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Lunna [17]
3 years ago
10

Factorise 49m²-84mn+36n² using the identity x²+(a+b)x+ab=(x+a)(x+b)​

Mathematics
1 answer:
hodyreva [135]3 years ago
5 0

Answer:

<h3> (7m-6n)(7m-6n)</h3>

Step-by-step explanation:

Given the expression 49m²-84mn+36n², this can also be written as;

49m²-84mn+36n²

= 7²m² - 84mn + 6²n²

= (7m)²-2*7m*6n+ (6n)²

= (7m-6n)²

= (7m-6n)(7m-6n)

Hence the expanded form is  (7m-6n)(7m-6n)

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Answer immediatly!
olga55 [171]
Answer: 10/9x milliliters

Let the volume of full bottle is y milliliter.
According to the question,
90\% \text{ of } y = x
\frac{90}{100} y = x
\frac{9}{10} y = x
y=\frac{10}{9} x
Thus, the volume of full bottle = \frac{10}{9} x\text { milliliter}
⇒ Option A is correct.
3 0
4 years ago
Donald bought a box of golf balls for $9.31. There were 18 golf balls in the box. How?
Ksenya-84 [330]

Answer:

.51 cents

Step-by-step explanation:

9.31÷18=.51

5 0
3 years ago
Read 2 more answers
A basketball team has 10 players. Before each game, the coach picks 2 of those players to carry the team's
labwork [276]

The different group of 2 players that the coach can pick is 45 groups.

<h3>Selection of groups</h3>

The selection of groups of 2 player can be done using the method of combination.

<h3>Different groups of 2 players</h3>

The different group of 2 players that the coach can pick from the 10 players is calculated as follows;

n = 10C2

n = \frac{10!}{(10-2)! 2!} = \frac{10 \times 9\times 8!}{8! \times 2} = 45

Thus, the different group of 2 players that the coach can pick is 45 groups.

Learn more about combinations here: brainly.com/question/25821700

6 0
2 years ago
a recipe for one batch of cookies calls for 5 cups of flour and 2 teaspoons of vanilla.how many batches can you make with 15 cup
Damm [24]

Answer:

hjgvv,v

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
Which is a equivalent to 80 1/4x
elena55 [62]
Since you did not provide options for what 80\frac{1}{4}x could be equivalent to,, it is near to impossible to answer this question fully. I will simplify 80\frac{1}{4}x for you and then when you can provide the options for me,, I could help you find the answer if you need it. 
To simplify this you must reduce the numbers with 4 in order to find your final answer.
20x.
This means that the correct answer to your question is 20x.
Let me know if you have any further questions.
:)
7 0
4 years ago
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