Step-by-step explanation: The sales this week are $945 and they are $131 less than that of last week. This means that they have reduce by $131,therefore we have to add the two values

7 0

4 years ago

Find the general form, Ax2+Ay2+Dx+Ey+F=0, by identifying the coefficients A,D,E,&F center:(0,1); r=1 (x-0)2+(y-1)2=1 x2+y2-2

siniylev [52]

Answer:

The value of A is 1, D is 0, E is -2 and F is 0.

Step-by-step explanation:

The given equation is

$Ax^2+Ay^2+Dx+Ey+F=0$ ...(1)

The standard form of the circle is

$(x-h)^2+(y-k)^2=r^2$

Where, (h,k) is the center of the circle and r is the radius.

$(x-0)^2+(y-1)^2=1$

$x^2+y^2-2y+1-1=0$

$x^2+y^2-2y=0$

It can be written as

$x^2+y^2+0x-2y+0=0$ ....(2)

On comparing (1) and (2) we get.

$A=1$

$D=0$

$E=-2$

$F=0$

Therefore the value of A is 1, D is 0, E is -2 and F is 0.

6 0

4 years ago

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Write the equation in point slope form for a line that passes through the points (-2,3) and (6,-1)

diamong [38]

Answer:

y - 3 = -1/2(x + 2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate

y₁ - y coordinate

m - slope

Step-by-step explanation:

Step 1: Define

Point (-2, 3)

Point (6, -1)

Step 2: Find slope m

Substitute: $m=\frac{-1-3}{6+2}$
Subtract/Add: $m=\frac{-4}{8}$
Simplify: $m=\frac{-1}{2}$

Step 3: Write linear equation

Point-Slope Form: y - 3 = -1/2(x + 2)

3 0

3 years ago

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From $90 to $39. What is the percent of change? (round to nearest WHOLE percent)

DENIUS [597]

The percentage would be 51% but if you want to round it the answer is 50%

7 0

3 years ago

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