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3 years ago

What effect does multiplying a number by 1/10 have on the number?

Mathematics

2 answers:

antoniya [11.8K]3 years ago

8 0

$x \times \frac{1}{10} = \frac{x}{10}$

Divides it by 10.

Galina-37 [17]3 years ago

3 0

Answer:

It moves the decimal point one digit to the left

Step-by-step explanation:

You divide it by 10, or multiply by one tenth. For example:

$50*\frac{1}{10}=50*0.1=5$ . Effectively, you move the decimal point one place to the left.

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1 year ago

Write the equation of the line passing through points ( -2,-5) and (1,1)

Dennis_Churaev [7]

Answer:

The equation of the line is:

$y=2x-1$

Step-by-step explanation:

Given the points

(-2, -5)

(1, 1)

Finding the slope between the points

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-2,\:-5\right),\:\left(x_2,\:y_2\right)=\left(1,\:1\right)$

$m=\frac{1-\left(-5\right)}{1-\left(-2\right)}$

$m=2$

We know the slope-intercept form of the line equation

$y=mx+b$

where m is the slope and b is the slope-intercept form

substituting the value m=2 and the point (-2, -5) to find the b-intercept

$y=mx+b$

-5 = 2(-2) + b

b = -5+4

b = -1

Now, substituting m=2 and b=-1 in the slope-intercept form to get the equation of a line

y=mx+b

y=2x+(-1)

y=2x-1

Thus, the equation of the line is:

$y=2x-1$

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2 years ago