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2 years ago

An= a +(n-1) (-2) Find a10 for the sequence that follows the rule

Mathematics

2 answers:

alexdok [17]2 years ago

3 0

Step-by-step explanation:

a10 = a + (10-1) (-2)

a10 = a-18

Westkost [7]2 years ago

3 0

Answer:

Step-by-step explanation:

<h3 /><h3 /><h3> HOPE THIS HELPS YOU. </h3>

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What 2 numbers multiply to be -14 and add to be -3

Svetach [21]

Xy = -14
x + y = -3

$xy = -14$
$\frac{xy}{x} = \frac{-14}{x}$
$y = \frac{-14}{x}$

$x + y = -3$
$x + \frac{-14}{x} = -3$
$\frac{x^{2}}{x} + \frac{-14}{x} = -3$
$\frac{x^{2} - 14}{x} = -3$
$x^{2} - 14 = -3x$
$x^{2} + 3x - 14 = 0$
$x = \frac{-(3) \± \sqrt{(3)^{2} - 4(1)(-14)}}{2(1)}$
$x = \frac{-3 \± \sqrt{9 + 56}}{2}$
$x = \frac{-3 \± \sqrt{65}}{2}$
$x = \frac{-3 \± 8.06}{2}$
$x = -1.5 \± 4.03$
$x = -1.5 + 4.03$ $or$ $x = -1.5 - 4.03$
$x = 2.53$ $or$ $x = -5.53$

  x + y = -3
2.53 + y = -3
- 2.53 - 2.53
  y = -5.53
  (x, y) = (2.53, -5.53)

x + y = -3
  -5.53 + y = -3
+ 5.53   + 5.53
  y = 2.53
  (x, y) = (-5.53, 2.53)

The two numbers that multiply to -14 and add up to -3 are -5.53 and 2.53.

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3 years ago

Explain the relationship between the area and the radius of a circle.

Bess [88]

Area of a Circle: The area of a circle is the amount of space the circle takes up. To compute the area of a circle, we use the formula a=πr^2 where r is the radius of the circle.

Radius: The radius of a circle is the distance from the center of the circle to any point on the circle.

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2 years ago

Which of these people had balanced their checkbook correctly. Gary: the balance in his check register is $500 and the balance in

otez555 [7]

Gary should be the correct choice because when you balance their checkbook correctly you should have a balanced or equal amount in both your check register and your bank statement.

Good luck! Please let me know if I have chosen the wrong answer. All though I am very confident in my answer.

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3 years ago

Read 2 more answers

Solve sin x + 2 sin x cos X = for 0°

solniwko [45]

Answer:

Step-by-step explanation:

hello :

sin x + 2 sin x cosx = 0 equivalent to : sinx(1+2cosx) =0

sinx=0 means : general solution is : x= kπ....k in Z

1+2cosx=0 means : cosx= -1/2 general solution is : x= ±π/6+kπ...k in Z

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3 years ago

All rectangles have four right angles and opposite sides that are equal in length and parallel.

Paraphin [41]

Answer:

C. The bottom answer.

Step-by-step explanation:

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