Write an expression to represent the perimeter of: 2a-3 2a 3a+1

A faucet is used to add water to a large bottle that already contained some water. after it has been filling for 4 seconds, the

mina [271]

The problem gives us points (4, 12) and (11,26). We first find the slope using m=(y2-y1)/(x2-x1). We substitute and get m=(26-12)/(11-4). This simplifies to m = 2. We can then use the point-slope form y-y1 = m(x-x1). We substitute and get y - 12 = 2(x - 4). We distribute: y - 12 = 2x - 8. We add 12 to both sides to get our final answer, y = 2x + 4.

7 0

3 years ago

A gardener is planting two types of trees. Type A is three feet and grows at a rate of 15 inches per year. Type B is four feet t

4vir4ik [10]

Answer:

2.4 years

Step-by-step explanation:

We can write two equations for each Type and equate and solve for unknown variable.

First, we need to make the initial height (in ft) to inches.

Type A:

3 feet = 3 * 12 = 36 inches

Type B:

4 feet = 4 * 12 = 48 inches

Let "t" be the number of years

For Type A, the equation would be:

36 + 15t [36 inches already and 15 inches per year]

For Type B, the equation would be:

48 + 10t [48 inches and 10 inches per year]

Now we equate and solve for "t", the time when both are same height:

$36 + 15t = 48 + 10t\\15t-10t=48-36\\5t=12\\t=\frac{12}{5}\\t=2.4$

Hence, after 2.4 years, both trees' heights would be same

7 0

4 years ago

The vertex of ∠ABC is A B C

DochEvi [55]

B. the middle letter in the name of the angle is always the vertex

6 0

4 years ago

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Write the equation of the line perpendicular to y=2/3 x−12 that passes through the point (4, -1) in slope-intercept form.

xenn [34]

Answer:

Step-by-step explanation:

perp. -3/2

y + 1 = -3/2(x - 4)

y + 1 = -3/2x + 6

y = -3/2x + 5

7 0

3 years ago

A researcher wants to investigate the effects of environmental factors on IQ scores. For an initial study, she takes a sample of

professor190 [17]

Answer:

The question is not complete. The full question and the solution is attached in the file below

Step-by-step explanation:

Download docx

docx

4 0

3 years ago

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