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Elanso [62]
3 years ago
12

A student would like to estimate the proportion of students at his school who have lunch during period 4. To do so,

Mathematics
1 answer:
iren2701 [21]3 years ago
8 0

Answer: sample

Step-by-step explanation:

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A weather station on the top of a mountain reports that the temperature is currently 0 degrees Celsius and has been falling at a
madam [21]

Answer:

The temperature of the weather station was 3 degrees Celcius an hour earlier.

Step-by-step explanation:

We can say that the weather an hour ago should be represented with the variable - x.

From the problem, we know that the temperature of the station falls at a rate of -3 degrees per hour. This means that for every hour, the temperature of the place will go down by about 3 degrees Celsius.

If the temperature of the weather station is currently 0 degrees Celsius, to find its temperature an hour earlier, it means that we will need to add 3 degrees to its current temperature, because that is what must have lost in one hour.

i.e x = 0 + 3 = 3 degrees Celcius.

This means that the temperature of the weather station was 3 degrees Celcius an hour earlier.

5 0
3 years ago
How many cm3 is in 1 liter? i just wondering...
natali 33 [55]
Hello,

1 liter of water in normal conditions has a volume of 1dm^3=(1dm)^3=(10 cm)^3=10^3 cm^3=1000 cm^3

4 0
4 years ago
Miguel measured a house and its lot and made a scale drawing. The backyard, which is 40 feet wide in real life, is 20 inches wid
viva [34]

Answer:

Can you please post a picture?!

Step-by-step explanation:

4 0
3 years ago
Use the distance formula to answer the question:<br> What is the distance between (5,9), (1, 6)?
joja [24]

Step-by-step explanation:

The formula is Distance=√(x2-x1)²+(y2 -y1)²

x1 is 5, x2 is 1, y1 is 9, y2 is 6

D = √( 1-5)² +(6-9)²

D = √(-4)²+(-3)²

D = √16+9

D = √25

D = 5 units

3 0
2 years ago
What is the value of n in the equation 2.3 × 10 9power = (1 × 10 3power)(2.3 × 10n)
Amanda [17]
Hello,

2.3 x 10^9 = ( 1 x 10^3) ( 2.3 x 10^n) 

Solution:

Take the logarithm of both sides of the equation to remove the variable from the exponent. 

n=6


Faith xoxo
7 0
3 years ago
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