3 years ago

Round 5.456 to the nearest tenth of a mile.

Mathematics

1 answer:

Blababa [14]3 years ago

5 0

5. 4 is in the tenths place and it is under 5 so it rounds down to 5

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What is the net mass of sugar if the gross mass is 12.5kg and the empty container is 400g

hodyreva [135]

12.5 - 0.4 = 12.1 ^_^

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3 years ago

Will give brainlist

spayn [35]

Answer:

The answer is d i believe

Step-by-step explanation:

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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:-

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

The given data values : 560 g, 562 g, 556 g, 558 g, 560 g, 556 g, 559 g, 561 g, 565 g, 563 g.

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

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3 years ago

Solve the equation x/4+3=-6

charle [14.2K]

X/4 = -9

x/4 = -9/1

cross multiply

x = -36

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3 years ago

I will give you Brainiest if you are right.

Lilit [14]

Answer:

F. Six times a number less nine

This is the only one that doesn't make sense

Sorry if im wrong

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3 years ago

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