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199738 Questions
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23
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The digits $1,2,3,4$ and $5$ can be arranged to form many different $5$-digit positive integers with five distinct digits. In how many such
The digits $1,2,3,4$ and $5$ can be arranged to form many different $5$-digit positive integers with five distinct digits. In how many such integers is the digit $1$ to the left of the digit $2$? (The digits 1 and 2 do not have to be next to each other.)
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Guest
Jul 20, 2021
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25
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Help needed.
Expand the product \left(x-2\right)^2\left(x+2\right)^2. What is the product of the nonzero coefficients of the resulting expression, including the constant term?
Guest
Jul 20, 2021
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23
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function
Let
f(x) = -x + 3 if x <= 0
f(x) = 2x + 15 if x > 0
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Guest
Jul 20, 2021
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30
1
help algebra
Find the value of x if 9^x - 6*3^x - 27 = 0
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Guest
Jul 20, 2021
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35
2
+71
probability
is it 33%?
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justinwh333
Jul 20, 2021
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33
1
help please
The expression 3y^2 - y - 24 can be written as (3y+a)(y+b) where a and b are integers. What is a-b ?
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Guest
Jul 20, 2021
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33
1
HELP!!
A surveyor needs to find the distance BC across a lake as part of a project to build a bridge. The distance from point A to point B is 325 feet. The measurement of angle A is 42° and the measurement of angel B is 110°. What is the distance BC across the
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Guest
Jul 20, 2021
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36
1
HELP ASAP!!
You are in a hot air balloon that is 600 feet above the ground where you can see your friend. If the angle from your line of sight to your friend is 20°, how far is he from the point on the ground below the hot air balloon to the nearest foot?
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Guest
Jul 20, 2021
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37
2
Which is one way that analyzing ice benefits scientist who study ancient climates?
Which is one way that analyzing ice benefits scientist who study ancient climates?
A) scientists can analyze frozen volcanic dust To help predict eruption's.
B) scientist can study the layers of ice cores to gather information
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Guest
Jul 20, 2021
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44
1
help
Joe will randomly select two letters from the word CAMP, four letters from the word HERBS, and three letters from the word GLOW. What is the probability that he will have all of the letters from the word PROBLEM? Express your answer as a common fraction.
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Guest
Jul 20, 2021
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49
1
+4
help urgent
hi everyone, i need help on this problem
(a) Simplify
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userunknown5376
Jul 20, 2021
+1
42
2
+40
help
16c4-16c12
im stuck
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PiggyEthyn
Jul 20, 2021
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33
1
Coordinates
The equation of an ellipse is x^2+y^2/4=1. The equation of a line is y=3x+b. For what values of b is the line tangent to the ellipse?
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Guest
Jul 20, 2021
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25
0
plz help
x^2 + bx + b + 3 = 0 has roots of the form x = (-b +/- sqrt(7))/2, where b > 0. Find b.
Guest
Jul 20, 2021
+1
48
5
+54
Trignometry Help
Consider the diagram below, with , as well as and :
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elloooo
Jul 20, 2021
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24
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Inequalities
Let a, b, c, and d be real numbers such that a > b and c > d. Which of the below statements are true?
(A) a + c > b + d.
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Guest
Jul 20, 2021
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22
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help quadratic
What is the minimum value of the expression 2x^2 + y^2 + 8x - 24y + 62 for real x and y?
Guest
Jul 20, 2021
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35
1
1/4
1/4 x 8
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Guest
Jul 20, 2021
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42
2
geometry
Right triangle ABC has side lenghts AB = 3, BC = 5. Square XYZW is inscribed in triangle ABC with X and Y on line AB, and Z on line BC. What is the side length of the square.
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Guest
Jul 20, 2021
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33
1
help geometry
Points X and Y lie on sides AB and AC respectively of triangle ABC. If AB=7, AC=10, AX=4 and AY=8, what is the ratio of the area of triangle AXY to the area of triangle ABC?
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Guest
Jul 20, 2021
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23
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help geometry
A triangle with integer sides has perimeter 16. How many such non-congruent triangles are there? (A 3-4-5 triangle is considered congruent to a 3-5-4 triangle because we can reflect and rotate the triangles until they match up.)
Guest
Jul 20, 2021
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34
1
chocolates in abox
You have a box of chocolates that contains 54 pieces of which 31 are solid chocolate, 19 are filled with cashews, and 4 are filled with cherries. All the candies look exactly alike. You select a piece, eat it, select a second piece, eat it, and finally
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Guest
Jul 20, 2021
Jul 19, 2021
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51
1
Probability
You sit in your backyard and notice that a tree drops its leaf into a pool. On average 30 leafs fall into the pool each minute. What is the probability that the 15th leaf takes 10 seconds to fall into the pool and that at most 6 leafs fall betweeb
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Guest
Jul 19, 2021
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