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Paul [167]
4 years ago
8

An international data plan charges $10.00

Mathematics
1 answer:
Elza [17]4 years ago
7 0

Answer:

y = 2.50x + 10

Step-by-step explanation:

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Find the difference. Write your answer in standard form. ( 3x3 + x-4) - (4x² + 2x - 5) The difference is?​
lukranit [14]

Answer:

Step-by-step explanation:

3x³ + x - 4 - (4x² + 2x - 5) =  3x³ + x - 4 - 4x² - 2x + 5

Now combine like terms

                                        = 3x³ - 4x² + <u>x - 2x</u>  <u>- 4 + 5</u>

                                       = 3x³ - 4x² -x + 1

4 0
3 years ago
Read 2 more answers
A speedometer has a percent error of 10%. The actual speed of the car is 40 mph. Select from the drop-down menus to correctly co
rodikova [14]

Answer

Answer

The speedometer is likely to show the speed is either 36.0 mph or 44.0 mph.        

To prove

Formula

Percentage\ error = \frac{error\times 100}{Exact\ value}

Where error = |Approx value - Exact value |

First case

As given

A speedometer has a percent error of 10%. The actual speed of the car is 40 mph.    

Here

Percentage error = 10%

Exact value = 40 mph

error = - (Approx value - Exact value )

          = - (Approx value - 40 )

          = - Approx value + 40

Put in the formula

10 = \frac{(-Approx\ value + 40)\times 100}{40}

400 = {(-Approx\ value + 40)\times 100}

\frac{400}{100} =-Approx\ value + 40      

\4 =-Approx\ value + 40      

Thus

Approx value = 40 - 4

Approx value = 36 mph

Therefore Option (b) is correct .

Second Case

error =  (Approx value - Exact value )

          =  (Approx value - 40 )

          =  Approx value - 40

Put in the formula

10 = \frac{(Approx\ value - 40)\times 100}{40}

400 = {(Approx\ value - 40)\times 100}

\frac{400}{100} = Approx\ value - 40      

\4 = Approx\ value - 40      

Thus

Approx value = 40 + 4

Approx value = 44 mph

Therefore Option (c) is correct .

4 0
3 years ago
Slope and y intercept of y+10x=2
marissa [1.9K]
Slope is -10x
Y-intercept is 2
5 0
3 years ago
Lines l and m are parallel to one another and cut by and cut by transversals s and t
Lerok [7]

Answer:

you got parallel.  the one look like a x is insterseting  

Step-by-step explanation:

60+40=100

3 0
2 years ago
The median rainfall during a spring storm in the lowlands is about 4 mm less than a spring storm in the highlands. The mean rain
mariarad [96]
There is a difference because in the spring, there may be more days of rain, therefore that would increase the mean for the spring compared to the other days. 
5 0
3 years ago
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