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
mojhsa [17]
3 years ago
13

The book fair is this week, and there's a special deal for teachers. For every 5 hardcover

Mathematics
1 answer:
zhuklara [117]3 years ago
6 0

Answer:14

Step-by-step explanation:

You might be interested in
A rectangular pyramid has a height of 8 meters. The base is 7 meters in length and 15 meters in width two different triangular c
vagabundo [1.1K]

Answer:

The difference in the areas of the cross section is 32 m²

Step-by-step explanation:

The given parameters are;

The height of the rectangular pyramid = 8 meters

The length of the base of the pyramid = 7 meters

The width of the base of the pyramid = 15 meters

Whereby triangular cross sections are formed through the vertex and perpendicular to the base, and to each other, we have;

The sides of the two triangles consists of the following;

1) Two slant height of the pyramid each

2) The two perpendicular lines joining the midpoints of the opposite sides of the base of the pyramid with length equal to the length of the adjacent side to the sides from which they are drawn which are 15 meters and 7 meters

3) The two lines and the corresponding slant height form triangles cross section which are perpendicular to each other.

the slant height, h_l, is given as follows;

h_l = √(8² + (15/2)²) ≈ 10.966

For the triangular cross section with base = 15 m

The area of the cross section = 1/2 × Base₁₅ × Height = 1/2 × 15 m × 8 m = 60 m²

For the triangular cross section with base = 7 m

The area of the cross section = 1/2 × Base₇ × Height = 1/2 × 7 m × 8 m = 28 m²

The difference in the areas of the cross section = 60 m² - 28 m² = 32 m².

5 0
3 years ago
Can you please help me if you want I would give you brain list thanks have a good day!:)
olya-2409 [2.1K]

Answer:

the answer should maybe be -5, -4,-3

Step-by-step explanation:

either its being buggy or it wants you to put the numbers in a different way

8 0
3 years ago
Read 2 more answers
(x -1) = 26 = -4x <br> A. -7 5/7<br> B. 8<br> C. -7<br> D. -5
Volgvan
Based on the answer choices, we suspect you intend
.. (x -1) +26 = -4x

This simplifies to
.. x +25 = -4x
.. 25 = -5x . . . . . subtract x
.. -5 = x . . . . . . . divide by the coefficient of x

Selection D appears to be appropriate for the question we think you asked.
4 0
3 years ago
280 m
Marianna [84]

Answer: C. 1,183m

Step-by-step explanation:

6 0
2 years ago
For each one tell me if the graph is a function
klemol [59]

Answer:

Graph 1: not a function

Graph 2: is a function

Graph 3: is a function

Step-by-step explanation:

Use the vertical line test. Draw a straight line anywhere on your graph. if it passes over 2 points or more on your graph then it's not a function

6 0
3 years ago
Other questions:
  • A plane flies over city A and reaches city B, 115 miles away, in 15 minutes. Find the speed of the plane in miles per hour assum
    7·1 answer
  • A LOT OF POINTSSSSSSSSSS!!!!!! PLS TELL ME THE CORRECT ANSWER AND WHY IT IS THE CORRECT ANSWER ( STEP BY STEP) WILL MARK THE BRA
    15·1 answer
  • Consist of even number between 30 and 49
    14·1 answer
  • Which ratios form a proportion?​
    10·2 answers
  • AN algebraic expression for -8 subtracted from -x is
    7·2 answers
  • What are the coordinates of each point after quadrilateral ABCD is rotated 270° about the origin? Select numbers from the pull-d
    5·1 answer
  • A cylinder has a height of 10 inches and a radius of 5.5 inches. What is the
    5·1 answer
  • In a warehouse, boxes have been stacked in 4 layers as shown. The workers make other stacks according to the same pattern. If a
    6·1 answer
  • Guía metodológica esmate octavo grado resuelta unidad 4 de el libro de texto ​
    14·1 answer
  • 1 What is the absolute value of 0?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!