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PolarNik [594]
3 years ago
6

A sequence is given by the rule 4n – 5

Mathematics
1 answer:
bixtya [17]3 years ago
4 0
What you can do: (n)a=(n)(4+1/n)
Know divide away each n on respective side you get:
a=4+1/n
Know when n=0, 1/0 is not defined there’s that
n=1 , 4+1/1 = 5
n=2 , 4+1/2 = 4.5
n=3 , 4.33
n=4, 4.25
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F(x) = x^2 + 3 g(x) = 4x - 3 Find (f°g)(-1)​<br><br>a. 4<br>b. -52<br>c. -4<br>d. 52
Yanka [14]

Answer:

Step-by-step explanation:

g(-1) = 4(-1) - 3 = -4 -3 = -7

f(-7) = (-7)^2 + 3 = 49 + 3 = 52

Answer is D

4 0
4 years ago
Please help with this i would be so glad and happy.
weqwewe [10]

Answer:

Step-by-step explanation:

d) (-2 +4i) -( 3 + 9i) = -2 + 4i - 3 - 9i

                             = -2 - 3 + 4i - 9i

                             = -5 - 5i

e)3i(6 - 5i) =  3i *6 - 5i * 3i

                = 18i - 15*i²                    {i² = -1}

                = 18i -15*(-1)

                = 18i + 15

                 = 15 + 18i

f) (-3 + 7i)(1 - 2i) = (-3)*1 - 2i * (-3) + 7i *1  - 2i* 7i

                         = -3 + 6i + 7i - 14i²

                        = -3 + 6i + 7i - 14*(-1)

                        = -3 + 6i+ 7i + 14

                        = 11 + 13i

3 0
3 years ago
The Winkler family saved $100 month from the time Sarah was born until she started college. Sarah started collage on her 18th bi
Vlada [557]
4 year college Tuition: $28,800.00
Money Saved since Sarah was born: $21,600.00

So, no, her family did not save enough for college.
5 0
3 years ago
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Is the ratio 4.2:1.5 proportional to the ratio 12.6:4.5
VashaNatasha [74]
That's true they are proportional 
5 0
3 years ago
Can you find the<br> Triangle’s perimeter<br><br><br> I’m marking branliest.
trasher [3.6K]

Answer:

P = 12x - 9

Step-by-step explanation:

To find the perimeter of the triangle, we just add all of the sides.

The formula is:

P = a + b + c

Given:

a = 5x - 6

b = 4x - 3

c = 3x

Work:

P = a + b + c

P = 5x - 6 + 4x - 3 + 3x

P = 12x - 9

4 0
3 years ago
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