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All Questions
^{+0}
188479 Questions
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56
3
m + 5
m + 5
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Guest
Jan 14, 2021
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39
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counting
Find the number of subsets of {1, 2, 3, ..., 10}, where the sum of the smallest element an the largest element is equal to 11.
Guest
Jan 14, 2021
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54
1
How many four-digit positive integers are there with thousands digit
How many four-digit positive integers are there with thousands digit ?
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Guest
Jan 14, 2021
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56
2
circle
For what value of k does the equation x^2+10x+y^2+16y-k=0 represent a circle of radius 6?
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Guest
Jan 14, 2021
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48
0
+20
PLZ HELP!!!!
If $-5\leq a \leq -1$ and $1 \leq b \leq 3$, what is the least possible value of $\displaystyle\left(\frac{1}{a}+\frac{1}{b}\right)\left(\frac{1}{b}-\frac{1}{a}\right) $? Express your answer as a common fraction.
qwertyytrewq
Jan 14, 2021
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66
2
parabola
The graph of the parabola defined by the equation y=-(x+1)^2+1 is shifted 1 unit to the right, then shifted 5 units down. The resulting parabola has zeros at x=a and x=b, where b≥a. What is b-a?
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Guest
Jan 14, 2021
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376
1
Irregular shape area
PLZZZZZ help!! In the figure, QUAD is a quadrilateral. QUAD is “enclosed” by the rectangle RECT. This means that each vertex of QUAD is on a side of rectangle RECT. Segment QA is parallel to two of the sides of the rectangle. The length of QA is 18 and
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Guest
Jan 14, 2021
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45
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плииииз
Выполни действия 2) 0,28:0,03*3/4*1,4/ 3 2/3*0,36*4,9:3,3=
Guest
Jan 14, 2021
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67
2
Just Some Random Question
What is 133 1/3 % of 21? With Solution
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Guest
Jan 14, 2021
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90
2
pls help!!! thanks!
the function f is defined by f(x)=cx-3 where c is a constant. find c, if the value of f at x=1.5 is equal to -5.25
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Guest
Jan 14, 2021
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130
2
+10
pls help!!!
Find area of the isosceles triangle formed by the vertex and the x-intercepts of parabola y=x^2-4x+21.
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MathmerMather
Jan 14, 2021
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83
1
nt prob
Find all positive integers n, less than 17, for which n! is an integral multiple of 49.
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Guest
Jan 14, 2021
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96
2
find angle DEF
D,E,F are the feet of the altitudes in triangle ABC. Find angle DEF (in degrees).
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Guest
Jan 14, 2021
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80
2
divisible
Determine the number of five-digit integers (37abc) in base 10 such that (37abc) is divisible by 37.
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Guest
Jan 14, 2021
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62
0
HELP! Integral of Difficult Function sqrt(1-cos(x)^3)
Guest
Jan 14, 2021
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86
3
help needed with sum
Find the sum 1*3 + 3*5 + 5*7 + ... for the first n terms.
heureka
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Guest
Jan 14, 2021
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66
1
help
The vertex of a parabola is at (12,-4) and its axis of symmetry is vertical. One of the ￼x-intercepts is at (15,0)￼. What is the ￼x-coordinate of the other ￼x-intercept?
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Guest
Jan 14, 2021
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76
1
Teacher
The water level in Ricky Lake changes at an average of (-7/16) inch every 3 years. Based on the rate above, how much will the water level change after one year? * Aswers?
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Guest
Jan 14, 2021
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75
1
+29
Basic probability question
Four standard six-sided dice are rolled. What is the probability that the product of the numbers on the top faces of all four dice is a prime number? Express your answer as a common fraction.
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Cloud
Jan 14, 2021
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65
1
perimeter
What is the perimeter of triangle ABC?
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Guest
Jan 14, 2021
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62
1
Math
The volume of liquid was 500 mL. When measured, a scientist found the volume to be 495 mL. What was the scientist’s percent error?
catmg
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Guest
Jan 14, 2021
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77
1
+4
Math Help Please Help!
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Legion
Jan 14, 2021
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75
1
Tessa had $35. She bought a book for $7 and a magazine for $5. Which expression correctly shows the total money Tessa has left?
Tessa had $35. She bought a book for $7 and a magazine for $5. Which expression correctly shows the total money Tessa has left?
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catmg
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Guest
Jan 14, 2021
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