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Post New Question
All Questions
+0
231334 Questions
+1
705
2
help
The two lines y - ax = 2 and x + 23y = 138 are perpendicular. What is the value of a?
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Guest
Jan 4, 2020
Jan 3, 2020
0
1842
4
+18
The directrix of a parabola is x = 0. Its focus is (2,6) . What is the standard form of the parabola? Enter your answer by filling in the
The directrix of a parabola is x = 0. Its focus is (2,6) .
What is the standard form of the parabola?
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Beanpole
Jan 3, 2020
+1
634
1
help
I drew rectangular grids with one more row than their column. The number of dots in the first four grids are 2, 6, 12, and 20, as shown in the diagram below:
read more ..
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Guest
Jan 3, 2020
+1
482
4
help
How many 3 - digit positive integers can be formed by using 1, 2, 3, 4, 5 without the repetition of digits?
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Guest
Jan 3, 2020
+2
3429
5
Confused
In how many ways can 4 teachers and 4 students be seated at a circular table if each student sits directly between two teachers? (Two seatings are considered the same if one can be rotated to form the other.)
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Guest
Jan 3, 2020
+1
456
4
Help please
A standard six-sided die is rolled 5 times. You are told that among the rolls, there was one 4 one 5 and three 6's. How many possible sequences of rolls could there have been? (For example, 6,5,6,6,4 is one possible sequence.)
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Guest
Jan 3, 2020
+1
383
1
help
Find the radius of the circle in the diagram.
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Guest
Jan 3, 2020
0
490
2
Help
Ok so i have 280 recipes and i want to do them over the year so 365 days how many recipes do i do a week ?
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Guest
Jan 3, 2020
-4
1699
11
Help meeee due tommorow. The help was false
In the right triangle, ABC, the length of side AC is 8 the length of side BC is6 and C is 90 degrees The circumcircle of triangle ABC is drawn. The angle bisector of ACB meets the circumcircle at point M
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Guest
Jan 3, 2020
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549
2
help
Find the shortest altitude of a triangle whose sides are 17, 25, and 28.
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Guest
Jan 3, 2020
0
618
1
math
The lateral area of a cone with radius 4cm is 60 cm square,
a) Determine the slant height of the cone, to the nearest centimetre.
b) Determine the height of the cone, to the nearest centimetre
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Guest
Jan 3, 2020
0
864
2
+700
converting a quadratic written in standard form, to vertex.
hello everybody,
hope you've had an awesome holiday and happy new year!
i do not understand how this problem turns into
here is the original thing:
read more ..
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Nirvana
Jan 3, 2020
0
525
1
help
The lengths of the sides of a triangle are 5,6 and 10 cm respectively. Find the square of the length of the median of the greatest side.
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Guest
Jan 3, 2020
0
2229
11
Help please due tommorow. INcredibly hard
In right triangle, ABC, the length of side AC is 8 the length of side BC is6 and C is 90 degrees The circumcircle of triangle ABC is drawn. The angle bisector of ACB meets the circumcircle at point M Find
read more ..
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Guest
Jan 3, 2020
0
363
0
help
Equilateral triangle ABC is inscribed in a circle. Point P lies on this cicle, and PB = 8. If AB = 7 and PA < PC, find the ordered pair (PA,PC).
Guest
Jan 3, 2020
+1
582
2
Help please
Suppose that is a multiple of 3 and b is a multiple of 6 Which of the following statements must be true?
A. b is a multiple of 3
B. a-b is a multiple of 3
C. a-b is a multiple of 6
D.
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Guest
Jan 3, 2020
+1
568
1
Acceleration and deceleration of a car
a. A car drives up at a speed of 20 m/s and brakes. Show that the deceleration of the car is equal to 2,0 m/s^2 and that the braking distance is 100 meters.
b. A car drives up at a speed of 254 km/h and brakes maximal. The maximal
read more ..
off-topic
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Guest
Jan 3, 2020
+1
423
1
Suppose that for some we have , . What is ?
Suppose that for some we have , . What is ?
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Guest
Jan 3, 2020
+1
392
1
help
Find all real numbers x such that
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Guest
Jan 3, 2020
+6
909
3
+382
3D Geometry
A perfect sphere is inscribed inside a right circular cone (60 degrees vertex). Find the ratio of the volume of the sphere to the cone.
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hellospeedmind
Jan 3, 2020
+1
397
1
help
At 10 minutes past noon, the hands of a clock make an angle of x degrees. After how many minutes will the hands again make an angle of x degrees?
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Guest
Jan 3, 2020
+1
460
1
Dummy books
Is finishing dummies books good preparation for calculus (E.g. algebra II, ,pre calc etc.. + calc 1 textbook)
off-topic
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Guest
Jan 3, 2020
+1
635
1
help
The function f(x) is linear. If f(2016) - f(2004) = 5, then find f(2012) - f(1184).
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Guest
Jan 3, 2020
+1
1643
3
+98
halp
Four distinct integers a, b, c and d have the property that when added in pairs, the sums 16, 19, 20, 21, 22, and 25 are obtained. What are the four integers in increasing order? (place a comma and then a space between each integer)
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Atroshus
Jan 3, 2020
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