3 years ago

Each day she’s swim 720 m.how many kilometers does she swim each day ?

Mathematics

1 answer:

aleksley [76]3 years ago

8 0

0.72 use google for a converter

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A quote website includes a "Surprise me!" button that randomly selects a quote from its database. For every 4 quotes in the data

Damm [24]

Answer: 4 quotes

3.5 quotes

Step-by-step explanation:

Khan

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2 years ago

Find ij i need help with this

Nuetrik [128]

Answer:

IJ is going to be 5400.

Step-by-step explanation:

60*90= 5400.

90 is the right angle on J.

I is 60 degrees.

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2 years ago

Find the 11th partial sum of the summation of negative 7i plus 22, from i equals 1 to infinity.

marta [7]

I think you mean,

$\sum_{i=1}^{\infty}(7i+22)$

You can use the usual formula,

$S_{k}=\frac{k}{2}(a_1+a_k)$

That in this case is,

$S_{11}=\frac{11}{2}(29+99)=704$

Where I have used,

$a_k=7\cdot k +22$

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2 years ago

Tony is training to run a marathon. He has already run 2 miles today and is running additional miles at 6 miles per hour. Write

Minchanka [31]

I think its 8m/h or somethan but idrk. Like it doesnt specify how long it took him the run the 2 hours so idrk. Or it would be 2m/d + 6m/h with d=day

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3 years ago

Find the coordinates of the other endpoint of the segment, given its midpoint M and one

Molodets [167]

Answer:

P(2c - h, 2n - s )

Step-by-step explanation:

If there are two points (x1,y1) and (x2,y2) on the coordinate plane

then midpoint is given by (x1+x2)/2 , (y1+y2)/2

_________________________________________________

in the problem midpoint is m(c,n)

one point is Q(h,s)

let other point be P(x,y)

By using midpoint formula given above

for point P(x,y) and Q(h,s)

midpoint = (x+h)/2, (y+s)/2

also midpoint is m(c,n)

comparing m(c,n) with (x+h)/2, (y+s)/2

c = x+h/2

=> 2c = x+h

=> 2c - h = x

n = (y+s)/2

=> 2n = y+s

=> 2n - s = y

Thus, second endpoint is P(x,y) = P(2c - h, 2n - s )

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2 years ago