A way to write numbers by showing the value of each digital

Mathematics

1 answer:

8_murik_8 [283]3 years ago

6 0

Https://www.youtube.com/watch?v=Ch4knpVSJcE

In our decimal number system, the value of a digit depends on its place, or position, in the number. Each place has a value of 10 times the place to its right......:)

A number in standard form is separated into groups of three digits using commas. Each of these groups is called a period....:) I also put a link down that may help.....its a video on how to do it! I hope this helps!

You might be interested in

Given : If You are at least 25 years Old Then you can rent a car

KIM [24]

Answer:

Law of Syllogism

Step-by-step explanation:

4 0

3 years ago

Can someone help me for this question please? I just keep getting wrong answer! Pls someone explain to me step by step! ASAP!!!

Kobotan [32]

Answer:

84 feet

Step-by-step explanation:

This problem involves several steps. The first step is to realize that the given figure does not show the required number of vertical stringers. It shows 5, but there will be 7 of them. The given diagram is helpful in that it shows a vertical stringer on the centerline of the arches.

The second step is to write a function that will tell you how long the stringer will be. I find it convenient to write the equation for an arch shape such as this using the parent function h(x) = 1-x^2. This parent function gives an arch of height 1 and width 1 from center (a total width of 2). You want an arch that is 16 ft high and 40 ft wide (one side from center), so you must scale this parent function both horizontally (by 40) and vertically (by 16). It becomes ...

H(x) = 16(1 -(x/40)^2)

The taller arch is twice this height, so the length of a vertical stringer at position x is

vertical length = 2H(x) -H(x) = H(x)

That is, the function H(x) we defined can be used to find the length of the stringers.

The third step is to find the stringer lengths. It can save some energy if you realize that the problem is symmetrical, so that the stringer at x=-30 is the same length as the one at x=30. We need to find stringer lengths every 10 feet from -40 feet to +40 feet. Of course, the ones at ±40 feet are zero length, because that is where the two arches meet.

H(-30) = 16(1 -(3/4)^2) = 7

H(-20) = 16(1 -(1/2)^2) = 12

H(-10) = 16(1 -(1/4)^2) = 15

H(0) = 16

Then the fourth step is to add up the stringer lengths, rounding the result as required.

7 +12 +15 +16 +15 +12 +7 = 16 + 2(34) = 84 . . . . feet (no rounding needed)

Finally, you need to answer the question asked:

The sum of vertical stringer lengths is 84 feet.