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3 years ago

Rajan ran 15km in 90 mins. How hast did he run.

Mathematics

2 answers:

VikaD [51]3 years ago

8 0

2700 bc in everminutes he would run 920

vekshin13 years ago

4 0

Answer:

Step-by-step explanation:

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Which is the graph of g(x) = 2x – 1 + 3? On a coordinate plane, an exponential function has a horizontal asymptote at y = 3 and

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Graph D

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You are working on the phone in the office. A woman orders 6 tickets for £134.10. How much does each ticket cost?

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22,35 £

Step-by-step explanation:

How much does each ticket cost ?

134,10 : 6 = 22,35 £

134,10 : 6 = 22,35

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3 years ago

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It takes Betty 9 h to bake a cake and 8 h to knit a sweater. What is her opportunity cost of 1 cake in terms of knitted sweaters

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3 years ago

Find the equation of a line perpendicular to y - 12 = 2x – 8 that passes through the point (2, 3). (answer in slope-intercept fo

Alla [95]

Answer:

$\displaystyle y=-\frac{1}{2}x+4$

Step-by-step explanation:

Equation of a Line

We can find the equation of a line by using two sets of data. It can be a pair of ordered pairs, or the slope and a point, or the slope and the y-intercept, or many other combinations of appropriate data.

We are given a line

$y - 12 = 2x -8$

And are required to find a line perpendicular to that line. Let's find the slope of the given line. Solving for y

$y = 2x +4$

The coefficient of the x is the slope

$m=2$

The slope of the perpendicular line is the negative reciprocal of m, thus

$\displaystyle m'=-\frac{1}{2}$

We know the second line passes through (2,3). That is enough information to find the second equation:

$y-y_o=m'(x-x_o)$

$\displaystyle y-3=-\frac{1}{2}(x-2)$

Operating

$\displaystyle y=-\frac{1}{2}(x-2)+3$

Simplifying

$\displaystyle y=-\frac{1}{2}x+4$

That is the equation in slope-intercept form. Intercept: y=4

8 0

3 years ago

Write the standard equation of the circle with the given center and passes through the given point. Center (7,-2); Point= (1,-6)

vodomira [7]

Answer:

(x - 7)² + (y + 2)² = (2√13)²

Step-by-step explanation:

We already know that the center is at (7, -2), but must find the radius. The radius is the distance between the points (7, -2) and (1, -6):

r = √ [6² + 4²] ) = √(36 + 16) = √52 = √4√13 = 2√13.

Then the desired equation is (x - 7)² + (y + 2)² = (2√13)²

6 0

3 years ago

Rajan ran 15km in 90 mins. How hast did he run.​

Rajan ran 15km in 90 mins. How hast did he run.