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
sladkih [1.3K]
3 years ago
12

Please answer quickly!!!!

Mathematics
1 answer:
Natalka [10]3 years ago
5 0
The volume of the rectangular prism can be found with the formula
v= length × width × height
V = 10×10×30 = 3000

the volume of the triangular prism can be found with
v = 1/2(base×width×height)
v=1/2×30×9×10 = 1/2×2700
v = 1350

Now add the two volumes together for the total volume...

3000+1350 = 4,350 in^3
You might be interested in
Use Cramer’s Rule to solve system of equation.
alisha [4.7K]

\left\{\begin{array}{ccc}5x+2y=4\\3x+4y+2z=6\\7x+3y+4z=29\end{array}\right\\\\A=\left[\begin{array}{ccc}5&2&0\\3&4&2\\7&3&4\end{array}\right]\\\\\det A=5\cdot4\cdot4+3\cdot3\cdot0+2\cdot2\cdot7-7\cdot4\cdot0-3\cdot2\cdot5-3\cdot2\cdot4=54\\W_x=\left[\begin{array}{ccc}4&2&0\\6&4&2\\29&3&4\end{array}\right]\\\det W_x=4\cdot4\cdot4+2\cdot2\cdot29+6\cdot3\cdot0-29\cdot4\cdot0-3\cdot2\cdot4-6\cdot2\cdot4=108

W_y=\left[\begin{array}{ccc}5&4&0\\3&6&2\\7&29&4\end{array}\right]\\\det W_y=5\cdot6\cdot4+3\cdot29\cdot0+4\cdot2\cdot7-7\cdot6\cdot0-29\cdot2\cdot5-3\cdot4\cdot4=-162\\W_z=\left[\begin{array}{ccc}5&2&4\\3&4&6\\7&3&29\end{array}\right]\\\det W_z=5\cdot4\cdot29+3\cdot3\cdot4+6\cdot2\cdot7-7\cdot4\cdot4-3\cdot6\cdot5-3\cdot2\cdot29=324\\\\x=\dfrac{\det W_x}{\det A}=\dfrac{108}{54}=2\\\\y=\dfrac{\det W_y}{\det A}=\dfrac{-62}{54}=-3\\\\z=\dfrac{\det W_z}{\det A}=\dfrac{324}{54}=6

5 0
3 years ago
The Sixth Grade Dance Committee is planning to decorate the school gym with crepe paper, posters, and tablecloths. They know tha
g100num [7]
5r=20 10p=100 14t=42
100+42+20=162
5r+10p+14t=$162
5 0
2 years ago
Mia bought 2 adult tickets and 4 kid's tickets. Each adult ticket cost $13.50 and each kid ticket cost $10.25. How much did Mia
Citrus2011 [14]

Answer:

Mia spent 68 dollars.

Step-by-step explanation:

The equation would be 2(13.50) + 4(10.25) = x

Solving for the first part, you get 27 for adult tickets and 41 for the children tickets. When you add the two values, you get 68.

5 0
3 years ago
Read 2 more answers
Solve for x<br> x/9=7<br><br> i need help
motikmotik

Answer:

x = 63

Step-by-step explanation:

<u>Step 1:  Solve for x by multiplying both sides by 9</u>

x/9 * 9 = 7 * 9

<em>x = 63</em>

<em />

Answer:  x = 63

4 0
3 years ago
Tax returns filed manually have a 20% chance of containing errors, while tax returns filed electronically have a 0.05% chance of
suter [353]

Answer:

B) 538, 650

Step-by-step explanation:

Given:

Errors on tax returns filed manually  = 20%

Errors on tax returns filed electronically  = 0.05%

Tax return filled in each way = 2.7 million

Manual filing:

2,700,000 x 20% = 2,700,000*0.2 = 540,000

Electronic filing:

2,700,000 x 0.05% = 2, 700,000*0.0005 = 1,350


Error difference = 540,000 - 1,350 = 538,650

There will be 538,650 more erroneous tax returns filed manually than there are filed electronically.

Thank you.

3 0
3 years ago
Read 2 more answers
Other questions:
  • A bank is offering home loans at an interest rate of 5 1/2%. Write the percent as a fraction in simplest form.
    6·2 answers
  • Solve for y 2x-5y=-12
    8·1 answer
  • | 13.1 +13<br> What is 13.1+13 in fraction form<br> What is the answer in mixed fraction
    9·1 answer
  • True or False: A variable can be used as the coefficient in a equation
    5·1 answer
  • Simplest form of 7/10 and 2/10
    11·2 answers
  • Help please i donit know the answer
    13·2 answers
  • How to do it step by step easy
    12·1 answer
  • A number cube has the numbers
    11·1 answer
  • 2. In the figure below, which pairs of angles are supplementary?
    11·1 answer
  • Find the area
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!