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tekilochka [14]
3 years ago
7

F(1)=-1.5 f(n+1)=f(n)+0.5 what is f(10)?

Mathematics
1 answer:
prohojiy [21]3 years ago
8 0

Answer:

3.

Step-by-step explanation:

This is an arithmetic sequence with common difference d = 0.5 and first term a1 = -015.

10th term = a1 + (10 - 1)d

= -1.5 + 9*0.5

=  4.5 - 1.5

= 3.

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[{(-72)÷(-2)}2-(-7)]x(-10)
mote1985 [20]

Answer:

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Step-by-step explanation:

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3 years ago
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Write the equation of a line that is perpendicular to y=-2/7x+9 and passes through the point (4,-6)
Ulleksa [173]
This is in slope-intercept form, so you can think of it as being y=mx+b. Invert m (the slope) and flip its sign, and then substitute the x and y values in and solve for b. The answer is y=7/2x-20. 
6 0
3 years ago
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The perimeter of a square is 36<br>what is the area of the square?​
zmey [24]

Answer: 81 units²

Step-by-step explanation: To solve this problem, remember that the formula for the area of a square is 4s.

Therefore, since the perimeter of the given square is 36, we have 36 = 4s and dividing both sides by 4, 9 = s.

Now, remember that the formula for the area of a square is s² and since the length of a side of the given square is 9, we have (9)² or 81.

So the area of a square that has a perimeter of 36 is 81 units².

6 0
3 years ago
4.35 divided by 5? does anyone know??????
Dvinal [7]
.87 is correct you can always check your work with an online calculator. :)

5 0
3 years ago
A store pays $365.84 for a fountain. The store marks up the price by 10%.
Ann [662]

Answer:

The store marks up the fountain by adding $ 36.58 to its original cost, bringing its retail price to $ 402.42.

Step-by-step explanation:

Given that a store pays $ 365.84 for a fountain, and then the store marks up the price by 10%, to determine the amount of the mark-up the following calculation must be performed:

365.84 x 10/100 = X

3,658.4 / 100 = X

36,584 = X

36.584 + 365.84 = 402.424

Thus, the store marks up the fountain by adding $ 36.58 to its original cost, bringing its retail price to $ 402.42.

4 0
3 years ago
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