Thursday
May 23, 2013

# Posts by hanna

Total # Posts: 108

Math
List the terms without changing the expression. 21x+21y

Geometry
Tangent of Angle=11/100 Angle = Inverse of Tangent (11/100) Angle =Tan-1 (.11) Angle = 6.2, Rounded to 6 Degrees.

Geometry
To the nearest degree, what angle does a hill with a grade of 11% make with a horizontal line?

Geometry
Tangent= Opposite/Hypotenuse Tan 9/15=30.96 (This is the Smallest Angle) Check: 90(This is the Right angle)+30.96=120.9 180-120.9=59.1(This is the third angle.) 9/sin 30.96 = 15/sin 59.1. This Does Work. So the Smallest Angle is 30.9 Degrees, rounded to 31.

Geometry
To the nearest degree, what is the measure of the smallest angle of a right triangle whose legs measure 9 and 15?

math
A triangular pyramid has a triangle base of 24 cm, triangle height of 16 cm, and a pyramid height of 14 cm. what is the volume of triangular prism.

math
7/10

Physics
A particle is initially moving along the positive x-axis at a speed of 9.90 m/s. After 2.40 s, the particle is moving along the negative y-axis at a speed of 4.71 m/s. Find the x and y components of the particle's acceleration.

calculus
The point on the curve for y = sqrt(2x+1) at which tangent is perpendicular to the line y = -3x + 6 is.... a. (4, 3) b. (0,1) c. (1, sqrt3) d. (4, -3) e. (2, sqrt 5) I'm not sure, but do you find the perpendicular slope (1/3) set that as dy/dx and solve for x or y? I tried...

geometry
quadrilateral ABCD has right angles at B and D. If ABCD is kite-shaped with AB=AD=20 and BC=CD=15, find the radius of the circle inscribed in ABCD.

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