07/28/14

#### Find the change in the average value

after removing 99 from the following list of numbers: 45, 60, 89, 115, 120, 99, 103, 130, 5, 101, 69, 75, 98, 107.

07/27/14

#### What is the probability that a value selected at random from this data is in the interval from 44 to 50?

A normal distribution has a mean of 50 and a standard deviation of 6.

07/27/14

#### which of the following values is not contained within 68% of the bell-shaped curve about the mean?

If the standard deviation of a set of values is 6.7 and the average value is 201.2. Choices are ;   203.5 208.0 194.7 198.2

07/27/14

#### how many of the loaves (rounded to the nearest loaf) had less than 8.8 g of wheat grains?

A local bakery makes wheat bread. The number of grains of wheat in the bread is normally distributed, with mean 11.4 g and standard deviaton 1.3 g. This bakery sells 100 loaves of bread.

07/27/14

#### What percentage of values do we expect to find with 2 standard deviations of the mean?

Choices are ;   95% 99.5% 100% 65%

07/27/14

#### Which of the following values is unusual?

The mean of a distribution is 20 and the standard deviation is 5. 30 25 7 11   I don't understand how to find the answer.

07/25/14

#### What is the distance between the points on the ground at which the two ropes are anchored?

A hot-air balloon is held at a constant altitude by two ropes that are anchored on the ground. One rope is 120 ft long and makes an angle of 65° with the ground. The other rope is 115 ft long.

07/25/14

#### how far is it from the bottom of the tent pole to the point where the wire is fastened to the ground?

A 50-ft wire running from the top of a tent pole to the ground makes an angle of 58° with the ground. The length of the tent pole is 44 ft

07/23/14

#### Use the Law of Cosines to find the specified missing value, find c

If C = 60°, a = 120 in, b = 66 in

07/23/14

#### Use the Law of Sines to solve each triangle with the given measures.

A = 38°, a = 41 in, b = 54 in

07/22/14

#### Use the Law of Cosines to find the specified missing value.find C

B = 116°, a = 4.2 ft, c = 6.8 ft,

07/22/14

#### find C1 and C2

A = 30°, a = 1.5 m, b = 2 m

07/22/14

#### Use the Law of Sines to solve the following triangle.

c = 10.2 in, A = 45.1° B = 75.8°

07/21/14

#### Use the Law of Cosines to find the specified missing value.find B.

If A = 60°, b = 20 ft, c = 30 ft,

07/21/14

#### Use the Law of Cosines to solve each triangle with the given measures.

a = 4.38 ft, b = 3.79 ft, c = 5.22 ft

07/20/14

#### Use the Law of Sines to solve (if possible) the triangle for the value of c.

A = 27.5°, a = 15.0 cm, b = 36.4 cm

07/20/14

#### find C1 and C2.

The information in the following problem allows you to construct 2 triangles.  B = 40°, a = 2.2m, b = 1.7m.

07/20/14

#### Use the Law of Sines to solve (if possible) the triangle for the value of c.

A = 18.92°, a = 48.35 yd, b = 105 yd

07/20/14

#### Determine the exact values of the six trigonometric functions of the angle.

Assume the point (-2, 10) is on the terminal side of an angle in standard position.

07/20/14

#### Determine the exact values of sin? of the angle. (-8,-20)

Assume the given point is on the terminal side of an angle in standard position. Determine the exact values of sinθ of the angle. (-8,-20)

07/17/14

#### find tan ?

if cos theta = -2 / sqrt 13 and sin theta = -3 / sqrt 13

07/17/14

#### find sec ?.

If tan θ = -2 and sin θ < 0,

07/17/14

#### How tall is the tree?

The horizontal shadow of a vertical tree is 23.4 m long when the angle of elevation of the sun is 56.3°

07/17/14

#### find cot theta

if cos theta = 2/3 and tan theta < 0

07/15/14

#### find tan theta

If cot theta = 2/3 and csc theta > 0

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