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
ehidna [41]
3 years ago
14

Unit 2 Lesson 2:Surface Area

Mathematics
1 answer:
seropon [69]3 years ago
6 0
Part 2) <span>What is the surface area of this cube?
we know that
surface area of a cube=6*b</span>²
where b is the length side of a cube
in this problem
b=15 mm
so
surface area of a cube=6*15²----> 1350 mm²

the answer Part 2) is 1350 mm²

Part 3)  What is the surface area of this cube?
we know that
surface area of a cube=6*b²
where b is the length side of a cube
in this problem
b=11 cm
so
surface area of a cube=6*11²----> 726 cm²

the answer Part 3) is 726 cm²

part 4) <span>What is the surface area of the rectangular prism represented by the net?

surface area=2*16*6+2*16*8+2*6*8----> 544 cm</span>²

the answer Part 4) is 544 cm²

Part 5) <span>What is the surface area of the wood block?
surface area=5*5+4*[5*8]/2----> 25+80----> 105 in</span>²

the answer part 5) is 105 in²
You might be interested in
How would you write 5,392,029,004 in word form
blondinia [14]
Five billion three hundred and ninety two million twenty nine thousand four
4 0
3 years ago
Fifty specimens of a new computer chip were tested for speed in a certain application, along with 50 specimens of chips with the
Murljashka [212]

Answer:

Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips

Step-by-step explanation:

H_{0}: Mean speed of the new chip is the same as the old chip

H_{a}: Mean speed of the new chip is greater than the old chip

to calculate the z-statistic we can use the formula:

z=\frac{M_{n}-M_{o}}{\sqrt{\frac{s_{n}^2}{N_{n}} +\frac{s_{o}^2}{N_{o}} } }

if we put the numbers then

z=\frac{495.6-481.2}{\sqrt{\frac{19.4^2}{65}} +\frac{14.3^2}{65} } } =4.8171

The probability of this z-statistic is < 0.001 Therefore Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips

4 0
3 years ago
We started with two and a half ounces of a perfume mix that was 96% alcohol. We added half an ounce of a preservative, and ended
Olenka [21]

Answer:

84%

Step-by-step explanation:

5 0
4 years ago
HELPP!! MY QUIZ IS TIMED!!
Lana71 [14]

Answer:

it is dependent . When you graph the equations, both equations represent the same line. If a system has no solution, it is said to be inconsistent . The graphs of the lines do not intersect, so the graphs are parallel and there is no solution.

Step-by-step explanation:

8 0
3 years ago
Solve the inequality.
nataly862011 [7]

Answer:

D

Step-by-step explanation:

4x + 3 < 3x + 6 ( subtract 3x from both sides )

x + 3 < 6 ( subtract 3 from both sides )

x < 3 → D

5 0
3 years ago
Read 2 more answers
Other questions:
  • Farmer brown had ducks and cows. One day she noticed that the animals had a total of 14 heads and 40 feet. How many of the anima
    13·1 answer
  • Help me with the homework
    15·2 answers
  • What is the quotient of 5^-6/5^3
    13·1 answer
  • samantha drew a cube and the formula for the surface area of a cube is SA=6s to the second power,where s is one side of the cube
    7·1 answer
  • Help!!!!
    12·2 answers
  • The volume of a right rectangular prism is 573.3 cm³. The length of the right rectangular prism is 7.35 cm and the height is 16.
    13·1 answer
  • The 68–95–99.7 rule tells us how to find the middle 68%, 95% or 99.7% of a normal distribution. Suppose we wanted to find number
    13·1 answer
  • Enter three different expressions that are equivalent to, but not exactly the same as 1/4 + 5/4​
    9·1 answer
  • How do I solve this problem
    8·1 answer
  • Malik collects rare stamps that has a total of 212 stamps he has 34 more domestic stance and foreign stamps let X represent the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!