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igor_vitrenko [27]
3 years ago
9

The mean temperature for the first 7 days in January was 6 °C.

Mathematics
1 answer:
balandron [24]3 years ago
3 0

Answer:

6.875° C

the mean of a set of data is calculated using

mean =

For the first 7 days the mean is 8 and the count = 7

8 =  ( cross- multiply )

sum = 8 × 7 = 56

Add on the temperature on the 8 th day to the sum and divide by 8 for mean

sum = 56 - 1 = 55

mean =  = 6.875° C

2nd question

Height of marble from the ground

An independent variable is the variable in an experiment that you change to see if it has an effect on the dependent variable. In this case, Jack wanted to see whether the position of the marble on the ramp (which would be the height) has an effect on the kinetic and potential energy of the marble, then the height would be the independent because it is what is being changed.

The dependent would be the kinetic and potential energy and the constant would be the type of marble.

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amm1812
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This is because the proportion of frosting to food coloring is 1:4, and if the answer to A is simplified (50:200), the ratio would be the same.
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3 years ago
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Mrac [35]

Answer:

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Step-by-step explanation:

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For finding the value of x we have to square both side

On squaring both side

We done squaring both side for easy simplification

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5 0
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Bingel [31]
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natali 33 [55]
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6 0
3 years ago
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Answer:

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Step-by-step explanation:

<u>We need to calculate the fixed and variable cost (per mile) of renting a car. To do that, we will use the high-low method:</u>

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