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Gala2k [10]
3 years ago
13

The record high temperature in January was 18 degrees. The record low temperature was –7 degrees. What is the amount of change b

etween the high and low temperatures
Mathematics
1 answer:
vodka [1.7K]3 years ago
6 0

Answer: 25^{\circ}

Step-by-step explanation:

Given

The highest temperature recorded is 18^{\circ}

The lowest temperature recorded is -7^{\circ}

The amount of change between the high and the low temperatures is

\Rightarrow 18-(-7)=18+7\\\Rightarrow 25^{\circ}

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What is the GCF of 525, 135, 750
Ede4ka [16]

Answer:

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3 years ago
A student repeatedly measures the mass of an object using a mechanical balance and gets the following values: 560 g, 562 g, 556
MrRissso [65]

Answer: 2.76 g

Step-by-step explanation:

The formula to find the standard deviation:-

\sigma=\sqrt{\dfrac{\sum(x_i-\overline{x})^2}{n}}

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Then,  \overline{x}=\dfrac{\sum_{i=1}^{10} x_i}{n}\\\\\Rightarrow\ \overline{x}=\dfrac{560+562+556+558+560+556+559+561+565+563}{10}\\\\\Rightarrow\ \overline{x}=\dfrac{5600}{10}=560

Now, \sum_{i=1}^{10}(x_i-\overline{x})^2=0^2+2^2+(-4)^2+(-2)^2+0^2+(-4)^2+(-1)^2+1^2+5^2+3^2\\\\\Rightarrow\ \sum_{i=1}^{10}(x_i-\overline{x})^2=76

Then, \sigma=\sqrt{\dfrac{76}{10}}=\sqrt{7.6}=2.76

Hence, the  standard deviation of his measurements = 2.76 g

6 0
3 years ago
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