents a rotation around some complex number c. Find c.
I don't know how to proceed, help would be appreciated.
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nikhita.usa
Jan 25, 2021
0
306
1
proportion
In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, and inversely proportional to resistance, R
I = V/R.
It's also true that resistance is directly proportional to the length of the
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Guest
Jan 25, 2021
0
406
1
уравнение
x+(x+12)=124
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Guest
Jan 25, 2021
0
294
0
Help please
Help please
Find polynomials f(x) and g(x) such that
(x^8 - 1)f(x) + (x^5 - 1)g(x) = x - 1.
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Guest
Jan 25, 2021
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