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Questions Asked on June 10, 2018

Find the exact value of the expression.cos(π/16)cos(3π/16) − sin(π/16) sin(3π/16)
1. 0 answers
2. asked by Stella
3. 609 views
A wire of 5.0m and diameter 2.0mm,extends by 0.25mm when a force of 50N was stretch it from it's end calculatea.the stress on
1. 4 answers
2. asked by Testimony
3. 3,899 views
The following table of values compares national test scores to high school GPA at a certain school.National Test Score HS GPA
1. 3 answers
2. asked by John
3. 1,391 views
What is the value of tan (Arc cos 15 seventeenths)?1. 8/15 2. 8/17 3. 15/8 4. 17/8 Can you guys explain what the Arc means?
1. 1 answer
2. asked by Anon
3. 868 views
what is the general trend of the critical angle as the refractive index increases?
1. 1 answer
2. asked by T
3. 906 views
Find the exact value of each trigonometric function.sin(θ)= 3/5 cos(θ)= 4/5 tan(θ)= 3/4 1. cos(2θ)= 2. tan(2θ)= 3.
1. 2 answers
2. asked by Stacy
3. 826 views
if vector U= (1,-3,-2) and vector V= (4,-5,3) find | u+v-5j |
1. 2 answers
2. asked by kat
3. 370 views
Use the Law of Sines to solve the triangle. (Round your answers to two decimal places.)A = 76°, a = 38, b = 29 B = C = c =
1. 1 answer
2. asked by Stacy
3. 855 views
Solve the system.{x^2 + y^2 = 85 {3x + y = 15
1. 1 answer
2. asked by Gray
3. 575 views
A rocket is shot into the air and follows a parabolic path given by h = -4.9t^2 + 58.8t + 8.6 where h is the height of the
1. 1 answer
2. asked by Ana
3. 1,010 views
Use the fundamental identities to simplify the expression.cos(x)(1 + tan2(x))
1. 0 answers
2. asked by Stella
3. 552 views
Write the expression as the sine, cosine, or tangent of an angle.sin(2π/9)cos(3π/8)+cos(2π/9)sin(3π/8)
1. 2 answers
2. asked by Stella
3. 592 views
A ship is travelling with a velocity (30i- 42j), and a trolley is being pushed relative to the ship with the velocity (-5i- 6j).
1. 0 answers
2. asked by emily
3. 533 views
1. He runs 50 meters in 9 seconds.2. He runs 50 meters durng 9 seconds. [Can we use #2?] 3. He finished the project in 5 days.
1. 1 answer
2. asked by rfvv
3. 463 views
a plane is steering at S83degE at an air speed of 550 km/h. The wind is from N70degE at 85 km/h. Find the ground velocity of the
1. 1 answer
2. asked by carol
3. 1,209 views
if spring 20cm is stretch to 25cm by a load of son, what will be its length when stretched by 100N assuming that the elastic
1. 2 answers
2. asked by blessing
3. 515 views
the mass of an empty container is measured and found to be 55.75g. the container is filled to thee rim with water. its mass is
1. 3 answers
2. asked by help
3. 3,773 views
A space vehicle travelling at a velocity of 6000km/h separates into two parts of mass 1200 kg and 300 kg. The two parts continue
1. 1 answer
2. asked by Robert
3. 580 views
What do Direct duties mean for Immanual Kant?
1. 1 answer
2. asked by Anonymous
3. 539 views
A sample of 1.55g of iron ore is dissolved in a acid solution in which the iron is converted into Fe2+. The solution formed is
1. 5 answers
2. asked by Hidayah
3. 6,211 views
When is the Mid-point rule is the worsted possible option for estimating area ( Riemann sum )?
1. 0 answers
2. asked by 4hand
3. 344 views
I want to know the drawbacks of Rutherford alpha particles scattering experiment of electron losing it's energy?
1. 1 answer
2. asked by Meri
3. 437 views
A coil of inductance 0.04henry and negligible resistance is connected in parallel with a 10ohms resistor, across a 240volts
1. 1 answer
2. asked by Vincent
3. 619 views
A user is charged php300 monthly for a particular mobile plan, which includes 100 free text messages. Messages in excess of 100
1. 2 answers
2. asked by Math
3. 4,138 views
A sector of a circle of radius 8cm is bent to form a cone. Find the radius of the cone and it's vertical angle if the angle
1. 2 answers
2. asked by Amarachi
3. 1,883 views
A racing car of mass 850 kg accelerates from 20 km/h to 160 km/h over a distance of 300 metres. Frictional forces and wind
1. 1 answer
2. asked by Robert
3. 720 views
A sample of dry air at 28 degress celcius in a sealed flask has a pressure of 90kPa. Which is the most likely the partial
1. 2 answers
2. asked by Anonymous
3. 685 views
if x=1/7+4 root 3 and y=1/7-4 root 3, then find the value of x2+ y2
1. 1 answer
2. asked by kumal
3. 414 views
A hunter wishes to cross a river that is 1.6 km wide and flows with a speed of 5.0 km/h parallel to its banks. The hunter uses a
1. 1 answer
2. asked by Kevin
3. 525 views
6.00 g of hemoglobin was dissolved in 250.0 mL of solution. The resulting osmotic pressure was 6.80 mmHg at 23.0C. what is the
1. 2 answers
2. asked by libby
3. 1,193 views
6x-2=0find the value of x. How would you work this out?
1. 1 answer
2. asked by Natasha
3. 337 views
A biased coin lands heads with probabilty 2/3. The coin is tossed 3 timesa) Given that there was at least one head in the three
1. 1 answer
2. asked by Steve
3. 1,449 views
I really dont get why there are two NQ and 2 CA. can someone explain1) Find the value of the variable and MN if N is between M
1. 2 answers
2. asked by need help
3. 609 views
Statuary Hall is an elliptical room in the United States Capitol Building in Washington, D.C. The room is also referred to as
1. 3 answers
2. asked by Lucy
3. 1,848 views

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