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
Veseljchak [2.6K]
3 years ago
15

Cassandra calculated the total volume of the figure below. A rectangular prism has a length of 7 inches, width of 6 inches, and

height of 7 inches. A rectangular pyramid has a base of 6 inches by 7 inches and a height of 3 inches. Total volume = V of prism – V of pyramid       = Bh - Bh       = (7)(6) (7) – (7)(6)(3)       = 294 – 126       = 168 square inches What mistakes did Cassandra make? Check all that apply. She used square units instead of cubic units. In calculating the volume of the pyramid, she did not multiply by 1/3. She incorrectly identified the shapes composing the total figure. She subtracted the pyramid volume instead of adding it. She should have multiplied the dimensions of the prism by 1/3.
Mathematics
2 answers:
olga2289 [7]3 years ago
6 0
<h2><u><em>- She used square units instead of cubic units.</em></u></h2><h2><u><em>- In calculating the volume of the pyramid, she did not multiply by 1/3.</em></u></h2><h2><u><em>- She subtracted the pyramid volume instead of adding it.</em></u></h2>
RideAnS [48]3 years ago
4 0

Answer:

1,2,4

Step-by-step explanation:

You might be interested in
The three sides of a triangle are n, 3n + 5, and 4n − 9. If the perimeter of the triangle is 68 feet, what is the length of each
MissTica
4n - 9 + 3n + 5 + n = 68

combine like terms

8n - 4 = 68

addition property of equations

8n = 72

division property of equality

n = 9

SIDES:

n = 9

3n + 5 = 32

[ 3(9) + 5 = 32 ]

4n - 9 = 27

[ 4(9) - 9 = 27 ]
5 0
3 years ago
Help plz show work plz
Feliz [49]

Answer:   c) 286.5 in²

<u>Step-by-step explanation:</u>

S.A.= 2π r · h

      = 2π (7.3/2) · 12.5

      = 2π (3.65) (12.5)

      = 286.5

6 0
3 years ago
For problems 3 and 4, find the missing side of the triangle. Leave answers in simplest radical form.
maria [59]

Answer: 3. 4\sqrt{13}            4. \sqrt{225}    

Step-by-step explanation:

8^2 + 12^3 = c^2

64 + 144 = c^2

208 = c^2

√208

4\sqrt{13}

The final answer is the square root of 208

8^2 + b^2 = 17^2

64 + b^2 = 289

-64               64

   b^2 = 225

\sqrt{225}

 

7 0
3 years ago
Matthew is a salesman and earns commission on merchandise he sells. Last week he sold $7000 in merchandise. How much money does
MariettaO [177]

Answer:

I think the commission amount is $210

5 0
3 years ago
Read 2 more answers
What are the coordinates (x, y) at which the graphs of 2x + 3y = 12 and 2x - y = 4 intersect?
yaroslaw [1]
2x + 3y = 12
2x - y = 4
4y = 8
y = 2

2x - 2 = 4
2x = 6
x = 3

The coordinates are (3,2) and that is your answer :)
6 0
3 years ago
Other questions:
  • Josh wanted to buy a new shirt for a school dance. At the store, he couldn't decide between a purple plaid shirt and a scarlet s
    10·1 answer
  • Helpppppp plzzzzzzz
    15·1 answer
  • Which graph below shows the solution for the linear inequality y&gt;-1/3x+1
    12·1 answer
  • In 1928, when the high jump was first introduced as a women's sport at the Olympic Games, the winning jump for women was 70.0 in
    9·2 answers
  • Your family is traveling to Mexico on vacation. You have
    15·2 answers
  • Five individuals from an animal population thought to be near extinction in a certain region have been caught, tagged, and relea
    15·1 answer
  • Please help
    8·1 answer
  • -3(8n+10) <br> distributive property
    5·2 answers
  • Help! (3 3/4)÷(−2 1/2)=
    7·1 answer
  • Find the surface area of the composite figure.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!