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vlada-n [284]
2 years ago
12

The distance a spring will stretch varies directly with how much weight is attached to the spring. if a spring stretches 9 inche

s with 100 pounds attached, how far will it stretch with 90 pounds attached? round to the nearest tenth of an inch.
Mathematics
1 answer:
Tcecarenko [31]2 years ago
6 0
9/100 = x/90
Cross multiply to get 810 = 100x
Divide both sides by 100 to get x = 81 inches
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Find the period of the function y=3/2 tan(1/3^x)<br> A) π/3<br> B) π/6<br> C) 3 π<br> D) π
Anna71 [15]
C is the right answer because the period should be pi/(1/3), so the answer is 3pi
3 0
2 years ago
Tony and Ricky spend a certain amount of money from their accounts each week at a pet shelter. The table shows the relationship
andriy [413]
<span>Function 1:

Number of Weeks (x)          Amount Remaining (dollars) (y)

1                                           30
2                                           24
3                                           18
4                                           12

You find the rate of weekley rate of change by calculating the difference of the amont remaing between two weeks:

24 - 30 = - 6

18 - 24  = - 6

12 - 18 = - 6

As you see the rate of change is constant: - 6 dollars per week. 


The equation shows the relationship between the amount of money, y, remaining in Ricky's account and the number of weeks, x:

Function 2: y = –7x + 30 Which statement states and explains which function shows a greater rate of change?

The rate of change is the slope of the linear function, and this is the coefficient of the independent variable, x. Then the rate of change is - 7 dollar per week. Now you know that the two rates are constant and that the second function shows a steeper decreasing.


</span>
7 0
3 years ago
Read 2 more answers
Help please!!! Pre-calculus
Anvisha [2.4K]

Answer:

P ( 3, - pi/3 + 2 pi n) or P ( -3 , -pi/3 + pi(2 n +1))

Step-by-step explanation:

P ( 3, - pi/3)

We can circle 2pi n around the circle and be back at the same polar coordinate

P ( 3, - pi/3 + 2 pi n)

or we can flip the radius to a negative and add pi to the theta

P ( -3, - pi/3 + pi)

Then we can circle 2pi n around the circle and be back at the same polar coordinate

P ( -3 , -pi/3 + 2 pi n +pi)

P ( -3 , -pi/3 + pi(2 n +1))

6 0
3 years ago
You invest $1000 in a 5-year savings bond that pays 8% annual interest on the principal. How much total interest will you have e
atroni [7]
8% of 1000 = 80
8% of 1080 = 86.4
8% of 1166.4 = 93.31
8% of 1259.71 = 100.77
8% of 1360.48 = 108.8
$1469.28
Rounded: $1469
3 0
3 years ago
Which statement is true about the graphs shown? A) Only graph A represents a proportional relationship. B) Only graph B represen
tekilochka [14]

Answer:

I believe the answer is B.

Step-by-step explanation:

Because a proportional relationship is one where x is proportional (equal) to y, and Graph A does not fall into that category, and Graph B does, the answer should be B.

7 0
3 years ago
Read 2 more answers
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