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3 years ago

For each point, identify the axis or quadrant where the point is located.

Mathematics

1 answer:

jolli1 [7]3 years ago

8 0

Answer: curcular track is 1/4 completing each mile every 1/15 mile

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2/12÷6/9 what is the anwers?

x= -1± $\sqrt{-159)\\$ ----------------------------------------- -16

Which of the following functions maps 3 to -5? O f(x) = -x + 2 O f(x) = x-5 O f(x) = x + 8 O f(x) = 4 – x²

? I need help! AsAP!

Is Y=0.25x-3 linear or non-linear Explain (get brainliest)

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WHAT DOES THIS EQUAL AWNSER FAST -6.1+0.4x+1.2=-6.3

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The vertices of a triangle ABC are a(5,5) B(-3,-1) C( -1,-3)

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Step-by-step explanation:

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In ΔABC, the measure of ∠C=90°, the measure of ∠A=40°, and BC = 2.6 feet. Find the length of CA to the nearest tenth of a foot.

vladimir1956 [14]

Answer:

3.1

Step-by-step explanation:

8 0

3 years ago

A BAKER USES 2/3 CUP OF RYE FLOUR IN EACH LOAF OF BREAD. HOW MANY CUPS OF RYE FLOUR WILL THE BAKER USE IN 9 LOAVES?

GaryK [48]

Answer:

Step-by-step explanation:

2/3 times 9 = 6

(Also: The Caps really attracted me)

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3 years ago

Factor (x^2-3x-2) into a binomial... I keep getting (x-1)(x-2) but it's not right

meriva

Are you absolutely positive that those are the signs exactly as in the question? As far as I know, there isn't 2 numbers that add to -3 and multiply to -2, meaning you can't factor it

6 0

3 years ago

If f(x) = 2x² + 1, what is f(x) when x = 3?<br> 0 1<br> 07<br> O 13<br> 19

zhuklara [117]

Answer:

f(x)=19

Step-by-step explanation:

2(3)²+1

2(9)+1

3 0

2 years ago

John inherited $25,000 and invested part of it in a money market account, part in municipal bonds, and part in a mutual fund. Af

Lena [83]

Answer:

Step-by-step explanation:

Understand

Let :

x = The amount of money invested in the money market account.

y = The amount of money invested in municipal bonds.

z = The amount of money invested in a mutual fund.

The total investment is represented as:

x + y + z = $25,000

The interest earned can be represented as:

0.06x + 0.07y + 0.08z = $1,620

The amount invested in municipal bonds and mutual funds can be represented as:

y - z = $6,000

Process

The system of three equations can now be solved either by substitution, elimination, or with matrices. Any process appropriately applied will supply a correct answer. For this example, let's solve the problem by using matrices.

Solving with Matrices

The process of using matrices is essentially a shortcut for the process of elimination. Each row of the matrix represents an equation, and each column represents coefficients of one of the variables.

Step 1: Create a three-row by four-column matrix using coefficients and the constant of each equation.

The vertical lines in the matrix stands for the equal signs between both sides of each equation. The first column contains the coefficients of x; the second column contains the coefficients of y; the third column contains the coefficients of z; the last column contains the constants.

We want to convert the original matrix to the following matrix.

because you can then read the matrix as x = a, y = b, and z = c.

Step 2: We work with column 1 first. The number 1 is already in cell 11(Row 1- Col 1).

Add -0.06 times Row 1 to Row 2 to form a new Row 2.

-0.06 [Row 1] + [Row 2] = [New Row 2]

Step 3: We will now work with column 1. We want 1 in Cell 22, and we achieve this by multiplying Row 2 by 100.

100[Row 2] = [New Row 2]

Step 4: Let's now manipulate the matrix so that there are zeros in Cell 12 and Cell 32. We do this by adding Row 2 to Row 1 and Row 3 to Row 2. That gives us a new Row 1 and a new Row 3.

- [Row 2] + [Row 1] = [New Row 1]

- [Row 2] + [Row 3] = [New Row 3]

Step 5: Let's now manipulate the matrix so that there is a 1 in Cell 33. We do this by multiplying Row 3 by -1.

-1 [Row 3] = [New Row 3]

Step 6: Let's now manipulate the matrix so that there are zeros in Cell 13 and Cell 23. We do this by adding Row 3 to Row 1 for a new Row 1 and adding -2 times Row 3 to Row 2 for a new Row 3.

1[Row 3] + [Row 1] = [New Row 1]

-2[Row 3] + [Row 2] = [New Row 2]

Solution

You can now read the answers off the matrix:

x = $15,000 in the money market

y = $8,000 in municipal bonds

z = $2,000 in a mutual fund

6 0

3 years ago