Suppose the foot of a 12-foot ladder was placed 4 feet from a building how high up on the building would the top of the ladder reach

Answers

Answer 1

Answer:

Use the pythagorean theorem.

The foot of the ladder is 4 feet away from the building (leg 1)

The height of the building is leg 2

The ladder, which would be at an angle, is 12 feet. So our hypotenuse would be 12. The equation for this would be a²+4²=12²

We can then begin to solve

a² + 16 = 144

a² = 128

a=11.31

So, our answer is: The top of the ladder reaches the building at 11.31 feet up

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How to solve and graph this equation ?

Answers

Start by adding 2y so that the equation becomes 2y= -3x-4 then divide by 2 on both sides so it cancelled out. (This if for if your trying to get it in y=mx+b form)

What's 30 plus 30 divided with 3 ?

Answers

60/3= 20
Hope this helps

How do you write 8.638 in word form

Answers

Eight and six-hundred thirty eight thousandths.

Hope that helps :)

Eight and six hundred thirty eight thousandths

How do you calculate elapsed time?

Answers

count forward on a clock.
if you started cleaning at 9:00 and finished at 5:00 the elapsed time would be 8 hours.
elapsed time is the time that passes from the start of an activity to the end of an activity.

Elapsed time is the amount of time taken in order todo a certain action. For example, i you were to set off for school at exactly 9:00am and arrive back at 3pm, then you would have been at school for 6 hours. In other words, the elapsed time was 6 hours.
Hope this helped.

in a class 60% of the students are girls. There are 18 girls in the class. How many students are in the class

Answers

60 18
— = —
100 x

to solve the percent proportion :
100 x 18 = 1800
1800 ÷ 60 = 30
there are 30 students in the class.

Which equation represents the line that passes through points (0, 6) and (2, 0)?y=-3x+2
y=-3x+6
y=-3x+2
y=-3x+6

Answers

Answer:

$y=-3x+6$

Step-by-step explanation:

Equation of line passing through two points:

$Equation\ of\ line\ passing\ through\ two\ points\ (x_1,y_1)\ and\ (x_2,y_2)\n\n(y-y_1)=((y_2-y_1))/((x_2-x_1))(x-x_1)\n\n(x_1,y_1)=(0,6)\n\n(x_2,y_2)=(2,0)\n\n(y-6)=((0-6))/((2-0))(x-0)\n\ny-6=(-6)/(2)(x-0)\n\ny-6=-3(x-0)\n\ny-6=-3x\n\ny=-3x+6$

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