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inessss [21]
4 years ago
8

Calculate the area of parallelogram. ​

Mathematics
2 answers:
Nesterboy [21]4 years ago
8 0

Answer:

84. What you did is right.

Step-by-step explanation:

A parallellogram's area is b x h. So the equation is 7 x 12=84.

andrew-mc [135]4 years ago
6 0

Answer:

the answer is 61

Step-by-step explanation:

if you multiply 12x2 it is 24, 11.5x2 is 23, 7x2 is 14 add that all together and the answer is 61.

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An octagonal pyramid ... how many faces are there, how many vertices and how many edges? A triangular prism ... how many faces a
ahrayia [7]

1: 8 faces and 9 with the base 9 vertices and 16 edges

2: 3 faces and 5 with the bases 6 vertices and 9 edges

3: 3 faces and 4 with the base 4 vertices and 6 edges

4 0
4 years ago
A police officer wants to know the proportion of crimes that are burglaries within the last five years. She randomly selects 40
svlad2 [7]

Answer:

a. Yes

See explanation below.

Step-by-step explanation:

Assuming that if the question is if we can use the normal approximation for the true proportion.

For this case we have n = 40 and p = 0.3 (probability of success)

We need to check some conditions:

1) Random sample : This condition is satisfied since the problem says that she randomly select 40 records

2) n \hat p = 40*0.3 =12 \geq 10

n(1-\hat p)= 30 *(1-0.3) = 28 \geq 10)

3) 10% condition: the random sample is assumed to be less than 10% of the original population size (assumed)

The population proportion have the following distribution  

p \sim N(p,\sqrt{\frac{\hat p(1-\hat p)}{n}})  

So then as we can see the normal approximation for this case makes sense since we have all the 3 conditions satisfied so then the answer would be:

a. Yes

7 0
3 years ago
Last week maria ran 16.4 miles more than Kathryn. Maria ran 30 miles. How many did Kathryn run ?​
solong [7]
Aşkım sen ne yapıyorsun yaz bana

5 0
3 years ago
Read 2 more answers
Solve by factoring 6x^3 - 16x^2 - 32x = 0. Enter your work
Rashid [163]

Hey there! :)

Answer:

x = -4/3, 0, 4.

Step-by-step explanation:

Starting with:

6x³ - 16x² - 32x = 0

Factor out the greatest common factor between each term, or 2x:

2x(3x² - 8x - 16) = 0

Factor the expression inside the parenthesis:

2x(3x +4)(x - 4) = 0

Use the Zero Product Property to solve the equation:

2x = 0

x = 0

---------

3x + 4 = 0

3x = -4

x = -4/3

-------------

x - 4 = 0

x = 4

-------------

Therefore, the solutions to this equation are:

x = -4/3, 0, 4.

5 0
3 years ago
Read 2 more answers
2. A stone is an English measure of weight. There are 14 pounds in 1 stone and 2.2 pounds in 1 kilogram. A certain person weighs
ziro4ka [17]

Answer:

The answer to your question is 57.3 kg

Step-by-step explanation:

a)

   X stones \frac{14 pounds}{1 stone} \frac{1 kilogram}{2.2 pounds}

   = \frac{14}{2.2}

  = 6.36 X stones

b)    Weight = 6.36 (x)

x = 9 stones

      Weight = 6.36 (9)                

                    = 57.3 kg

4 0
4 years ago
Read 2 more answers
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