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miskamm [114]
3 years ago
5

12x2 + 3x + 6 and -7x2 - 4x - 2

Mathematics
1 answer:
Semenov [28]3 years ago
8 0

Answer:

Step-by-step explanation:12x2 + 3x + 6 + (-7)x2 - 4x - 2 = 0

12•x•2 + 3•x + 6 + (-7)•x•2 - 4•x - 2 = 0

9x = -4

x = -4/

9

≈ -0.444444

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Write a recursive rule and a explicit rule for the sequence I really need help
Shalnov [3]

Answer

y = 6x

Explanation

To write a recursive or explict rue for this sequence, we need to firstly examine the given sequence.

If we let money spent = y and number of weeks = x

when x = 1, y = 6

when x = 2, y = 12

when x = 3, y = 18

when x = 4, y = 24

We can easily see that as x increases by units of 1, the y increases by corresponding units of 6.

A rule that will work for this is that

y = 6x

so that, when x = 1, y = 6(1) = 6 (as it is on that graph)

when x = 2, y = 6(2) = 12 (as it is on that graph again)

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Estimate L4 and R4 over [0,7] for the function f(x) = 6x^2
jasenka [17]

The value of  L4 and R4 over [0,7] for the function f(x) = 6x² will be 2[2√0 + 2√2 + 2√4 + 2√6] and  2[2√2 + 2√4 + 2√6 + 2√8] respectively.

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that the function is,

I'm assuming that you mean the left and right Riemann sums with four equal subintervals when you refer to L4 and R4.

If so, then Δx = (8-0)/4 = 2, and f(x) = 2√x.

L4 = f(0)Δx + f(2)Δx + f(4)Δx + f(6)Δx

L4 =2[2√0 + 2√2 + 2√4 + 2√6]

R4 = 2[2√2 + 2√4 + 2√6 + 2√8]

Thus, the value of  L4 and R4 over [0,7] for the function f(x) = 6x² will be 2[2√0 + 2√2 + 2√4 + 2√6] and  2[2√2 + 2√4 + 2√6 + 2√8] respectively.

Learn more about the function here:

brainly.com/question/5245372

#SPJ2

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VARVARA [1.3K]

Answer:

4 1/3 is heavier and worth more.

Step-by-step explanation:

I attached a picture to show why:

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