All categories

2 years ago

A tree 6m high casts a shadow 4m long. What angle do the sun's rays make with the ground?

Mathematics

1 answer:

Tatiana [17]2 years ago

8 0

high length:6mletngh of shadow =2~3mø is angle ofelevation

Step-by-step explanation:

hope it helps

You might be interested in

I 1 8 in Find h. 13 in = √[?] in.

Archy [21]

as the following pic you can see the answer.

#diameter is 8 so radius is 4

8 0

1 year ago

A square pyramid is shown below:

madreJ [45]

Let Surface Area A, a the base edge and h the height:

A = a²+2a√(a²/4+h²)

h=?

pythagorean theorem:

h²=c²-a²

h=√(c²-a²)

h=√(8²-(.7/2)²)= 8

plug it in the above equation A= 11.7ft²

So A is correct

8 0

2 years ago

Read 2 more answers

Find the value of k by quardractic equation two real and equal roots 5x - 2kx +20=0

kotegsom [21]

Answer:

k = +10 or -10

Step-by-step explanation:

It's given in the question that the roots of the eqn. are real and equal. So , the discriminant of the eqn. should be equal to 0.

$= > {b}^{2} - 4ac = 0$

$= > {( - 2k)}^{2} - 4 \times 5 \times 20 = 0$

$= > 4 {k}^{2} - 400 = 0$

$= > 4( {k}^{2} - 100) = 0$

$= > {k}^{2} - 100 = 0$

$= > k = \sqrt{100} = + 10 \: or \: - 10$

3 0

2 years ago

Read 2 more answers

-k+3k combined like terms to create an equivalent expression

Murrr4er [49]

Answer:

Step-by-step explanation:

Add:

-k + 3k

-1k + 3k

(You have to add -1 + 3)

Hope this helps :)

5 0

2 years ago

Read 2 more answers

PLEASE HELP ASAP ILL MARK BRAINLEST

attashe74 [19]

Answer:

best way would be calendar

Step-by-step explanation:

then stop watch

heartbeat

finding height?

(im not totally sure because it depends what type of timekeeping you're talking about)

3 0

2 years ago

A tree 6m high casts a shadow 4m long. What angle do the sun's rays make with the ground?​

A tree 6m high casts a shadow 4m long. What angle do the sun's rays make with the ground?