All categories

3 years ago

12,781 rounded to the nearest hundred?

1 answer:

6 0

12800
When rounding a number to the nearest hundred you look at the number in the hundreds place, in this case it the digit 7. To decide if you will be rounding it up to 8, or leaving it at 7 you need to look at the digit to the right of it, in this case there is an 8 in the tens place. It that digit is a 5 or greater you round up, if that digit is a 4 or less you leave it as it is. Since the digit is 8 and that is a five or greater you will round up to place an 8 in the hundreds place. The places to the right of the number place you are rounding become zeros.

You might be interested in

there are 657 lights on you set. on any given day 6 of them burn out and need to be replaced . if each light cost $45 how much d

Klio2033 [76]

Answer:

1890, total cost of lights per week

Step-by-step explanation:

The lights cost 45 dollars per bulb and 6 go out per day, 45×6=270

270 is the cost to replace the bulbs of one day.

270×7=1890. 1890 is the cost for a whole weeks worth of replacing these bulbs.

6 0

3 years ago

1. The height of a missile t seconds after it has been fired is given by h=4.9t^2+44.1t. How many seconds will it take for the r

asambeis [7]

Answer:

The rocket will take 4.5 seconds to reach its maximum height.

Step-by-step explanation:

The height of a missile t seconds after it has been fired is given by h=-4.9*t²+44.1*t

This function is a quadratic function of the form f (x) = a*x² + b*x + c. In this case a=-4.9, b=44.1 and c=0

To calculate how many seconds it will take for the rocket to reach its maximum height, I must calculate the maximum of the function. The maximum of a quadratic function is the vertex of the parabola. The x coordinate of the vertex will be simply: $x=\frac{-b}{2*a}$ . The y coordinate of the vertex corresponds to the function evaluated at that point.

In this case the x coordinate of the vertex corresponds to the t coordinate. In other words, by calculating the x coordinate of the vertex, you are calculating the maximum time t it will take for the rocket to reach its maximum height. So:

$t=\frac{44.1}{2*(-4.9)}$

t=4.5

The rocket will take 4.5 seconds to reach its maximum height.

7 0

2 years ago

HELP ASAP!!! For the cube, x represents a positive whole number. Find the value of x such that the volume of the cube and 6 time

jonny [76]

Volume = wlh=x^3
surface area= 6x^2
x^3=6x^2
Divide by ^2 on both sides
x=6

7 0

3 years ago

Plz hurry

Bezzdna [24]

N=-13/4 because you subtract 3/4 from -5/2

7 0

3 years ago

Read 2 more answers

Use the table from a random survey about the preferred service for streaming movies. Out of 750 people, how many would you expec

LiRa [457]

Answer:

The correct answer option is 192

Step-by-step explanation:

We are given the results of a random survey about the preferred service for streaming movies.

We are to find the number of people we would expect to prefer Company B.

Number of people using service B = 32

Total number of people = 125

Number of people expected to prefer Company B =32/125 x 750 = 192

3 0

2 years ago