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4 years ago

Can someone plz help me i will thank u so much

Mathematics

1 answer:

klemol [59]4 years ago

4 0

Answer:

2 hours and 29 minutes

Step-by-step explanation:

if you change 9 hours to minutes you get 540 plus 17 equals 557. if you turn 6 hours to minutes it's 360 plus 48 equals 408. 557 minus 408 equals 149 minutes. Now if you convert it to hours and minutes you need to divide by 60. So if you divide it you get 2 hours and 29 minutes. hope this helped! :)

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In construction, floor space must be planned for stair cases. If the vertical distance between the first and second floors it's

Nadya [2.5K]

Answer:

665.73 cm or 6.65 m

Step-by-step explanation:

The first thing is to pass the distance in meters to centimeters, knowing that 1 meter equals 100 centimeters:

3.6m * 100cm / 1m = 360cm

Now we calculate the number of steps:

360 cm / 18 cm = 20 steps

Now each step measures 28 cm, therefore:

20 * 28 = 560 cm

To calculate the length of the ladder, we must apply Pythagoras:

c ^ 2 = a ^ 2 + b ^ 2

a = 360; b = 560

replacing:

c ^ 2 = 360 ^ 2 + 560 ^ 2

c ^ 2 = 443200

c = 665.73

665.73 cm in meters would be 6.65 meters.

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3 years ago

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crimeas [40]

Answer:

A formula that finds a term using the previous term

Step-by-step explanation:

It's just terminology. Don't beat yourself up over it.

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4 years ago

Solve each equation by taking square roots 2n^2 -8=-33

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