I need to pass my finals tomorrow! pleas help me! its geometry?

Does anyone know how to do any of these problems ?
please help!

1- 3, 5, 7, 9...

Generalize the pattern by finding the nth term.

A) 3n
B) 2n + 1
C) n + 2
D) (n + 1)(n + 2)

2- If the radius of a cylinder is doubled and the height is tripled, what happens to the volume?

A)It is multiplied by 6.
B) It is multiplied by 12.
C) It is multiplied by 18.
D) It is multiplied by 64.

3- A person walking down the street notices their shadow in front of them. If the angle of elevation from the tip of their shadow to the sun is 60° and the length of their shadow is 5 feet, what is the distance from the top of their head to the tip of their shadow (round to 2 decimal places)?

A) 3.89 feet
B) 5.77 feet
C) 10.00 feet
D) 17.18 feet

4-A group of cubes are arranged in a pattern with the same number of cubes in each row and column. There are 225 cubes in the shape. How many cubes are in one row?

A) 15
B) 25
C) 56
D) 75

5-The exterior angles of a triangle measure x + 3, 2x + 1, and 3x - 4. Find the measure of each angle.

A) 23°, 41°, and 56°
B) 33°, 61°, and 86°
C) 63°, 121°, and 176°
D) 93°, 181°, and 266°

6- x2 = 16, therefore x = 4. Is this a valid conclusion? If no, give a counterexample.

A) YES
B) NO; x = 8
C) NO; x could be -4
D) NO; x = -8

7- A diver stands on level ground 50 feet from the base of the 12 foot high dive. What is the approximate measure of the angle of elevation between the diver and the diving board (round to the nearest whole number)?

A) 12°
B) 13°
C) 14°
D) 15°

8- How do the volume formulas for right prisms and pyramids differ?

A) They are the exact same.
B)The volume of a prism is 1/3 the volume of a pyramid.
C) The volune of a prism is 3 times the volume of a pyramid.
D) For a prism you multiply the area of the base by the height, but for a pyramid you multiply the area of the base by the slant height.

9-On a test Sally has a right prism with a base area of 13 cm2 and a height of 12 cm. She also has a pyramid with a base area of 15 cm2 and a height of 10 cm. Which figure has the larger volume and by how much?
A) The pyramid by 4 cubic units.

B) The pyramid by 106 cubic units.

C) The right prism by 4 cubic units.

D) The right prism by 106 cubic units.

10-Which type of transformation does NOT result in a figure that is congruent to the original one?
A) Dilation

B) Reflection

C) Rotation

D) Translation

No wonder you're having problems with this test. You don't even know the name of the subject.

Sure! I'll explain how to solve each of the geometry problems, and then I'll give you the answer choices for you to select.

1- To find the nth term of the pattern 3, 5, 7, 9..., you can observe that each term is 2 more than the previous term. So the pattern can be generalized as "2n + 1." The correct answer is B) 2n + 1.

2- When the radius of a cylinder is doubled and the height is tripled, the volume is calculated by multiplying the original volume by the scale factor. In this case, the scale factor is 2 (2 for the radius and 3 for the height), so the volume is multiplied by 2 * 3 = 6. The correct answer is A) It is multiplied by 6.

3- To find the distance from the top of the person's head to the tip of their shadow, you can use the tangent function. In this case, you have the length of the shadow and the angle of elevation. Using the formula tan(angle) = opposite/adjacent, you can solve for the opposite side, which is the height from the top of the person's head to the tip of their shadow. The correct answer is B) 5.77 feet.

4- To find the number of cubes in one row, you need to find the square root of the total number of cubes. Since there are 225 cubes, the square root of 225 is 15. The correct answer is A) 15.

5- The sum of the exterior angles of a triangle is always 360 degrees. To find the measure of each exterior angle, you can set up the equation: (x + 3) + (2x + 1) + (3x - 4) = 360. Solving this equation, you get x = 33. So the angles are x + 3 = 36°, 2x + 1 = 67°, and 3x - 4 = 95°. The correct answer is B) 33°, 61°, and 86°.

6- The given conclusion is valid because the square root of 16 is indeed 4. Therefore, the answer is A) YES.

7- To find the angle of elevation, you can use the tangent function. In this case, the opposite side is the height of the dive (12 feet) and the adjacent side is the distance between the diver and the base of the dive (50 feet). Using the tangent function, the angle of elevation is approximately 14 degrees. The correct answer is C) 14°.

8- The volume formulas for right prisms and pyramids differ. For a right prism, the volume is found by multiplying the area of the base by the height. But for a pyramid, you multiply the area of the base by one-third of the height. So the correct answer is B) The volume of a prism is 1/3 the volume of a pyramid.

9- To compare the volumes of the prism and the pyramid, you need to calculate their respective volumes using the given base areas and heights. The volume of a prism is found by multiplying the base area by the height, while the volume of a pyramid is found by multiplying the base area by one-third of the height. After calculating both volumes, you will find that the pyramid's volume is larger by 106 cubic units. The correct answer is B) The pyramid by 106 cubic units.

10- Transformations such as reflection, rotation, and translation result in figures that are congruent to the original one. However, dilation changes the size of the figure and does not result in congruence. So the correct answer is A) Dilation.

I hope this helps you with your geometry finals! Let me know if you have any more questions.