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AVprozaik [17]
3 years ago
15

What is the rate of change between (1,15) (3,45)?

Mathematics
1 answer:
Ksivusya [100]3 years ago
3 0

Answer:

15

Step-by-step explanation:

Rate of change or slope or gradient of a line passes two points (x1, y1) and (x2, y2) could be calculated by:

(y2 - y1)/(x2 - x1)

=> Rate of change of the line passing (1,15) and (3,45):

(45 - 15)/(3 - 1) = 30/2 = 15

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Melodys family wants to go to Hawaii, which is a 3,700 mile airplane ride. Write the number of miles in scientific notation
jenyasd209 [6]

Answer:

3.7*10^3

Step-by-step explanation:

Step one:

given data

3,700 mile

In scienctific notation or in standard form  3,700 mile  is expressed as

3.7*10^3

7 0
3 years ago
so an athlete trains on a circular track of radius 40m and jogs 10 laps each day 5 days a week. how far dose he jog each week?
UkoKoshka [18]
Ok.  he jogs 10 laps in a day and each lap is 40 m so 10 times 40 is 400
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5 0
3 years ago
What are the coordinates of the vertex of the parabola with the equation y = x + 2x - 3?
loris [4]

Answer:

<em>The coordinates of the vertex are (-1,-4).</em>

Step-by-step explanation:

<u>Equation of the Quadratic Function </u>

The vertex form of the quadratic function has the following equation:

y-k=a(x-h)^2

Where (h, k) is the vertex of the parabola that results when plotting the function, and a is a coefficient different from zero.

We are given the function:

y=x^2+2x-3

We must transform the equation above by completing squares:

The first two terms can be completed to be the square of a binomial. Recall the identity:

x^2+2xy+y^2=(x+y)^2

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

Operating:

y=(x^2+2x+1)-4

The trinomial in parentheses is a perfect square:

y=(x+1)^2-4

Adding 4:

y+4=(x+1)^2

Comparing with the vertex form of the quadratic function, we have the vertex (-1,-4).

The coordinates of the vertex are (-1,-4).

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3 years ago
The sum of 16 and 20 is divided by the product of 6 and 2 , find the result​
kow [346]

The answer is 3

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3 years ago
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