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3 years ago

4a2b-6ab2 +12ab3 Factorise

Mathematics

1 answer:

zlopas [31]3 years ago

3 0

38ab you gotta calculate the product which is 8 and 36 then collect like terms and you get 38ab

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scoundrel [369]

For the first point, remember this simple rule: every exponential function $a^x$ always returns $a$ when evaluated at $x = 1$ . In fact, $a^1=a$ for every possible base $a$ .

So, we can see that the graph of the exponential passes through the point $(1,y)$ where $y$ appears to be between 1 and 2. So, the only feasible option would be $y = 1.8^x$ , because it passes throught the point $(1,1.8)$ because $f(1) = 1.8^1 = 1.8$ .

The other functions are wrong because:

$0.45^x$ would pass through $(1,0.45)$ , which would be between 0 and 1 on the y axis
$2.4^x$ would pass through $(1,2.4)$ , which would be between 2 and 3 on the y axis
$0.31^x$ would pass through $(1,0.31)$ , which would be between 0 and 1 on the y axis

As for the second question, you simply have to plug in the values: the function

$f(x) = 7^x$

means that you have to choose an input, x, and use it as exponent for 7. So, if you choose x=2, it means that you have to give exponent 2 to 7, i.e. you replace the x with the specific value, 2.

So, the expression becomes

$f(2) = 7^2 = 49$

7 0

4 years ago

Answer this and I’ll make you Brainly!

sveticcg [70]

Answer:

A. f(x)=9x+4

Step-by-step explanation:

Function is f(x) =9x+4, because if x=1, then f(1)=9*1+4=9+4=13;

if x=5,then f(5)=9*5+4=45+4=49

3 0

3 years ago

Read 2 more answers

What is fifty-eight plus ninety-eight minus twenty-three

mote1985 [20]

Answer:

Answer is 133

Step-by-step explanation:

58 + 98 -23 =133

4 0

3 years ago

Read 2 more answers

Use 3.1 < sqrt 10 <3.2 to find the possible values of each expression. 2+sqrt 10

lilavasa [31]

The inequality which represents possible values of the expression 2+sqrt 10 by virtue of the given inequality; 3.1 < sqrt 10 < 3.2 as in the task content is; 5.1 < 2 + sqrt 10 < 5.2.

<h3>Which inequality correctly expresses the possible values of the expression; 2 + √10 as required in the task content?</h3>

It follows from the task content that the expression given is;

3.1 < sqrt 10 < 3.2

Since the given premises is an inequality, it follows that adding the same number to all parts of the inequality stills holds the inequality true.

Hence by adding 2 to all parts of the inequality, we have;

2 + 3.1 < 2 + sqrt 10 < 2 + 3.2

Therefore, we have;

5.1 < 2 + sqrt 10 < 5.2

Ultimately, 5.1 < 2 + sqrt 10 < 5.2 represent the possible values of the expression 2+sqrt 10 as given by the inequality 3.1 < sqrt 10 < 3.2.

4a2b-6ab2 +12ab3 Factorise​

4a2b-6ab2 +12ab3 Factorise