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Law Incorporation [45]
3 years ago
11

Can someone help me please

Mathematics
2 answers:
Blizzard [7]3 years ago
8 0

Answer:

x=2cm

Step-by-step explanation:

By using pythagoras theorem:

H²=P²+B²

x²=1.6²+1.2²

x=2cm

densk [106]3 years ago
3 0
X equals 2cm I think I’m not sure
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What is 15% of 60?
klemol [59]

Answer:

C. 9

Step-by-step explanation:

15/100*60

3/20*60

180/20

9

4 0
3 years ago
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Factor 9x^2+66xy+121y^2
Korvikt [17]
Answer: (3x + 11y)^2

Demonstration:

The polynomial is a perfect square trinomial, because:

1) √ [9x^2] = 3x

2) √121y^2] = 11y

3) 66xy = 2 *(3x)(11y)

Then it is factored as a square binomial, being the factored expression:

 [ 3x + 11y]^2

Now you can verify working backwar, i.e expanding the parenthesis.

Remember that the expansion of a square binomial is:

- square of the first term => (3x)^2 = 9x^2
- double product of first term times second term =>2 (3x)(11y) = 66xy
- square of the second term => (11y)^2 = 121y^2

=> [3x + 11y]^2 = 9x^2 + 66xy + 121y^2, which is the original polynomial.

7 0
4 years ago
Which of the following is another way to express the equation 8 - (-d) = 43?
Mazyrski [523]

Answer:

8 + d = 43

Step-by-step explanation:

8 - ( - d) = 48

=  > 8 +  (- 1) \times ( - d) = 43

=  > 8 + d = 43

6 0
3 years ago
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What is the median of the following data values? 108,102,43,100,22
PolarNik [594]

<u>Answer:</u> 100

<u>Reasoning:</u> The median is the "middle value" and to find it put the numbers in order from least to greatest.

22, 43, 100, 102, 108.

now take a number from both sides

43, 100, 102

Once again.

100

So 100 is the median.

6 0
3 years ago
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9 Find the sum of (x + 5), (-4x – 2), and (2x – 1).
s344n2d4d5 [400]

Answer: -x + 2

Step-by-step explanation:

So I assume that the question would be set up like this if you are finding the sum of all 3 terms:

(x + 5) + (-4x - 2) + (2x - 1)

1) Take out parentheses

x + 5 - 4x - 2 + 2x - 1

2) Add like terms

For the x terms:

x - 4x = -3x

-3x + 2x = -x

For the other terms:

5 - 2 = 3

3 - 1 = 2

The sum of the terms is <u>-x + 2</u>

7 0
3 years ago
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