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3 years ago

I dont understand I need help

Mathematics

1 answer:

gregori [183]3 years ago

6 0

Answer:

7.4825 km or 7.48 km (rounded to nearest hundredth)

Step-by-step explanation:

Ranch's measurements rounded up to the nearest hundredth:

1st measurement = $\sqrt{60}$ = 7.75 km

2nd measurement = $\frac{58}{8}$ = 7.25 km

3rd measurement = 7.3(recurring) = 7.33 km

4th measurement = 7 $\frac{3}{5}$ = 7.60

The average of the four measurements is:

(7.75 + 7.25 + 7.33 + 7.60) ÷ 4 = 7.4825 km or 7.48 km (rounded to nearest hundredth)

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What is the product? 6 [ 4 -2 1 7 3 0]

saul85 [17]

Answer:

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Step-by-step explanation:

solve for bracket first

4-21730 = -21726 then multiply by 6 =

-130356

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3 years ago

I don’t remember how I get the answer to this. I have the answer key though. Please help, I have a test in an hour

mrs_skeptik [129]

Answer:

f(x) = (x -2)(x -1+3i)(x -1-3i)

Step-by-step explanation:

You can use synthetic division to find the remaining quadratic factor in the cubic. Then any of the usual means of solving the quadratic will help you find its linear factors.

In the attached, I show the synthetic division, the factoring to real numbers, and the solution that finds the complex linear factors by completing the square.

Of course, you know that for zeros a, b, and c, the linear factors are ...

f(x) = (x -a)(x -b)(x -c)

Here, we have a=2, b=1-3i, c=1+3i.

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3 years ago

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Factor completely 3x ^2 -27

Tom [10]

First, factor out a 3.
3(x² - 9)

In any quadratic ax² + bx + c, we can split the bx term up into two new terms which we want to equal the product of a and c.
In this case, we have x² + 0x - 9. (the 0x is a placeholder)
We want two numbers that add to 0 and multiply to get -9.
Obviously, these numbers are 3 and -3.

Now we have 3(x² + 3x - 3x - 9).
Let's factor.
3(x(x+3)-3(x+3))
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There are multiple shortcuts which you could make here, FYI:
Instead of splitting the middle, if your a value is 1, you can go straight to that step (x+number)(x+other number).
Whenever you have a difference of squares, like a²-b², that factors to (a+b)(a-b).

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3 years ago

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siniylev [52]

Answer:y=-5/3x+1

-5/3

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3 years ago

Express the equation x = 10 and y = -3 as a linear equation in two variables

34kurt

Answer:

For x = 10:

$x + 0y - 10 = 0$