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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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13. This shows a part of a multiplication table. Find the
IRISSAK [1]

Answer:5x7=35

8x5=40

Step-by-step explanation: well first think of what number can divide into 40 and 35 and come out as 5. So for example 35 divided 7 equals 5 and 40 divided 8 = 5 so the missing number is either 8 or 7

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3 years ago
What is (-7)^2 × (-7)?<br><br> I will mark the Brainliest, thank, and comment!<br><br> Thank you!
belka [17]

Answer:

The answer is -343.

Step-by-step explanation:

If a term doesn't have an exponent, it's considered that the exponent is 1 (so basically, (-7)² x (-7)^1.

Multiply the terms with the same base (by adding the exponents - (-7)²+1<- (as the exponential value) (couldn't find the sign so sorry.)

Add the numbers: (-7)³

A negative base raised to an odd power equals a negative: -7³

Write the problem out: -(7 x 7 x 7).

Multiply: -343

3 0
3 years ago
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marin [14]

Answer:

ooh bruh it pink

Step-by-step explanation:

7 0
3 years ago
Simultaneous equation <br> Find x and y <br> 2x+y=5<br> X+3y=5
snow_tiger [21]
x+3y=5 \ =>\boxed{x=5-3y} \\\\ 2x+y=5 \\\\ 2(5-3y)+y=5 \\\\10-6y+y=5 \\\\ -5y=5-10 \\\\ -5y=-5 \ |:(-5) \\\\ \boxed{y=1} \\\\ x=5-3*1 \\\\ x=5-3 \\\\ \boxed{x=2}
6 0
3 years ago
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2/5 ÷ -2/5 plzz answer 20 points​
Olegator [25]

Answer:

-0.04

Step-by-step explanation:

5 0
2 years ago
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