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Post New Question
All Questions
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232716 Questions
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338
1
Help quadratic
There exist constants a, h, and k such that 3x^2 + 16x + 4 = a(x - h)^2 + k for all real numbers x. Enter the ordered triple (a,h,k)
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Guest
Jun 25, 2021
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429
3
Plz help. HELP NEEDED FAST.
The real number satisfies Find all possible values of
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Guest
Jun 25, 2021
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325
1
Coordinates
Enter the letters of the points that lie on the line y=1/2*x - 4.
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Guest
Jun 25, 2021
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397
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Algebra
The average of 10 numbers is 85. If the numbers 70 and 78 are removed from the set of numbers, what is the average of the remaining numbers?
Wsai12
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Guest
Jun 25, 2021
+1
1208
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Solve the inequality $x(x + 6) > 16.$
Solve the inequality $x(x + 6) > 16.$
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Guest
Jun 25, 2021
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916
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Solve the inequality $4t^2 \le 9t - 2.$
Solve the inequality $4t^2 \le 9t - 2.$
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Guest
Jun 25, 2021
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406
1
GCD
Let f(x) = x^2 - x + 201. What is the greatest common divisor of f(100) and f(101)?
Wsai12
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Guest
Jun 25, 2021
-1
384
2
someone please help
a Y b is defined as a Y b=a^2 - 2ab + b^2 , what is the value of ?
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Guest
Jun 25, 2021
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842
2
A satellite launch rocket has a cylindrical fuel tank. The fuel tank can hold V cubic meters of fuel. If the tank measures d meter
A satellite launch rocket has a cylindrical fuel tank. The fuel tank can hold V cubic meters of fuel. If the tank measures d meters across, what is the height of the tank in meters?
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Guest
Jun 25, 2021
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392
1
An annuity
An annuity pays $1200 per year for 15 years. The money is invested at 5.2% compounded annually. The first payment is made 1 year after the purchase of the annuity. Determine the interest earned by the annuity over the 15 years.
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Guest
Jun 25, 2021
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383
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Help pls
Don won the “Cash for Life” lottery and will receive a $1000 per week for the next 25 years. How much must the lottery corporation invest today into an account that pays 4% compounded weekly to provide Don with the prize?
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Guest
Jun 25, 2021
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377
1
help with counting
How many different positive three-digit integers can be formed using only the digits in the set {2, 3, 5, 5, 5, 6, 6, 7, 8} if no digit may be used more times than it appears in the given set of available digits?
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Guest
Jun 25, 2021
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391
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Rationalize the Denominator
Rationalize the denominator of $\frac{2}{3\sqrt{5} + \sqrt{11}}$ and write your answer in the form $\displaystyle \frac{A\sqrt{B} + C\sqrt{D}}{E}$, where $B < D$, the fraction is in lowest terms and all radicals are in simplest radical form. What is
read more ..
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Guest
Jun 25, 2021
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208
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Question on roots
Find the sum of the roots, real and non-real, of the equation x^2001 + (1 - x)^2001 = 0, given that there are no multiple roots.
Guest
Jun 25, 2021
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339
1
Coordinates
A line with slope equal to 1 and a line with slope equal to 3 intersect at the point P(1,6) What is the area of triangle PQR?
read more ..
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Guest
Jun 25, 2021
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322
1
Coordinates
What is the intersection point of the line y = -2x + 5 and the line perpendicular to it that passes through the point (5,5)?
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Guest
Jun 25, 2021
0
351
3
plz help me
Write a mathematical expression using absolute value that says
x is at least twice as far from 5 than from 3
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Guest
Jun 25, 2021
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357
4
geometry
D is on side BC of triangle ABC. We know $ABC \sim ACD$ and angle A = 49 degrees. If BC = CD, what is angle B in degrees?
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Guest
Jun 25, 2021
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234
1
help plz
The product of all digits of positive integer M is 105. How many such Ms are there, with four digits?
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Guest
Jun 25, 2021
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352
1
number theory
For each positive integer n, let S(n) denote the sum of the digits of n. How many three-digit n's are there such that n == S(n) + S(S(n)) (mod 9)?
textot
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Guest
Jun 25, 2021
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588
2
Please answer question
In how many ways can 5 different keys be placed on a keychain? (Two arrangements are considered the same if one can be rotated or flipped to be identical to the other.)
UsernameTooShort
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Guest
Jun 25, 2021
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339
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Help algebra
Find all values of c such that c/(c - 5) = 4/(c + 4).
ElectricPavlov
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Guest
Jun 25, 2021
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451
1
if the answer to the cubic inches of a rectangle is 258 3/4 how do i arrive at this answer
if the answer to
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Guest
Jun 25, 2021
-1
633
2
quadratic function.
Most cars get their best gas mileage when traveling at relatively modest speed. The gas mileage M for a certain new car is modeled by the function. 𝑀(𝑠) = − 1/ 28*(𝑠^2) + (3 + 𝑚)𝑠 + (31 + 𝑚) , note: (m=8 )
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Guest
Jun 25, 2021
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