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Naddika [18.5K]
3 years ago
9

Complete this statement: 27a^2x2 + 45a^2x + 36a^2=9a^2()

Mathematics
1 answer:
Agata [3.3K]3 years ago
3 0

Answer:

Step-by-step explanation:

27a^2x2 + 45a^2x + 36a^2=9a^2

54a^2 + 90xa^2 + 72a^2 = 9a^2

Collecting like terms

90xa^2 = 9a^2 - 72a^2 - 54a^2

90xa^2 = -117a^2

Dividing each side by 90a^2

x = -117a^2/90a^2

x = -117/90

x = -13/10

X = -1 3/10

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If the last digit in 1.50 is 5 or more and the second to the last digit in 1.50 is 9, then remove the last digit, make the second to last digit 0, and add 1 to the number to the left of the decimal place.

When rounding 1.50 to one decimal place we use One Decimal Place Rule #1. Therefore, the answer to "What is 1.50 rounded to 1 decimal place?" is:

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3 years ago
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Anmol got 60 marks out of 80 marks in mathematics what percent marks did he get​
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Answer:

75%

Step-by-Step Explanation:

There are two ways to go about this.

1) We can simply put it as a fraction = 60/80.

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  Then to change a decimal into a percentage, we multiply by 100% = 75%

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2) We can simply it after it is put into a fraction = 60/80 = 3/4

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lorasvet [3.4K]

Answer:

Option C. P=0.531

Step-by-step explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.  

The size of the sample space is the total number of possible outcomes  

The event space is the number of outcomes in the event you are interested in.  

so  

Let

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y-----> size of the sample space  (total person's age above 35 years)

so

P=\frac{x}{y}

In this problem we have

y=162

Complete the table to find the total person's hemoglobin level of 9 or above (person's age above 35)

Let

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Find the value of x

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substitute the values

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4 years ago
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Answer:

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y=-1/7x + (5/7+7/7)

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