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Annette [7]
3 years ago
5

Find the length of rhombus whose diogonals are length 12 cm and 16 cm​

Mathematics
1 answer:
grin007 [14]3 years ago
7 0

In ΔAOD  (AD)  =(AO)

2+(OD)

2   =36+64    AD

2 =100

  AD= 100

=10cm

 Rhombus has all sides equal

AB = AD = BC = CD = 10 cm

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If 4/5 of a population of a certain town is considered to be middle class and the population of the town is 2000 how many people
const2013 [10]
First, you would need to create an equation for this problem.
\frac{4}{5} = \frac{x}{2,000}

Next, you would cross multiply. 
5x = 8,000

Now, all you would have to do is isolate the x. To do this, you would divide both sides by 5. 
x = <span>1,600

1,600 people are considered middle class. 

I hope this helps!</span>
8 0
3 years ago
2a +7= 15 answer please
Paul [167]

Answer:

a = 4

Step-by-step explanation:

2a + 7 = 15

     - 7  - 7

2a = 8

/2   /2

a = 4

Hope this helps!

7 0
2 years ago
Read 2 more answers
What is the probability that a person who is above 35 years old has a hemoglobin level of 9 or above?
amm1812

Answer:

option C

0.531

Step-by-step explanation:

Given in the question,

total number of people of age 35 years = 162

Total number of people of age 35 and having haemoglobin 9 or above

162 - 76

86

probability  = 86/162

                   = 0.531

7 0
3 years ago
Read 2 more answers
Find the derivative of Y=2xcos2x​
Nastasia [14]

Answer:

Y' = -xsin(2x) + 2cos(2x)

Step-by-step explanation:

For this problem, we will need to use the product rule since you have two terms that contain the variable x.

The product rule is simply as follows:

The derivative of the function is the product of the first term times the derivative of the second term plus the derivative of the first term times the second term.

Note the derivative of 2x with respect to x, is 2.

Note the derivative of cos(2x) with respect to x is (-1/2) sin(2x).

With this in mind, let's find the derivative of our function with respect to x.

Y = 2xcos2x

Y = 2x * cos(2x)

Y' = 2x * (-1/2)sin(2x) + 2 * cos(2x)

Y' = (2x * -1 / 2) sin(2x) + 2 * cos(2x)

Y' = (-x)sin(2x) + 2cos(2x)

So the derivative of our function is Y' = -xsin(2x) + 2cos(2x) according to the application of the product rule.

Cheers.

3 0
3 years ago
PLEASE HELP ME PLEASE
DaniilM [7]

Answer:

To find the area of a rectangle we use the formula:

L x W

Replace those with it's actual value

4 3/4 x 3

19/4 x 3 = 14.25, 14 square inches is the area

8 0
2 years ago
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