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2 years ago

Can you guys help me on question 8 and 9 :)

Mathematics

1 answer:

Reika [66]2 years ago

8 0

Answer:

for 8 i think its a b and c sorry if am wrong

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Suppose you inherited a house that was purchased in 1950 for 20,000. It is now 2015 and the value of the house has increased by

sleet_krkn [62]

This deals with exponential growth.
house value = 20,000 * (1.05)^years
(where years is # of years from 1950 - so 1950 = 0, 1951 = 1, etc)
house value = 20,000 * (1.05)^65
house value = 20,000 * 23.8399005592 
house value = 476,798.01

7 0

2 years ago

Write a recursive rule for the sequence. Assume it starts with the 1st term. 10, 14, 18, 21...

Papessa [141]

Option D is correct. The correct option for the recursive formula is $f(0) =6;f(n)=f(n - 1)+4$

Given the sequence 10, 14, 18...

The first term is 10, hence

a1 = 10

The previous terms will be $a_{n-1}$

From the sequence, we can see that 4 is being added to the previous term to get the next term. Hence the nth term will be expressed as:

$a_n = a_{n-1} + 4$

Get the term before the first term $a_0$

If n = 1

$a_1 = a_{1-1} + 4\\a_1 = a_{0} + 4\\a_0=a_1-4\\a_0=10-4\\a_0=6$

Hence the correct option for the recursive formula is $f(0) =6;f(n)=f(n - 1)+4$

Learn more here: brainly.com/question/18233843

3 0

2 years ago

Four expressions are shown bellow

Irina18 [472]

Answer:

$2(4x + 2)$

and

$8x + 4$

Step-by-step explanation:

Because if you simplify the equation theb you get 8x+4 therefore D is equivalent to it. A is also equal to D which make it equivalent to the equation as well.

3 0

2 years ago

Read 2 more answers

A dilation has a center (0,0,0), Find the image fo the point (-1, -2, 0) for the scale factor of 3.

pychu [463]

Answer:

(- 3, - 6, 0)

Step-by-step explanation:

Since the dilatation is centred at the origin, multiply each of the coordinates by the scale factor 3

(- 1, - 2, 0) → (- 3, - 6, 0)

7 0

2 years ago