If $x$ is positive and $y$ is negative, which of the following expressions is always positive?
4 years 9 months ago
Which of the following is an integer?
4 years 9 months ago
Conceptual Quiz
4 years 9 months ago
Equations of lines in general form directly from slopes
4 years 9 months ago
Diameter of bolts
4 years 9 months ago
The weight of stone cladding from a large shipment averages 1.5 kg with a standard deviation of 0.162 kg.
4 years 9 months ago
w3TgYte-3 Determine the elevation of the PT.
4 years 9 months ago
w3TgYte-2 Determine the elevation at Sta 6 + 820.
4 years 9 months ago
w3TgYte-1 Determine the stationing of the highest point.
4 years 9 months ago
w3TgYte-0 Situation. An unsymmetrical parabolic curve has a forward tangent of -8% and backward tangent of +5%.
4 years 9 months ago
A horn is generated by a circle which moves in the following manner:
4 years 9 months ago
A piece of wire 10 m long is cut into two pieces. One piece is bent into a square and the other is bent into equilateral triangle.
4 years 9 months ago
If P10,000 is deposited each year for 9 years, how much can a person get annually from the bank every year for 8 years starting 1 year after the 9th deposit is made. Cost of money is 14%.
4 years 9 months ago
Find the area of the region that lies inside the circle $r = 3 \sin \theta$ and outside the cardioid $r = 1 + \sin \theta$.
4 years 9 months ago
Determine the minimum value of a force F required to cause an impending motion of a 30 kg block up a 30° incline if the coefficient of friction of the block and the incline is 0.25.
4 years 9 months ago
Find the equation of the line through (4, 7) and passing at a distance of 1 unit from the origin.
4 years 9 months ago
A couple decides to entertain 24 friends by giving 4 dinners with 6 guests each. In how many ways can the 1st group be chosen?
4 years 9 months ago
An angle of a triangle is four times as large as another and 45° more than the third angle. Find the angle.
4 years 9 months ago
Car A drives East at 20 kph at half an hour earlier than car B that started at the same point at 50 kph. How long will car B overtakes car A, in minutes?
4 years 9 months ago
The arc of the parabola y = x2 from (1, 1) to (2, 4) is rotated about the y-axis. Find the area of the resulting surface.
4 years 9 months ago
The area of the triangle inscribe in a circle is 39.19 cm2 and the radius of the circle is 7.14 cm. If the two sides of the triangle are 8 cm and 10 cm respectively, find the 3rd side.
4 years 9 months ago
Which of the following most nearly gives the value of x from $ \sqrt[4]{8 \sqrt[3]{2 \sqrt{8x}}} = 2 $?
4 years 9 months ago
FgoE76U-3 Find the acceleration at t = 0.
4 years 9 months ago
FgoE76U-2 Find the velocity at t = 0.
4 years 9 months ago
FgoE76U-1 Find the position at t = 0.
4 years 9 months ago
FgoE76U-0 Situation. A particle moves along a curve of parametric equations x = e^(-t), y = 2 cos 3t, z = 2 sin 3t, where t is the time.
4 years 9 months ago
m7NbLvW-3 Find the tangent offset of the 1st quarter point on the curve.
4 years 9 months ago
m7NbLvW-2 Find the elevation of the lowest point.
4 years 9 months ago
m7NbLvW-1 Find the mid-chord elevation.
4 years 9 months ago
m7NbLvW-0 Situation. Given the following for a parabolic curve: L = 300 m; g_1 = –3.2%; g_2 = +1.8%
4 years 9 months ago
sIg3ZYd-3 What is the deflection angle of the station just before PT?
4 years 9 months ago
sIg3ZYd-2 How many stations are there in the curve?
4 years 9 months ago
sIg3ZYd-1 What is the deflection angle of the first station on the curve?
4 years 9 months ago
sIg3ZYd-0 Situation. It is required to layout a simple curve by deflection angles.
4 years 9 months ago
A man made P2,500 quarterly payment to an account earning 1.5% monthly. Find the accumulated amount after 10 years.
4 years 9 months ago
A line of levels 9.36 km is run to check the elevation of BM 2 which been found to be 31.388 meters with BM 1 of elevation at sea level.
4 years 9 months ago
Evaluate (2 \cis 20^\circ)^3
4 years 9 months ago
A radioactive substance is decaying according to the formula x = ke^(-0.2t) where x is the amount of material remaining after t years and k is the initial amount.
4 years 9 months ago
An airline does a survey of the weights of adult passengers traveling on its flights. It finds that 5% weigh more than 84.3 kg and 2% weigh less than 57.2 kg.
4 years 9 months ago
A machine poured melted chocolate into moulds. The standard deviation of the amount it pours is 0.7 grams, and the mean amount can be set on the machine.
4 years 9 months ago
X7MyoLt-3 There is 1 flaw in a piece of material which is half a meter long.
4 years 9 months ago
X7MyoLt-2 There is 1 flaw in 3-meter length.
4 years 9 months ago
X7MyoLt-1 There are no flaws in a 1-meter length.
4 years 9 months ago
X7MyoLt-0 Situation. The number of flaws in a meter length of carbon fiber material is known to follow a Poisson distribution with parameter 0.4.
4 years 9 months ago
N0f8gkh-3 Allan and Brando start at the same time.
4 years 9 months ago
N0f8gkh-2 Allan gives Brando a head start of 5 seconds.
4 years 9 months ago
N0f8gkh-1 Brando gives Allan a head start of 5 seconds.
4 years 9 months ago
N0f8gkh-0 Situation. Allan can cover a circular track in 50 seconds while Brando can cover the same track in 40 seconds.
4 years 9 months ago
If a pair of dice is tossed 6 times, what is the probability of obtaining a total of 7 or 11 twice, a matching pair once, and any other combination 3 times?
4 years 9 months ago
To encourage Elmer’s promising tennis career, his father offers him a prize if he wins (at least) two tennis sets in a row in a three-set series to be played with his father and the club champion alternately:
4 years 9 months ago