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kobusy [5.1K]
3 years ago
14

Solve the formula for n. A=a+d(n-1) evaluate n when A=25, a=5, and d=13

Mathematics
1 answer:
ser-zykov [4K]3 years ago
8 0

Answer:

Step-by-step explanation:

You;ll run into this formula a lot. Make sure you study it carefully.

A = 25

a = 5

d = 13

Find n

25 = 5 + 13*(n- 1)

20 = 13(n - 1)

This isn't going to work out. 20/13 does not give a whole number which it should.

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6x²+11x-2 help me fast​
Mekhanik [1.2K]

Answer:

(6x-1)(x+2)

Step-by-step explanation:

6x^2 = (6x  (x

(6x -1)(x+2)

6x * x = 6x^2

6x * 2 = 12x - 1x = 11x

-1*2 = -2

6x^2 + 11x - 2

8 0
3 years ago
Solve |2x - 1| + 3 = 6.
umka21 [38]

Answer:

x =2                         x = -1

Step-by-step explanation:

|2x - 1| + 3 = 6.

Subtract 3 from each side

|2x - 1| + 3-3 = 6-3

|2x - 1|= 3

An absolute value has two solutions, one positive and one negative

2x-1 =3                   2x -1 = -3

Add 1 to all sides

2x-1+1 =3+1             2x-1+1 = -3+1

2x = 4                      2x =-2

Divide by 2

2x/2 = 4/2                 2x/2 = -2/2

x =2                         x = -1

5 0
4 years ago
Read 2 more answers
Does anyone understand this one? I am a little lost.
Harlamova29_29 [7]

Answer:

The graph is decreasing

Step-by-step explanation:

Starting at -1,  the graph goes down to its value at 1

The graph is decreasing

6 0
3 years ago
Lightning strikes the earth more than 60 times per second. How many times would it strike in 3 minutes 15 seconds
Artist 52 [7]

Answer: 11,700 times

Step-by-step explanation:

First find the number of seconds in 3 minutes 15 seconds.

Each minute is 60 seconds so 3 minutes would be:

= 3 * 60

= 180

Add the 15:

= 195 seconds

Lightning strikes more than 60 times per second so we shall use 60 times

= 60 * 195

= 11,700 times

8 0
3 years ago
Brainliest to right answer any trolling will get you reported
s344n2d4d5 [400]
Parent Function: f(x)=x*2

Horizontal Shift: None

Vertical Shift: Down 1 Units

Reflection about the x-axis: None

Reflection about the y-axis: None

Vertical Compression or Stretch: None
5 0
3 years ago
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