Write an equatio in standard form using integers when x=-2 and y=3

Answers

Answer 1

Answer:

X+y=1

Step-by-step explanation:

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Sage belongs to a bird-watching club. Every two days, she goes out and counts the number of Black-hooded Parakeets she sees. The sightings can be approximated by the equation y = 1/2x + 3. What is the approximate rate of change for the number of parakeets seen?3

1/2

-1/2

7/2

Answers

Answer:

The rate of change for the number of parakeets seen is 1/2

Step-by-step explanation:

The sightings can be approximated by the equation:

y = (1/2)*x + 3

Which represents a line. Any line can be writen by an equation in the following form:

y = m*x + b

Where m is the slope of the lane or it's rate of change and b is the value for "y" when "x" equals zero. Applying this knowledge to the equation of the bird sightings we can se that the sightings grows 1/2 for every one unit that x grows, therefore the rate of change is 1/2.

Write each numeral in expanded form? 2356

Answers

2,356 = 2,000 + 300 + 50 + 6
As simple as that!

Analyze Mario's work is he correct? not what was his mistake? Mano says he found the height of a cone that has a volume of 72 cubic millimeters and a diameter of 12 millimeters 72pi = 1/3 * pi * (12 ^ 2) * h 1.72pi = 1/3 * pi * (144) * h 72pi = 48pi * (h) 3.15 h Yes he is correct No, he did not correctly square 12 on the left side No, he did not use the radius measure in the formula No he did not correctly undo the multiplication on the side

Answers

Answer:

No, he did not use the radius measure in the formula.

Step-by-step explanation:

i just took the test

Answer:

No, he did not use the radius measure in the formula.

Step-by-step explanation:

The combined age of three relatives is 120 years. James is three times the age of Dan, and Paul is two times the sum of James and Dan. How old is each relative

Answers

The ages of each relative are 30, 10 and 80 years respectively.

Let James' age be J.

Let Dan's age be D.

Let Paul's age be P.

Translating the word problem into an algebraic expression, we have;

$J + D + P = 120$ ......equation 1

$J = 3D$ .......equation 2

$P = 2(J + D)$ ......equation 3

Substituting eqn 2 and 3 into eqn 1, we have;

$3D + D + 2J + 2D = 120\n\n6D + 2(3D) = 120\n\n6D + 6D = 120\n\n12D = 120\n\nD = (120)/(12)$

Dan, D = 10 years

For James;

$J = 3(10)$

James, J = 30 years.

For Paul;

$P = 2(J + D)$

$P = 2(30 + 10)\n\nP = 2(40)$

Paul, P = 80 years.

Therefore, the ages of each relative are 30, 10 and 80 years respectively.

Answers

Answer:

an = 12 -7(n-1)

an = 19-7n

Step-by-step explanation:

The explicit formula for an arithmetic sequence is

an = a1 +d(n-1) where a1 is the first term and d is the common difference

a1 =12

We find d by taking the second term and subtracting the first term

d = 5-12

d = -7

an = 12 -7(n-1)

We can simplify this

an = 12 -7n+7

an = 19-7n

Write and solve a system of equations to find the value of each variable

Answers

Answer:

Step-by-step explanation:

2x+5y=12

3x+4y=11

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3(2x+5y)=3(12)

-2(3x+4y)=-2(11)

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6x+15y=36

-6x-8y=-22

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7y=14

y=14/7=2

2x+5(2)=12

2x+10=12

2x=12-10=2

x=2/2=1

x=1, y=2. (1, 2)

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I just provided you an example of a system of equations and I already solved it for you.

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