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3 years ago

Please answer this question only if you know the answer!

Mathematics

1 answer:

weqwewe [10]3 years ago

3 0

there were only be 3

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What is the domain of f(x)?

Varvara68 [4.7K]

Answer:

Step-by-step explanation:Domain is the set of x values in which the function exists. Range is the set of y values in which the function exists. f(x) = 8 / (x + 9) Since the denominator cannot be zero, we set the denominator equal to zero.

7 0

3 years ago

What is the product of (3a 2)(4a2 Ă˘â‚¬"" 2a 9)? 12a3 Ă˘Ââ€™ 2a 18 12a3 6a 9 12a3 Ă˘Ââ€™ 6a2 23a 18 12a3 2a2 23a 18.

Kay [80]

The product of $(3a + 2)(4a^2 - 2a + 9)$ will be $12a^3 + 2a^2 + 23a + 18.$

Given expression,

$(3a + 2)(4a^2 - 2a + 9).$

We have to find the product of $(3a + 2)(4a^2 - 2a + 9).$

Now using distributive property, we get

$3a(4a^2) - 3a(2a) + 3a(9) + 2(4a^2) - 2(2a) + 2(9)$

$12a^3 - 6a^2 + 27a + 8a^2 - 4a + 18$

$12a^3 + 2a^2 + 23a + 18$

Hence the product of $(3a + 2)(4a2 - 2a + 9)$ is $12a^3 + 2a^2 + 23a + 18.$

Thus the correct option is (D). $12a^3 + 2a^2 + 23a + 18.$

For more details on distributive property follow the link:

brainly.com/question/13130806

7 0

3 years ago

A simplified model of the human blood-type system has four blood types: A, B, AB, and O. There are two antigens, anti-A and anti

dexar [7]

Answer: Blood type will be A when event "A" happened and event "B" did not happen. Blood type will be B when event "A" did not happened and event "B" happened. Blood type will be AB when both events happened and blood type will be O when both events did not happen.

Step-by-step explanation:

S={AntiA reacts; AntiA does not react; AntiB reacts; AntiB does not react}

If AntiA reacts and AntiB reacts = AB (A∩B)

If AntiA does not react and AntiB does not react= O (A'∩B')

If AntiA reacts and AntiB does not react= A (A∩B')

If AntiA does not react and AntiB reacts= B (A'∩B)

4 0

4 years ago

The three incoming currents at a node in an electrical circuit measure 0.7 amps, 0.68 amps, and 0.47 amps two of the three outgo

OLga [1]

What goes in goes out. This means none of the current is lost. So if 0.7amps+0.68amps+0.47amps = 1.85 amps comes in, then 1.85 amps goes out. So far we have 0.8 amps+0.55 amps going out= 1.35 amps. This means we need an additional 1.85-1.35amps going out= 0.5 amps for the third outgoing current. Cheers!

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3 years ago

2+x/6 - x+6/10 = <br> Step by step explanation pls

Nikitich [7]

click on it to view full solution.

I think it is right

4 0

3 years ago