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All Questions
^{+0}
225578 Questions
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284
2
Probability
Randomly selecting a page in a booklet, the chance to get an even page number is 7/15. How many pages does the booklet have?
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Guest
Jan 22, 2022
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166
1
Digits
What is the units digit of the sum of all positive multiples of 6 smaller than ?
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Guest
Jan 22, 2022
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250
2
What is correct in binary code?
What is correct in binary code?
01000011011011110111001001110010011001010110001101110100
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Guest
Jan 22, 2022
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158
1
need help
If each dimension of a rectangle decreases by 1, its area will decrease from 2017 to . What will be the area of the rectangle if each of its dimensions increases by 1?
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Guest
Jan 22, 2022
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174
1
geometry
In an isosceles △ABC (AC = BC) its incircle touches the side BC at point T. Given AC = 4 and AT = 3. Find the length of AB.
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Guest
Jan 22, 2022
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119
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geometry
Two sides of a parallelogram are 30 and 20. One diagonal has a length of . What is the length of the other diagonal?
Guest
Jan 22, 2022
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168
0
+4
Restaurant Table Problem. I have tried it on my own but am unsure of my answer. Would appreciate if someone could confirm.
An architect is designing the dining area of a new restaurant. The owner was to use 3 1/2 ft by 3 1/2 ft square tables to accomodate groups of 4 guests and join two or three tables to accomdate bigger groups. The architect must adhere to the following requirements:
read more ..
bse16084
Jan 22, 2022
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270
1
Algebra
Find all the values of a for which the equations
x^2 + ax + 1 = 0
x^2 - x - a = 2
read more ..
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Guest
Jan 22, 2022
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283
0
+676
We consider the set of functions given by
We consider the set of functions given by
the equation with real parameter a.
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Straight
Jan 22, 2022
0
274
2
+31
Beautiful intricate math problem
Hello! Here is a really fun problem I came up with.
You are given a perfect square
read more ..
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ibhar
Jan 22, 2022
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152
0
Polynomial Functions
1. (a) Given the following equation, X^4-6x^3-2x+7 use synthetic division to test the following 3 pts and show if they are a root or not. Must show synthetic division for all 3 of the following test pts. Test these 3 possible root pts also called possible
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Guest
Jan 22, 2022
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168
1
word problem
A father is 9 times as old as his son. In three years, the father will be times as old as his son.
How old is the son?
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Guest
Jan 22, 2022
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158
1
quadratic
The quadratic x^2 + 5x + c = 0 has roots in the form of $x = \frac{-5 \pm \sqrt{17}}{2}$. What is the value of ?
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Guest
Jan 22, 2022
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183
2
Counting problem
How many ways can you arrange 2 boys and 3 girls in a line, if the 2 boys must stand next to each other?
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Guest
Jan 22, 2022
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153
1
Algebra
Find constants a and b such that (2x + 17)/(x^2 - x - 2) = a/(x - 2) + b/(x + 1) for all x such that x≠-1 and x≠2.
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Guest
Jan 22, 2022
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234
2
+12
help please
A kite is flying at a vertical height of 65 meters. It's string is attached to the ground at a 31 degree angle with the ground. How long is the string? Round to the nearest WHOLE NUMBER. (hint: draw a picture and find the hypotenuse)
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meeeeeee
Jan 22, 2022
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126
0
Polynomials
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
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Guest
Jan 22, 2022
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169
1
Coordinates
Let C be the circle with equation x^2+2y-9=-y^2+18x+9+12x+22. 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
Jan 22, 2022
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199
1
Polynomials
Consider the polynomial f(x) = 1 - 12x + 3x^2 - 4x^3 + 5x^4 and g(x) = 3 - 2x - 6x^3 + 19x^4. Find c such that the polynomial f(x) + cg(x) has degree 3.
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Guest
Jan 22, 2022
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134
0
Algebra
Find all pairs (x,y) of real numbers such that x + y = 10 and x^2 + y^2 = 56 + 3xy. For example, to enter the solutions (2,4) and (-3,9), you would enter "(2,4),(-3,9)" (without the quotation marks).
Guest
Jan 22, 2022
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231
1
Answer in old link
https://web2.0calc.com/questions/teachers-can-explain-how-to-do-this-thanks
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Guest
Jan 22, 2022
0
246
2
Algebra question
Calculate sqrt(60x)*sqrt(12x)*sqrt(63x)*sqrt(42x). Express your answer in simplest radical form in terms of x. Note: When entering a square root with more than one character, you must use parentheses or brackets. For example, you should enter sqrt(14) as
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Guest
Jan 22, 2022
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122
0
Trig
Let a, b, and t be real numbers such that
cos a + sin b = 3t+2
sin a + cos b = 4t + 6
Compute tan a + tan b.
read more ..
Guest
Jan 22, 2022
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