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
konstantin123 [22]
3 years ago
11

Could you please help me with this problem?

Mathematics
1 answer:
NeTakaya3 years ago
3 0

First Question:

Number of trapezoids - 6

Perimeter - 72

3 + 3 + 3 + 6 = <u>15</u>

3 + 3 + 3 + 3 + 6 + 6 = <u>24</u>

3 + 3 + 6 + 3 + 3 + 6 + 3 + 6 = <u>33</u>

15 + 24 + 33 = <u>72</u>

Second Question:

Number of cubes - 6

Surface area - 24 (probably 480 since it said <em>area</em>)

first cube - 6 ones

second cube - 8 ones

Third cube - 10 ones

you could do 6 + 8 + 10 = 24 or add up all the ones (1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1) and you will still get 24

(It said <em>area</em>, and area means to multiply so maybe its 6 x 8 x 10 = 480 and not 6 + 8 + 10)

Anyways have a good day/night :) I might be wrong, but I hope I helped at least a little

You might be interested in
What is the product?
grin007 [14]
(6r-1)(-8r-3)=6r(-8r-3)-1(-8r-3) \\ =-48 r^{2} -18r+8r+3 \\ =-48 r^{2} -10r+3
5 0
3 years ago
PLEASE HELP?!?!?!?!?!?!?!
Readme [11.4K]
The surface area is 72 ft.^2.
8 0
3 years ago
Laura finished her history assignment in 1/4 hours. Then she completed her English assignment in 3/5 hours. What was the total a
kobusy [5.1K]

Answer:

0.85 hours

\frac{17}{20} hours

Step-by-step explanation:

8 0
3 years ago
A selective university advertises that 96% of its bachelor’s degree graduates have, on graduation day, a professional job offer
OLEGan [10]

Answer:

The probability is  P( p <  0.9207) = 0.0012556

Step-by-step explanation:

From the question we are told

  The population proportion is p = 0.96

 The sample size is  n  =  227

 The number of graduate who had job is  k = 209

Generally given that the sample size is large enough  (i.e n >  30) then the mean of this sampling distribution is  

       \mu_x = p = 0.96

Generally the standard deviation of this sampling distribution is  

    \sigma  = \sqrt{\frac{p (1 - p )}{n} }

=>  \sigma  = \sqrt{\frac{0.96 (1 - 0.96 )}{227} }

=>  \sigma  = 0.0130

Generally the sample proportion is mathematically represented as

      \^ p =  \frac{k}{n}

=> \^ p =  \frac{209}{227}

=> \^ p =  0.9207

Generally probability of obtaining a sample proportion as low as or lower than this, if the university’s claim is true, is mathematically represented as

     P( p <  0.9207) = P( \frac{\^ p - p }{\sigma } <  \frac{0.9207 - 0.96}{0.0130 }  )

\frac{\^ p - p}{\sigma }  =  Z (The  \ standardized \  value\  of  \ \^ p )

   P( p <  0.9207) = P(Z< -3.022 )

From the z table  the area under the normal curve to the left corresponding to    -3.022  is

     P(Z< -3.022 ) = 0.0012556

=> P( p <  0.9207) = 0.0012556

6 0
3 years ago
Express the interval shown on the number line in inequality notation.
Bess [88]

Answer: x < -3 or x > 5

Step-by-step explanation: Interval notation shows the values of x. X is less than -3, or greater than 5.

6 0
3 years ago
Other questions:
  • How did the enlightenment affect peoples attitudes toward political authority
    9·2 answers
  • Angles ∝ and β are the two acute angles in a right triangle. Use the relationship between sine and cosine to find the value of ∝
    15·1 answer
  • Nilsa is working on a 60 minute math test. There are 20 questions on the test. If it takes her 20 minutes to complete 12 of the
    14·1 answer
  • ^^picture attached :)
    5·2 answers
  • ×+2=17-4×<br> × equals what
    9·2 answers
  • Slope: 5<br> Y-Intercept: 7<br> equation:
    11·1 answer
  • 8. Paris used a semicircle, a rectangle, and a right triangle to form the figure shown.
    9·1 answer
  • A student uses the ratio of 4 oranges to 6 fluid ounces to
    13·1 answer
  • Use trigonometry to solve the triangle shown. Round all side lengths to one decimal place and
    8·1 answer
  • If a student does not like mounds what is the probability that the student also does not like beach?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!