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3 years ago

Question 3: Solve the Variables Will give brainliest, must show work and answers!

Mathematics

1 answer:

dybincka [34]3 years ago

5 0

3.

x = 3 because the 2 legs of 45-45-90 triangle are equal

y^2 = 3^2 + 3^2 = 18
y = sqrt 18 = 3 sqrt2

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Cindy makes $9 an hour working at a local plant nursery. She does this for 10 weeks of her summer vacation. She works about 20 h

Alexxandr [17]

9.00x20=180 180x10=1,800 your answer is D

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4 years ago

Given a table of values of a quadratic function, which of the following do you absolutely need in order to find its equation? *

nadya68 [22]

Answer:

The general form of a quadratic function is --> y = ax2 + bx + c

Since (0, -2) exists for the function, we can plug in those values:

-2 = a(0)2 + b(0) + c

-2 = 0 + 0 + c

-2 = c

So now our function so far is --> y = ax2 + bx - 2

We have two pairs of coordinates left: (-1, -8) and (3, -8).

First, plug in the first pair and simplify as much as you can:

-8 = a(-1)2 + b(-1) - 2

-8 = a - b - 2 ( add 2 to both sides )

-6 = a - b (stop here because we can't go further)

Second, plug in the second pair and simplify as much as you can:

-8 = a(3)2 + b(3) - 2

-8 = 9a + 3b - 2 ( add 2 to both sides )

-6 = 9a + 3b (stop here because we can't go further)

Now we have these two equations left:

a - b = -6

9a + 3b = -6

Now we solve for a and b using systems of equations, using one of three ways:

substitution

elimination

graphing (not my favorite, but it is doable)

Using substitution:

a - b = -6 can be rewritten as a = b - 6

plug into the second equation and solve for b

9(b - 6) + 3b = -6 (distribute the 9)

9b - 54 + 3b = -6 (combine all of the b's)

12b - 54 = -6 (add 54 to both sides)

12b = 48 (divide by 12 on both sides to isolate b)

b = 4

plug b into one of the original two equations

a - 4 = -6 (add 4 to both sides)

a = -2

The quadratic equation for this table is y = -2x2 + 4b - 2

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3 years ago

Convert the expression <img src="https://tex.z-dn.net/?f=%5Csort%5B4%5D%7B3%7D" id="TexFormula1" title="\sort[4]{3}" alt="\sort[

castortr0y [4]

Answer:

what is this ?

Step-by-step explanation:

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3 years ago

Kenneth Brown is the principal owner of Brown Oil, Inc. After quitting his university teaching job, Ken has been able to increas

meriva

Answer:

Multiple Answers

Step-by-step explanation:

You forgot to put all the question, I attached it to the answer.

The questions we need to response are:

a)What type of decision is Ken facing?

There are three types of decision in probability. This are:

Risky that cover when the event is known and you know the chances of success.

Of uncertainty that cover for a known event but you dont know the possibilities of success.

Of ignorance that cover a unknown event, with unknown possibilities of succes.

So the decision Kenneth is facing is of uncertainty.

(b)What decision criterion should he use?

The criterion decision he should take would be Maximax.

This states that you should select the option that have the maximum gain.

(c)What alternative is best? The best option should be sub 100 because of the decision criterion we decided to use. Sub 100 has the maximum gain.

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3 years ago

alice planted 6 tomato plants 4 bean plants and 2 pepper plant. each row had 6 plants. how many rows did she plant

ANTONII [103]

First, add the number of plants.

6+4+2= 12 plants in total

There can be 6 plants in each row so divide 12 by 6 to get the number of rows used to plant 12 plants.

12/6=2

The answer is 2 rows.

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3 years ago

Read 2 more answers