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IRINA_888 [86]
3 years ago
12

Why does: 5x+3x+2x = 10x and not 10xxx?

Mathematics
2 answers:
Helen [10]3 years ago
8 0
Because you are not adding the x's .When you add the coefficients, the variable comes along with it.
atroni [7]3 years ago
7 0
Because you are adding an amount of the same variable. They are like terms so you would combine them. If it was 10xxx it would be 10+3x. But, 5x+3x+2x is 10 because 3x+2x is 5 and 5x+5x is 10x. You do not add the actual x's together, just the amount that is shown.
Think of it as this way:
5x = x x x x x
3x = x x x
2x = x x
in total, there are 10 x's
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3 years ago
Suppose that a regression line for some data transformed with logarithms predicts that when x equals 4, log(y) will equal 3.331.
deff fn [24]

Option D

The regression line predicts that at x = 4, y equals 2143

<em><u>Solution:</u></em>

Given that when x equals 4, log(y) will equal 3.331

To find: Find y when x equals 4

Since we have given that,

When x = 4,

\text{ log } y = 3.331

We need to find the value of 'y' when x = 4

log_{10}y = 3.331

Since it is logarithmic function with base 10, Raise to power of 10 on both sides,

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7 0
3 years ago
Solve the equation y+(-6)=-9
Anni [7]
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7 0
3 years ago
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The map shows the location of the airport and a warehouse in a city. Though not displayed on the map, there is also a factory 10
LekaFEV [45]
Step 1
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the coordinates of the warehouse are (39,-52)
coordinates of the factory------> (39,-52+104)------> (39,52)

step 2

find the distance warehouse to airport
let
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B coordinates of airport---------> B(-39,52)
C coordinates of factory-------> C(39,52)

distance AB=</span>√[(52+52)²+(-39-39)²]------> distance AB=130 miles
<span>
step 3
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B(-39,52)
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<span>the total number of miles=distance AB+distance BC---> 130+39
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</span>
the answer is
169 miles
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3 years ago
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Answer:

a.42/98 b.52/98

Step-by-step explanation:

its easy

3 0
3 years ago
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