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4 years ago

What is the constant of proportionality in the equation x/y = 2/9

Mathematics

1 answer:

OverLord2011 [107]4 years ago

3 0

Answer:

1/4.5

Step-by-step explanation:

constant of proportionality always has x as 1

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Please help I’m so confused

Mandarinka [93]

Answer:

(4) f(x) = 1250(0.8)^x is the answer

Step-by-step explanation:

It can be seen that the original price you paid was $1250

After 1 year it was 1000

2 years is 800

3 years is 640

So obviously it's losing value.

But how much value?

We can find how much percentage they are losing by doing this:

1250 x 1.2 or .8 since these are you answers

1250 x 1.2 = 1500, from this we can determine that this answer is WRONG!

The value is going down, and not going up so therefore

It must be

1250 x .8 because when those are multiplied together

You get 1000!

Then 1000 x .8 = 800

800 x .8 = 640!

So we can determine that (4) Is the correct answer.

Hope this helped!

3 0

3 years ago

The prime factorization of 56

Liono4ka [1.6K]

The prime factores are 7,2,2,2

6 0

3 years ago

Artie's dad's house is 21 ft tall. If Artie's dad is at the top of the house installing shingles, and his son Artie is on the gr

konstantin123 [22]

Answer:

B. 60.26°

Step-by-step explanation:

Given:

Consider the diagram representing the above scenario.

The top of the house where dad is standing is at A. The point where his son is standing is B. The bottom of the house is at C. AC is the height of house, BC is the distance between the house and son.

Height of the house (AC) = 21 ft

Distance between the house and son (BC) = 12 ft

Let the angle of depression for the dad be 'x'.

From the figure, it is clear that,

Angle of depression of the dad will be same as angle of elevation of Artie.

For triangle ABC,

$\tan x=\frac{AC}{BC}\\\\\tan x=\frac{21\ ft}{12\ ft}\\\\\tan x=1.75\\\\x=\tan^{-1}(1.75)\\\\x=60.26$

Therefore, the angle of depression from the top of the house to the spot where Artie is standing is 60.26°.

Therefore, the correct option is option (B).

6 0

4 years ago

Keira's older cousin earns $700 a week. Recently he moved into his own apartment. What amount of debt do you think is reasonable

umka21 [38]

Answer:

10,000

Step-by-step explanation:

5 0

3 years ago

In the figure, ∠ and ∠ have measures equal to 35°.

hichkok12 [17]

Answer:

and then? whats the q

Step-by-step explanation:

4 0

3 years ago