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2 years ago

In a 3/4 mile relay race,each runner runs 1/16 mile.How many runners are in the race?

Mathematics

1 answer:

photoshop1234 [79]2 years ago

6 0

12 runners will be needed for the race. 3/4 = 6/8 = 12/16

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How do you solve this

Dmitriy789 [7]

By definition of the trig functions,

$\sin30^\circ=\dfrac y{16}$

$\cos30^\circ=\dfrac x{16}$

We have $\sin30^\circ=\dfrac12$ , so $y=8$ , and $\cos30^\circ=\dfrac{\sqrt3}2$ , so $x=8\sqrt3$ .

Just to check: we should have

$x^2+y^2=16^2$

by the Pythagorean theorem. Indeed,

$8^2+(8\sqrt3)^2=4\cdot8^2=2^2(2^3)^2=2^8=(2^4)^2=16^2$

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3 years ago

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Harlamova29_29 [7]

Answer:

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2 years ago

Read 2 more answers

Tom bought 7 new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there are now

SVETLANKA909090 [29]

25x2=50-7=43
Tom started out with 43 baseball trading cards

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2 years ago

Write an equation of the line that is parallel to the line whose equation is 3y+7=2x and passes through point (2,6).

Sladkaya [172]

Answer:

Step-by-step explanation:

To find the equation of a parallel line, we first need to find the slope of 3y + 7 = 2x.

We need to find it because, if two lines are parallel, then that means they have the same slope.

The best way to do this is solve for y:

$3y+7=2x\\3y=2x-7\\y=\frac{2}{3}-\frac{7}{3}$

Due to the rule that in y = mx + b, m = the slope, we find that the slope is 2/3.

Now we use that slope in the same formula to find b of the line we're trying to find the equation for, and then we'll have our answer. We find b by plugging in (2, 6) for x and y:

$y = mx+b\\y=\frac{2}{3}x+b\\6=\frac{2}{3}(2)+b\\18=4+3b\\ 14=3b\\\frac{14}{3} = b$

So our line is:

$y=\frac{2}{3}x+\frac{14}{3}$

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3 years ago

I really need help someone please help

mario62 [17]

Answer:

7x-11

Step-by-step explanation:

the need is to solve iy

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2 years ago