Solve this please ( sorry if u cant see it clearly)

Answer:

40 feet represents the height of the tree ⇒ H

Step-by-step explanation:

Let us solve the question using the proportional

∵ A tree casts a shadow 64 feet long

∴ L[tex]_{T}[/tex] = 64 feet

∵ At the same time, a girl 5 feet tall standing near the tree

∴ H[tex]_{G}[/tex] = 5 feet

∵ She casts a shadow that is 8 feet long

∴ L[tex]_{G}[/tex] = 8 feet

The ratios between the shadows and the heights of the tree and the girl are proportional

∵ [tex]\frac{H_{T}}{H_{G}}[/tex] = [tex]\frac{L_{T}}{L_{G}}[/tex]

→ Substitute their values in the equivalent ratios

∴ [tex]\frac{H_{T}}{5}[/tex] = [tex]\frac{64}{8}[/tex]  

→ By using cross multiplication

∴ H[tex]_{T}[/tex] × 8 = 5 × 64

∴ 8H[tex]_{T}[/tex] = 320

→ Divide both sides by 8

∴ H[tex]_{T}[/tex] = 40 feet

∴ 40 feet represents the height of the tree

Answer:

0 and 8/3

Step-by-step explanation:

y is continuous on [0,4]

It also also differentiable on (0,4)

Plugging in 0 and 4, we get -3 both times so y(0) = y(4).

Therefore there is at least one value c between 0 and 4 inclusive where y'(c) = 0

y' = -3x^2 + 8x

Set that to 0:

-3x^2 + 8x = 0

x(-3x+8) = 0

x = 0 or 8/3

And both values work.

Answer:

Step-by-step explanation:

-7

Answer:

.65

.9

1.4

.5

.25

.75

1.25

1.5

Step-by-step explanation:

You can double check by putting them into your calculator or dividing them by hand

Answer:

0.65

0.9

1.4

0.5

0.25

0.75

1.25

1.5

Step-by-step explanation:

Answer:

The answer is B

[tex]y<-\frac{1}{4} x+2\\[/tex]

Step-by-step explanation:

Let:

[tex](x1,y1)=(0,2)\\(x2,y2)=(4,1)\\m=\frac{1-2}{4-0}=-\frac{1}{4} \\y-y1=m(x-x1)\\y-2=-\frac{1}{4} (x-0)[/tex]

Since the line is dotted and the area is below the line:

[tex]y<-\frac{1}{4}x+2[/tex]

PLEASE MARK ME AS BRAINLIEST

Answer: f(x) = 2

Step-by-step explanation:

I think this is the answer I hope it helps u

Answer:

The answer is 639.

Step-by-step explanation:

42.6 × 15

639

Answer: 639

Step-by-step explanation:

42.6 x 15 =639

Answer:

B

Step-by-step explanation:

Step-by-step explanation:

[tex] \sqrt{ \frac{9}{16} } \: is \: an \: irrational \\ hopeit \: helps \\ plz \: mark \: as \: brainliest.....[/tex]

Answer:

the answer is (1)

Step-by-step explanation:

k = am +3mx

k = m(a+3x)

m(a+3x) = k

[tex] \frac{m(a+3x)}{(a + 3x)} = \frac{k }{(a + 3x)} [/tex]

[tex]m = \frac{k }{a + 3x} [/tex]

Answer:

-6r+5 by combining like terms

Answer:

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol. See: Variable.

Step-by-step explanation:

Answer:    2h- 8

Step-by-step explanation:

Answer:

2h-8

Step-by-step explanation:

Simplify

Distribute

2 ( ℎ − 4 )

2 ℎ − 8

Solution

2 ℎ − 8

Answer:

0

Step-by-step explanation:

a1 is the first term and d is the number it goes up each time so you can just do 14 times 1/2 and add it to -7 so you get 0 for the 15th term

Answer:

yes

Step-by-step explanation:

To determine if the sides form a right triangle.

If the square of the longest side is equal to the sum of the squares on the other 2 sides then triangle is right.

longest side is c = 13

13² = 169

a² + b² = 12² + 5² = 144 + 25 = 169

Since c² = a² + b² = 169

Then the sides form a right triangle

Answer:

GT, GV, PT, PV, ET, and EV.

Step-by-step explanation:

Given that

The number of topics Travis has to chose from are 3 topics(G, P, E).

The number of ways Travis can study each topic are 2 ways(T, V).

Essentially, the number of combinations Travis is expected to be able to chose from is given as

The number of combinations = The number of topics * The number of ways

The number of combinations = 3 * 2

The number of combinations = 6

Therefore, the total possible combinations has to be

GT, GV, PT, PV, ET, and EV

Answer:

Line B

Step-by-step explanation:

The line B has a proportionality of one which you can tell because of the equation Y=1X. Simplified, this equation means that for every increase in X value, there is an equal increase in Y value. This equation can be used to find the proportionality rate of other lines such as how A is Y=2X and C is Y=1/2X.

Answer:

b =  18.56

c =  12.75

A = 40°

Step-by-step explanation:

Law of sines: a/sinA = b/sinB= c/sinC

12 / sin (180°-97°-43°) = b/sin97° = c/sin43°

12/sin40° = 12/0.64 = 18.75

b = 18.75 x sin97° = 18.75 x 0.99 = 18.56

c = 18.75 x sin 43° = 18.75 x 0.68 = 12.75

check: 12/sin40° = 12/0.64 = 18.75

b: 18.56 sin97°=0.99      18.56/0.99 = 18.747 ≈ 18.75

c: 12.75   sin43° = 0.68   12.75/0.68 = 18.75

Answer:

60(.3)= 18

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

Answer:

If i'm correct it would be -49 and -8

Step-by-step explanation:

Answer:

3. $3

4. $17

Step-by-step explanation:

15% of 20 is 3 so it'd be a discount of $3. 20-3=17

Answer: is 7 an answer choice ?

Step-by-step explanation:

Answer:

x=7

Step-by-step explanation:

x-15/5=4

x-3=4

x=4+3

x=7

Answer:

C.$0.15 I TOOK IT ON STUDY ISLAND

Step-by-step explanation:

First, you want to find an exact point on the graph.  What I mean by this is you want to go somewhere on the graph where the line goes through an exact y and x value.

Second, you want to figure out where this x and y value are.  Where the graph first goes through two points is at (20, 3).

Third, you want to figure out what the 20 and the 3 mean.  20 is the number of messages and 3 is the dollar amount.

Finally, to calculate the amount of money per message, you divide the dollar amount (3) by the number of messages (20).  So, you have 3/20.  After this, simplify 3/20 to get 0.15, or 15 cents per message.

Answer: 10/3

Step-by-step explanation: trust me my guy g o o g l e is always correct

Answer:

hope this helps

Step-by-step explanation: