Question

math...

Answer 1

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Answer 2

Question 10 (Multiple Choice Worth 4 points)

(4.02 MC)
The diagram below shows the map of a mine.

a right triangle ABC is drawn. Angle ABC measures 90 degrees. Length of AB is 4 km. The angle the tip of the mine shaft makes with the ground above is 18 degrees.

How deep is the mine shaft?

4 by sin 18 degrees

4 by tan 18 degrees

4 tan 18°

4 cos 18°

Question 11 (Multiple Choice Worth 4 points)

(07.05 MC)

Sara is wrapping gift boxes. Each gift box is a rectangular prism with a square base of side 6 inches. The difference between the heights of the two gift boxes is 3 inches.

If the larger box has a surface area of 216 square inches, what is the difference in the surface area of the two boxes?

108 square inches

72 square inches

36 square inches

18 square inches

Question 12 (Fill-In-The-Blank Worth 4 points)

(07.01 MC)

The figure below shows CB = 4, BE = 5, AB = 4x – 4, and DB = x + 3.

Triangle ABC is a right triangle with measure of angle ACB equal to 90 degrees. The measure of side CB is 4 and AB is 4 multiplied by x minus 4. D is a point on the left of C on BC extended. A point E is labeled on AB such that DE is perpendicular to AB. Measure of EB is 5 and DB is x plus 3.

If ?ABC ~ ?DBE, the value of x is _________

Answer for Blank 1:

Question 13 (Multiple Choice Worth 4 points)

(07.01 MC)

The figure below shows AB = 4 units and BD = 6 units.

Triangle ADE has a point B on AD and a point C on AE. Segment BC is drawn parallel to side DE. AB measures 4 units and BD measures 6 units.

If the area of triangle ADE is 50 square units, what is the area of the trapezoid BCED?

40 square units

44 square units

48 square units

42 square units

Question 14 (Multiple Choice Worth 4 points)

(9.01 MC)

Read the proposition and the implication shown below.

“If the shelf door is open, the money is stolen.”

Which statement is a contrapositive to the proposition and logically equivalent to it?

If the money is not stolen, the shelf door will be closed.

If the shelf door is open, the money has not been stolen.

If the money has been stolen, the shelf door will be open.

If the shelf door is not open, the money has not been stolen.

Question 15 (Multiple Choice Worth 4 points)

(3.01 MC)
A carpenter proposes to make 4 triangular shelves of the following dimensions:

Shelf 1: 6 inches, 12 inches, 17 inches
Shelf 2: 10 inches, 14 inches, 26 inches
Shelf 3: 11 inches, 20 inches, 32 inches
Shelf 4: 8 inches, 20 inches, 23 inches

Which of the above shelf dimensions are not possible?

Shelf 2 and Shelf 3

Shelf 1 and Shelf 3

Shelf 1 and Shelf 4

Shelf 2 and Shelf 4

Question 16 (Multiple Choice Worth 4 points)

(07.01 MC) MA.912.G.2.5/ MA.912.G.2.7

William folds his origami paper along the dotted lines shown below so that the triangular flaps overlap exactly on the square.

The origami paper is shown as a square with a triangle on each of the four sides. The length of the side of the square is equal to 5 multiplied by the square root of 2 inches. The folded origami paper shows a square with each side equal to 5 multiplied by the square root of 2 inches and the diagonals of the square are drawn.
If the dimensions of the origami paper are decreased by One-half, what will be the new area of the paper?

5 square inches

20 square inches

25 square inches

10 square inches

Question 17 (Multiple Choice Worth 4 points)

(2.05 MC)
Look at the triangle KLM. O is the incenter and N is the circumcenter of the triangle.

an obtuse triangle KLM is drawn. KO bisects angle MKL. LO bisects angle KLM. Incenter is at O. A point outside the triangle is labeled N and represents the circumcenter of the triangle

Which statement is true?

The perpendicular from point N on KO bisects segment KO into two equal parts.

The perpendicular from point N on segment KL bisects KL.

Segment ON will bisect segment KL at an angle of 90 degrees.

Segment MN will bisect angle KOL.

Question 18 (Multiple Choice Worth 4 points)

(02.04 MC)

Look at the triangle PQR.

An acute triangle PQR is drawn. PS is segment from P which makes a right angle at S on RQ and QT is a perpendicular from Q to PR at T.

Which statement is true about line segments PS and QT?

PS is the median and QT is the altitude of triangle PQR.

PS and QT are medians of triangle PQR.

PS is the altitude and QT is the median of triangle PQR.

PS and QT are altitudes of triangle PQR.

Answer 3

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Answer 4

out of 400 questions on a pretest i need help with 60 so if u could help me with them i will greatly appreciate it and will award u 4 medals and a fave

Answer 5

60 questions? Well... start with the first one, I suppose.

Answer 6

yesss finally someone will help me also im starting with this one cuz out of the 60 i already did a few so a lil less than 60

Answer 7

soooo r u working it out orrrr

Answer 8

.......

Answer 9

For

> (07.05 MC)

> Sara is wrapping gift boxes. Each gift box is a rectangular prism with a square base of side 6 inches. The difference between the heights of the two gift boxes is 3 inches.

> If the larger box has a surface area of 216 square inches, what is the difference in the surface area of the two boxes?

Try drawing it out:




The surface area of the smaller box is:
\[\large A = 6\cdot6 + 6\cdot6 + 4\cdot6h\]

We know that the surface area of the larger box is:
\[\large 216 = 6\cdot6 + 6\cdot6 + 4\cdot6(h+3)\]

Solve for \(h\) in the second equation and substitute that value into the first equation.

Finally, we have:
\[\large \textrm{answer} = 216 - A\]


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It's better if you ask these questions separately in different questions so people aren't overwhelmed.

Answer 10

Don't miss what I said:

> It's better if you ask these questions separately in different questions so people aren't overwhelmed.

I'm not going to help anymore with any of the other questions here. For each question you need help with, ask a separate question.

If you need any more help with box problem, just ask.