16 people would be at the dinner because Jim and Sarah invited 7 friends and each friend brought 1 guest, so you do 7*2=14 and the 14 + Jim and Sarah=16 people.

7 0

3 years ago

f(5)=12 for a geometric sequence that is defined recursively by the formula f(n)=0.3*f(n-1), where n is an integer and n>0. F

ElenaW [278]

Answer:

f(7) = 1.08

Step-by-step explanation:

Given that:

f(5) = 12

A geometric sequence that is defined recursively by the formula

$f(n) = 0.3 \cdot f(n-1)$ .....[1 ] where, n is an integer and n> 0.

Substitute n = 6 in [1] we have;

$f(6) = 0.3 \cdot f(5)$

Using f(5) = 12 we have;

$f(6) = 0.3 \cdot 12$

⇒ $f(6) =3.6$

We have to find f(7).

Substitute n = 7 in [1] we have;

$f(7) = 0.3 \cdot f(6)$

Substitute the given values f(6) = 3.6 we have;

$f(7) = 0.3 \cdot 3.6$

Simplify:

f(7) = 1.08

Therefore, the value of f(7)to the nearest hundredth is, 1.08

4 0

4 years ago

Read 2 more answers

Choose the correct pair of expressions to complete the solution of Sine (x + StartFraction 3 pi Over 2 EndFraction) = negative S

levacccp [35]

Answer:

C, sin(x), -1

Step-by-step explanation:

right on Edge

split up the equation using the sine sum equation

5 0

3 years ago

Read 2 more answers

Determine whether or not each relationship represents a function. explain your reasoning

Alekssandra [29.7K]

Answer:

left: yes
right: no

Step-by-step explanation:

A function maps an x-value to a single y-value. The graph of the parabola on the left does that.

The table on the right maps -1 to both 10 and 20, so does not meet the definition of a function.

7 0

3 years ago