# Algebra 2....

posted by .

1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth.

a=4.2 cm b= 5.7 cm measure angle A= 39 degrees

2. What angle in the first quadrant could you reference to help you find the sine and cosine of each of the following angles?
a. 330 degrees
b. 120 degrees
c. 113 degrees
d. 203 degrees

3. Solve for x.
(3/x+1)+4/x=2

**I need help especially on this.4. Sketch a unit circle. In your circle, sketch in an angle that has:

a. A positive cosine and a negative sine.
b. A sine of -1.
c. A negative cosine and a negative sine.
d. A cosine of about -0.9 and a sine of about 0.4.
e. Could an angle have a sine equal to 0.9 and cosine equal to 0.8? Give an example angle or explain why not?

## Similar Questions

1. ### math-triangles

finding the hypotenuse for triangles with only one measure of 7.8 m and two angles with degrees of 90 and 40. The picture is a right triangle with the right angle on the bottom left(labeled S). The hypotenuse goes from the top left(making …
2. ### math

how can you estimate heights and distances you can't easily measure with rulers or tape measures by using the following methods?
3. ### math

how can you estimate heights and distances you can't easily measure with rulers or tape measures by using the following methods?
4. ### math

how can you estimate heights and distances you can't easily measure with rulers or tape measures by using the following methods?
5. ### Pre-Calculus

Determine the number of triangles that can be formed with the given information. and if it forms two possible triangles solve all unknown angles and sides Angle A=116 degrees a=10 b=11
6. ### Pre-Calculus follow up question Reiny

Determine the number of triangles that can be formed with the given information. and if it forms two possible triangles solve all unknown angles and sides Angle A=116 degrees a=10 b=11 but if you add 81.4 (measure of angle B) plus …
7. ### Algebra 2 ..

1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39 …
8. ### Algebra2---

1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39 …
9. ### Math

Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure …
10. ### Math

Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure …

More Similar Questions