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xxMikexx [17]
3 years ago
13

If a1 = 2 and an - 2an-1 then find the value of 06.need help with these please ​

Mathematics
1 answer:
anygoal [31]3 years ago
7 0

Answer:

Could you please organize your question more?

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$12 per 45 minutes is how much per hour? (I will give brainliest to the first person that answers)
gogolik [260]

Answer:

16 per hour

Step-by-step explanation:

12/45         x/60 cross multiply

45x=720 divide by 45 from each side

x=16

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2 years ago
What is the answer to:<br> 3(x-2)+2(4x-1)
irga5000 [103]
11x-8 is the answer
8 0
3 years ago
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Find the value of sin pi/4-x cos pi/4-y + cospi/4-x sin pi/4-y​
defon
Annaba jajsjdhs jakka dusk
3 0
2 years ago
Does anyone know how to do this?? Help please!!!!
Doss [256]

Answer:

When we have a rational function like:

r(x) = \frac{x + 1}{x^2 + 3}

The domain will be the set of all real numbers, such that the denominator is different than zero.

So the first step is to find the values of x such that the denominator (x^2 + 3) is equal to zero.

Then we need to solve:

x^2 + 3 = 0

x^2 = -3

x = √(-3)

This is the square root of a negative number, then this is a complex number.

This means that there is no real number such that x^2 + 3 is equal to zero, then if x can only be a real number, we will never have the denominator equal to zero, so the domain will be the set of all real numbers.

D: x ∈ R.

b) we want to find two different numbers x such that:

r(x) = 1/4

Then we need to solve:

\frac{1}{4} = \frac{x + 1}{x^2 + 3}

We can multiply both sides by (x^2 + 3)

\frac{1}{4}*(x^2 + 3) = \frac{x + 1}{x^2 + 3}*(x^2 + 3)

\frac{x^2 + 3}{4} = x + 1

Now we can multiply both sides by 4:

\frac{x^2 + 3}{4}*4 = (x + 1)*4

x^2 + 3 = 4*x + 4

Now we only need to solve the quadratic equation:

x^2 + 3 - 4*x - 4 = 0

x^2 - 4*x - 1 = 0

We can use the Bhaskara's formula to solve this, remember that for an equation like:

a*x^2 + b*x + c = 0

the solutions are:

x = \frac{-b +- \sqrt{b^2 - 4*a*c} }{2*a}

here we have:

a = 1

b = -4

c = -1

Then in this case the solutions are:

x = \frac{-(-4) +- \sqrt{(-4)^2 - 4*1*(-1)} }{2*(1)} = \frac{4 +- 4.47}{2}

x = (4 + 4.47)/2 = 4.235

x = (4 - 4.47)/2 = -0.235

5 0
3 years ago
Read the question and type your response in the box provided. Your response will be saved automatically.
larisa [96]

Answer:

512

Step-by-step explanation:

8 x 8 x 8 = 512

4 0
3 years ago
Read 2 more answers
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