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lozanna [386]
2 years ago
15

Research studies show that the relationship between the tire pressure of a vehicle’s tires and the life of the tires is quadrati

c. The following table shows the recommended tire pressure of a car’s tires (in pounds per square inch) and its anticipated tire life (in thousands of miles).
Tire Pressure Tire Life
29 46.8
32 57.6
34 58.8
36 60.0
38 58.8
40 57.0
42 52.8
Use a graphing or online regression calculator to find the quadratic function of best fit for this set of data. What is the value of a in this function?

-0.240947
-2.40947
-0.00240947
-0.0240947
Mathematics
1 answer:
vlabodo [156]2 years ago
4 0

Answer:

-2.40947

Step-by-step explanation:

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The larger of two numbers is 12 more than the smaller number. if the sum of the two numbers is 74 find the two numbers.
STatiana [176]
Hi there!

Let th' two number be ' a ' and ' b ' [ a > b ]

According to th' question :-

→ The largest of two numbers is 12 more than the smaller number.

a = 12 + b ---(i)

→ Sum of the two numbers is 74.

a + b = 74

b = 74 - a ---(ii)

Substitute th' value of ' b in Eqn. :-

a = 12 + (74 - a)

a = 86 - a

a + a = 86

2a = 86

a = \dfrac {86}{2} = 43

Now,
Substitute th' value of ' a ' in Eqn. (ii)

b = 74 - b

b = 74 - 43

b = 31

Hence,
The required answer is :-

• The smaller number is 31
• The largest number is 43

~ Hope it helps!

7 0
3 years ago
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The area of the rectangle is 4000 square meters. What is the perimeter of the​ track? Use 3.14 for pi.
Roman55 [17]
(3.14)x (4000)2
3.14 ) X (8000

Is 25,120
8 0
3 years ago
3.14•8.7•8.7•14.7 <br> Round to the nearest hundreds
Trava [24]

Answer:

3493.70

Step-by-step explanation:

if you multipy all these in a calculator you get a long number, look at the third digit behind the decimal, if its 5+ then make the second digit behind the decimal one number higher. If its 4 or under than keep the number the same. To round, cut off all the digits behind the second digit thats past the secimal

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Yellow Cab Taxi charges a $1.75 flat rate in addition to $0.65 per mile. Katie has no more than $10 to spend on a ride. How many
spayn [35]
About  miles. 

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12 miles.
3 0
2 years ago
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What are 2 methods of used of collecting data?
wel
There are a variety of methods of data collection. 2 examples include<span> observations, textual or visual analysis (eg from books or videos) and interviews (individual or group).</span>
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