If
f
(
1
)
=
3
f(1)=3 and
f
(
n
)
=
f
(
n
−
1
)
−
3
f(n)=f(n−1)−3 then find the value of
f
(
4
)
f(4).

Answer:

pretty sure the tree's 20 feet

According to proportion if a tree casts a shadow of 40 feet it;s height is 20 feet.

A ratio is a comparison between two similar quantities in simplest form.

Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.

In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.

We know 1 yard is 3 feet.

Given, The shadow of the tree is 40 feet long. A yardstick placed next to the tree casts a 6-foot shadow and assuming the height of the tree to be x.

∴ x : 40 : : 3 : 6.

x/40 = 3/6.

6x = 120.

x = 20 feet.

learn more about proportion here :

https://brainly.com/question/7096655

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Answer:

The answer is (7,3)

Step-by-step explanation:

the answer is the point where the two lines intersect.

Answer: This means that the population increased a 20% between the year 2000 and the year 2010.

Step-by-step explanation:

In this case, we have that 25,000 is the 100%.

Now we want to know which percentage represents 30,000

Let's suppose that the percentage is X.

Then we can have a system of equations:

30,000 = X

25,000 = 100%

To find the value of X, we can take the quotient of these two equations:

30,000/25,000 = X/100%

(30,00/25,000)*100% = X = 120%

Then in the 2000 we had a 100%, and in the 2010 there was a 120%.

The difference is:

120% - 100% = 20%

This means that the population increased a 20% between the year 2000 and the year 2010.

Answer:

Step-by-step explanation:

1a= 6/14=3/7

1b= 5/18

2= 1/2 of 7/8=1/2 x 7/8=7/16

Answer:

Step-by-step explanation:

Trigonometric identities are used to show the equality of expressions involving trigonometric functions. These trigonometric functions are the sine, the cosine, and the tangent as well as their respective reciprocals which are cosecant, the secant, and the cotangent,

Some trigonometric identities are:

tanθ = sinθ / cosθ; secθ = 1 / cosθ; cosecθ = 1 / sinθ; cotθ = 1 / tanθ = cosθ / sinθ

The angle addition formula for cos is given as:

cos(α + β) = cosαcosβ - sinαsinβ

Therefore:

cos(a + b) = cosacosb - sinasinb

Answer:

Step-by-step explanation:

Answer:

7,1

Step-by-step explanation:

80 divided by 9 times 8 i think

Answer: The answer is the second option

Step-by-step explanation:

Divide each term by 4 and simplify x>8

Answer:

3

Step-by-step explanation:

it intercepts the y axis at 3

Answer:

3 2

Step-by-step explanation:

I just know

Answer:

D 55 sqaure cm

Step-by-step explanation:

Answer:

I believe the answer is C. Please let me know if I am wrong

Step-by-step explanation:

Answer:

(c-a,b)

Step-by-step explanation:

Bottom of shape is equal to 4a, or c.

R is to be located at (3a, b)

c-a=3a, ∴r: (c-a,b)

Answer:

BROO IS THAT RM FOR YOUR PFP?!

Step-by-step explanation:

Answer:

2 and 17

Step-by-step explanation:

34=(x-4)(x+11)

34=[tex]x^{2} \\[/tex]+7x-44

x^2 +7x -78=0

x=6

6-4=2

6+11=17

Answer:

Step-by-step explanation:

G

Answer:

[tex]\sqrt{12}[/tex]

Step-by-step explanation:

[tex]\sqrt{4^2-2^2} =\sqrt{12}[/tex]

Hence, the answer is [tex]\sqrt{12}[/tex].

Please mark as Brainliest!

Answer: $100.70

Step-by-step explanation: 6% is equal to 0.06, so you can add multiply the price of the item by 1.06 because that is the base cost plus the tax. Then you get $100.70.

Answer:

100.70

Step-by-step explanation:

95.00*6%

95.00*.06=5.70

95.00+5.70=100.70

Answer:

It should be 1 and 3, but for it to be perfectly correct, it should be 17.6 and not 17.4

the answer is 1 and 3. since it isn't exact.

Hey there!

The answer is yes, because it does not depend on your height, because you can be any height in any grade (well, maybe not ANY height, because you can't be, like, 100 feet, or 1 inch, but you get the point...).

Hope it helps and have a great day!

Answer: See explanation

Step-by-step explanation:

The dimensions of the first drawing will be 1/3 the dimensions of the leaf and the dimension of the oak leaf is 5 1/2 inches. Therefore, the dimensions of the 1st leaf:

= 1/3 × 5 1/2

= 1/3 × 11/2

= 11/6

= 1 5/6 inches

This is less than 5 1/2 inches

The dimensions of the second drawing will be 2 1/2 the dimensions of the leaf. This will be:

= 2 1/2 × 5 1/2

= 5/2 × 11/2

= 55/4

= 13 3/4 inches

Thus is greater than 5 1/2 inches

Answer:

the last one lol- thats just how it works

Answer:

No

Step-by-step explanation:

When working with negative numbers in terms of depth, greater depth are depicted by values as we move farther to the left of the number line.

With this in mind, - 75 feets is farther to the left of the number line and as such represents a greater depth value Than - 68 feets

Therefore, when expressing depth or elevation distances, the values should be iewwd in absolute terms. Then |75| > |68|. While bearing in mind that depth is downward and thus negative

in the first 18 and the second 6

Answer:

1)

proportional relationship )

2)unit rate

3)constant of proportionality

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

Pls mark brainliest.

Answer: −18x-1

Step-by-step explanation: Hope this helps

The answer is in the picture. Let me know if you have any questions.

Step-by-step explanation:

7x + 10 = 4x + 16

3x + 10 = 16 (subtract 4x on both sides)

3x = 6 (subtract 10 on both sides)

x = 2 (divide 3 on both sides)

Answer/Explanation:

When you change the slope, it will affect the steepness of the graph/line.

When you change the y-intercept (b) it will affect where the graph crosses the y axis.

-increasing the y-intercept will make the graph move up and

decreasing will make the y-intercept go down.