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2 years ago

11

The times for 5 runners in a 30-meter dash were 6.44 seconds, 6.2 seconds, 6.04 seconds, 7.14 seconds, and 6.48 seconds. Wr

ite these times from fastest to slowest.

1 answer:

Scorpion4ik [409]2 years ago

4 0

Answer:

329842384097

Step-by-step explanation:

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You have a wire that is 38 cm long. you wish to cut it into two pieces. one piece will be bent into the shape of a square. the o

erica [24]

Circumference + perimeter =38
x = circumference of circle
find r in terms of x
2 $\pi$ r=x
r= $\frac{x}{2 \pi }$
Area= $\pi$ r^2
so..
A= $\pi$ ( $\frac{x}{2 \pi }$ )^2
= $\pi$ ( $\frac{x^{2} }{4 \pi ^{2} }$ )
= $\frac{x^{2} }{4 \pi }$

(38-x) is perimeter
then
$\frac{38-x}{4}$
( $\frac{38-x}{4}$ )^2
$\frac{x^{2} }{4 \pi }$ + ( $\frac{38-x}{4}$ )^2
then you graph it and it equals
16.716 cm the circumference of the circle

6 0

2 years ago

Write the equation of a line passing through (-4.3) and perpendicular to -6x + 4y =-12.

sergij07 [2.7K]

Answer:

y=-2/3*x+1/3

Step-by-step explanation:

-6x+4y=-12

put into y=mx+b line equation

4y=6x-12

y=(6/4)x-(12/4)

y=(3/2)x-4

slope is 3/2

to find perpendiular line slope take the negative inverse.

-(2/3) = slope of perpendicular line

use line equation and solve for y-intercept (b)

3=(-2/3)*(-4)+b

3=8/3+b

b= 9/3-8/3 = 1/3 : 3 = 9/3 to allow for subrtaction of fractions.

3 0

2 years ago

If a car can go from 0 to 60 mi/hr in 8.0 seconds, what would be its<br> acceleration ?

tresset_1 [31]

If a car goes from 0 to 60 mph in 8.0 seconds, its acceleration would be 60/8 which is equal to 7.5mph/sec

6 0

2 years ago

If the surface area of a cube is 54 cm?, what is its volume?

LenKa [72]

Answer:

27

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Need help plzzzzz :>

Vadim26 [7]

Answer:

2. H

3. A I believe, because 1 and 7 seem to be the same angle.

I dont know the rest

4 0

2 years ago

Read 2 more answers