1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Debora [2.8K]
4 years ago
12

The figure below is a rectangular box in which EFGH and ABCD are rectangles and BF is perpendicular to planes EFGH and ABCD. Use

the figure to complete parys a through e.

Mathematics
1 answer:
vladimir1956 [14]4 years ago
4 0

Answer:

Step-by-step explanation:

Given question is incomplete: Find the compete question in the attachment.

a). Skew lines neither the parallel lines nor they intersect each other.

Two pairs of skew lines are BF and EH, & CG and EF.

b). Since EFGH and ABCD are rectangular planes and BF and DH are perpendicular to them,so both will be the altitudes between the planes.

Therefore, BF and DH will pe parallel.

c). BD and DH are the diagonals of the planes parallel to each other.

Therefore, BD and DH will be parallel.

d). Since BD and plane EFG don't intersect each other, so the solution will be an empty set.

e). HG is perpendicular to DH. So,the planes BDH and FHG containing these lines will be perpendicular to each other.

You might be interested in
1. Jasmine enlarged a drawing she made in art class.
trapecia [35]

Answer:

40

Step-by-step explanation:

60/3.75=x/2.5

4 0
3 years ago
Use scalar multiplication to determine the coordinates of the vertices of the dilated figure. Then graph the pre-image and the i
Luba_88 [7]

Answer:

The coordinates of the vertices of the dilated figure are:

A' is (-2 , 4), B' is (4 , 8), C' is (4 , -2), D' is (-2 , -6) ⇒ the answer is (d)

Step-by-step explanation:

* Lets study the matrix of the dilation

- If we dilate any point by scale factor k we  multiply the

 coordinates of the point by k

- The matrix of the dilation by scale factor k is

 \left[\begin{array}{ccc}k&0\\0&k\end{array}\right]

* Now lets solve the problem

- We will multiply the matrix of dilation by the matrix of the

  vertices of the quadrilateral

- The dimension of the matrix of the dilation is 2×2 and the

  dimension of the matrix of the vertices of the quadrilateral

  is 2×4 then the dimension of the matrix of the image of the

  quadrilateral is 2×4

∵ The scale factor is 2

∴ The matrix of dilation is \left[\begin{array}{cc}2&0\\0&2\end{array}\right]

∵ The matrix of the vertices of the quadrilateral is

  \left[\begin{array}{cccc}-1&2&2&-1\\2&4&-1&-3\end{array}\right]

∴ The image of the quadrilateral is :

  \left[\begin{array}{cc}2&0\\0&2\end{array}\right]\left[\begin{array}{cccc}-1&2&2&-1\\2&4&-1&-3\end{array}\right]=

  \left[\begin{array}{cccc}(2)(-1)+(0)(2)&(2)(2)+(0)(4)&(2)(2)+(0)(-1)&(2)(-1)+(0)(-3)\\(0)(-1)+(2)(2)&(0)(2)+(2)(4)&(0)(2)+(2)(-1)&(0)(-1)+(2)(-3)\end{array}\right]=

 \left[\begin{array}{cccc}-2&4&4&-2\\4&8&-2&-6\end{array}\right]

∴ The image of point A' is (-2 , 4)

∴ The image of point B' is (4 , 8)

∴ The image of point C' is (4 , -2)

∴ The image of point D' is (-2 , -6)

* The right answer is figure (d)

3 0
3 years ago
Evaluate the variable expression when a = 5, b = 5, and c = -4.<br> Bc divided by (2a)
zlopas [31]

Answer:

-2

Step-by-step explanation:

Bc÷2a

5×-4÷2×5

-20÷10

-2

6 0
4 years ago
Read 2 more answers
Which equation are true for x=-2 and x=2 check all that apply
ki77a [65]
1 it is true
{x}^{2} - 4 = 0 \\ {x}^{2} = + 4 \\ x = \sqrt{4} = 2
2 it's not true
{x}^{2} = - 4
3 it's not true
3 {x}^{2} + 12 = 0 \\ 3 {x}^{2} = - 12 \\ {x}^{2} = \frac{ - 12}{3} = - 4 \\
4 it's true
4 {x}^{2} = 16 \\ {x}^{2} = \frac{16}{4} = 4 \\ x = \sqrt{4} = 2
5- it's true
{2(x - 2)}^{2} = 0 \\ {(x - 2)}^{2} = 0 \\ x - 2 = 0 \\ x = 2
4 0
4 years ago
Read 2 more answers
Consider the graph shown. Which of the following does not represent the rate of change found when using similar triangles? Selec
Wewaii [24]

Answer:

the rate of change is -4/6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • A man spent 15/16 of his entire fortune in buying a car $7500. How much money did he possess?
    7·2 answers
  • Can someone please help me with my homework
    15·1 answer
  • What is the balance on an amortized loan of $110,000 after the first payment if the interest rate is 5.5% with a monthly P&amp;I
    7·1 answer
  • If a polynomial has only one real non-repeated root, what can you say about the order of the polynomial? Justify your answer in
    12·1 answer
  • The period of this function is <br><br><br><br> 2π<br><br> π/8<br><br> π/4<br><br> π/2
    10·2 answers
  • Solve the equation<br> 8/x + 3 = 1/x + 1
    9·1 answer
  • Name three ratios that are equivalent to 5:2
    12·2 answers
  • Solve x/-11 = 5 I need help plz​
    13·2 answers
  • What is the value of the expression below?<br><br> −20÷5
    15·2 answers
  • 6 2/7 * 3 3/12= ? Anyways hi! I'm bo.red lol
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!