Please add a number line if you can

When subtracting decimals with the same sign you

Veronika [31]

Answer:

subtract

Step-by-step explanation:

let's say 1.1-1.1 same sign? yea. subtract.

6 0

3 years ago

1) Classify the following attributes as binary, discrete, or continuous. Also classify them as qualitative (nominal or ordinal)

Viktor [21]

Answer:

a) Time in terms of AM or PM: Binary, qualitative and nominal (binary attributes are considered nominal)

b) Brightness as measured by a light meter: Ratio, quantitative and continuous.

c) Brightness as measured by people's judgments: Discrete, qualitative and ordinal (assuming they're chosen discretely)

d) Angles as measured in degrees between 0 and 360: Ratio, quantitative and continuous.

e) Bronze, Silver, and Gold medals as awarded at the Olympics: Qualitative, discrete and ordinal.

f) Height above sea level: Quantitative, continuous, ratio/interval (depending if it's seen as an arbitrary origin).

6 0

3 years ago

Nat2105 [25]

Answer:

30 centimeters.

Step-by-step explanation:

The scale between the rectangles is 1 to 3, so the larger one is three times bigger than the smaller one, that is, all the sides of the rectangle are three times bigger.

So, We know that the formula to calculate the perimeter of a rectangle is:

P = 2L + 2W

Where P is the perimeter, L is the lenght and W is the width.

If the lenght and the width of the bigger rectangle are three times bigger, we have that its perimeter, related to the perimeter of the smaller rectangle, will be:

(bigger rectangle: P1, L1 and W1; smaller rectangle: P2, L2 and W2)

P1 = 2*L1 + 2*W1 = 2*3*L2 + 2*3*W2 = 3*(2*L2 + 2*W2) = 3*P2

If P1 = 90 centimeters, we have that:

90 = 3*P2 -> P2 = 30 centimeters.

The perimeter of the smaller rectangle is 30 centimeters.

7 0

3 years ago

The width of a human hair is 2 x 10-5 meters. The width of a piece of sand is 1.5 x 10¹ meters.

Elena L [17]

The difference in the widths, in meters, of the human hair and the piece of sand is $1.4998*10^{-1}$ m.