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4 years ago

Type the expression that results from the following series of steps: Start with t, add 6, multiply by 2, then subtract 5.

Mathematics

1 answer:

Lynna [10]4 years ago

5 0

Answer:

2(t+6)-5

Step-by-step explanation:

The unknown number is t

=> Adding 6 will make it t+6

=> Multiplying 2 will make it 2(t+6)

=> Subtracting 5 will make it 2(t+6)-5

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A wall lizard has adhesive pards in the limbs true or false plz help me

goldfiish [28.3K]

Answer:

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4 years ago

F(n) = 2• (-3)^n

Mashutka [201]

Answer:

$f(1)=-6$

$f(n)=f(n-1)(-3)$

Step-by-step explanation:

We are given that

$f(n)=2\cdot (-3)^n$

We have to complete the recursive formula of f(n).

Substitute n=1

$f(1)=2\cdot (-3)$

$f(1)=-6$

$f(2)=2\cdot (-3)^2=18$

$f(3)=2\cdot (-3)^3=-54$

$\frac{f(2)}{f(1)}=\frac{18}{-6}=-3$

$\frac{f(3)}{f(2)}=\frac{-54}{18}=-3$

It forms geometric sequence because the ratio of two consecutive terms are equal.

Therefore, the recursive formula

$f(n)=f(n-1)r$

$f(n)=f(n-1)(-3)$

7 0

3 years ago

Read 2 more answers

Cos2a=1-2sin^2a for all values of a.

pickupchik [31]

$cos2a= cos^{2} a- sin^{2} a \\ but \ cos^{2} a + sin^{2} a=1 \\ i.e. \ cos^{2} a=1- sin^{2} a$
Therefore,
$cos2a=1- sin^{2} a- sin^{2} a \\ =1-2 sin^{2} a$

6 0

3 years ago

Read 2 more answers

What is 4.86 divided by 0.2

babymother [125]

- - Lets solve:

$\frac{4.86}{0.2}$

$\frac{4.86}{ \frac{2}{10} }$

$4.86* \frac{10}{2}$

- - Solve for that to get answer:

24.3

Your final answer is 24.3

7 0

4 years ago

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I'm not good at math

Sati [7]

For #2 from what I can see it is x ÷ 3= 3 which x would equal 1
For #3 it is 4x=-32 which x would be -8
If I saw it wrong please let me know

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4 years ago