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2 years ago

When you round a number, which digit in the number helps you decide to round up or down?

1 answer:

3 0

When you round a number, the digit in the number that helps you decided to round up or down, is one digit to the right of the digit, you picked to round.

Rule -
Pick a digit to round up in the number. Move one space to the right of the digit you picked. Then, if the digit to the right is at least 5, meaning that if it’s above or equal to 5, then round the digit you picked up by 1. However if the digit to the right is lower than 5, then the digit you picked stays the same. Remember that anytime you round, either down or up, anything to the right of the digit, you picked becomes 0.

For example, let’s use the number, 1087, and we picked the digit 8. We have to look at the digit to the right, of the digit we picked, which is 7, to see if we need to round up or down. Since the number is above 5, then we have to round 8 up. Anything to the right of the 8 become 0.

Hope this helped!

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4x=500+96.plz send answer fast

Brut [27]

Are you solving for x or finding the slope

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3 years ago

Line AB and CD have the following points: A(2, 4), B(9, 8), C(-1, 2), and D(3, -5). Are the lines parallel, perpendicular, or ne

inysia [295]

We are given coordinates of A, B, C and D :

A(2, 4), B(9, 8), C(-1, 2), and D(3, -5).

Now, we need to find the slopes of AB and CD.

Slope of AB is :

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(2,\:4\right),\:\left(x_2,\:y_2\right)=\left(9,\:8\right)$

$m=\frac{8-4}{9-2}$

$m=\frac{4}{7}$ .

Slope of CD is:

$m=\frac{-5-2}{3-\left(-1\right)}$

$m=-\frac{7}{4}$ .

<em>Slope of CD is negative reciprocal of slope of slope of AB. </em>

<h3>Therefore, lines AB are CD are perpendicular.</h3>

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3 years ago

Read 2 more answers

Lauren is planning a field trip. She has 79 students and 12 chaperones attending. Each bus can hold 32 people. How many busses w

zaharov [31]

I would think 3? it should be 3 because 32*2=64 which isn’t everyone 32*3 is 96
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3 years ago

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Solve the triangle.<br><br> B = 36°, a = 38, c = 18

Lady_Fox [76]

Solving the triangle requires solving all of the dimensions involve in the polygon given. We are given an angle, and two of the sides of the triangle. We can solve the third side by using the law of cosines.

b² = a²+c²-2accos(B)
b² = 38² + 18² - 2(38)(18)cos(36)
b = 25.7

We use the law of sines to solve for the angles.
a/sinA = b/sinB
38/sinA = 25.7/sin36
A = 60.4°
C = 180 - 36 - 60.4 = 83.6°

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3 years ago

The traffic engineer for a large city is conducting a study on traffic flow at a certain intersection near the city administrati

barxatty [35]

Answer:

e) The number of minutes for a car to get from the intersection to the administration building

Step-by-step explanation:

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For example, the statistics of a group of people form continuous data, but the number of people in that group form discrete data.

Inglés

In this case, counting items such as cars, bicycles, people, are considered discrete data. They exclusively take integer values.

But time data can take continuous values.

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3 years ago