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2 years ago

Share what you know about the properties of multiplication...!

Mathematics

1 answer:

3241004551 [841]2 years ago

3 0

Answer:

- changing the order of the numbers we are multiplying, does not change the product

Step-by-step explanation:

7 x 8 x 11 x 2 = 11 x 7 x 2 x 8

1232 = 1232

Hope it helps!

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Find the input (x) of the function y=5x-3 if the output (y) is 32

Alborosie

Answer:

x = 7

Step-by-step explanation:

Given

y = 5x - 3 ← equate 5x - 3 to 32

5x - 3 = 32 ( add 3 to both sides )

5x = 35 ( divide both sides by 5 )

x = 7 ← input

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2 years ago

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Which of the following allow electrons to flow easily?A. wood. B. plastic. C. copper. D. glass.

lisov135 [29]

Copper because that's what wires are made from and they help transport electricity

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2 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

6 0

3 years ago

Math Help PLEASE ASAP

enyata [817]

(B) Opposite sides are equal (otherwise, trapezoid, etc)

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2 years ago

What's 4.3 rounded to the nearest tenth

kolezko [41]

The answer would be 4.0

4 0

2 years ago

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