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Leviafan [203]
3 years ago
11

Helppppppppppppppp give bralienst

Mathematics
1 answer:
hoa [83]3 years ago
5 0

Answer:

give me brainliest then i give the answer i know it

Step-by-step explanation:

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Which is the angle of depression from the boat to the submarine?
kakasveta [241]
We know that

<span>If the slope of the angle from the vertex is positive, then it is an angle of elevation.</span>

<span>If the slope of the angle from the vertex is negative, then it is an angle of depression.</span>

The angle of elevation is congruent to the angle of depression because they are alternate interior angles

in the picture

∠ 1 is the angle of elevation from submarine to the boat

∠2 is the angle of depression from boat to submarine

∠3 is the angle of elevation from boat to the lighthouse

∠4.is the angle of depression from the lighthouse to the boat


therefore

the answer is

∠2 is the angle of depression from boat to submarine

3 0
3 years ago
What is 9+10 i need help
erma4kov [3.2K]

Answer:

19

Step-by-step explanation:


3 0
4 years ago
Read 2 more answers
What are the possible solutions to the equation: x-12 = sqrt x+44
Ainat [17]

possible solutions for equation  x-12 = \sqrt{x+44} is  x=5 , x=20

<u>Step-by-step explanation:</u>

Here we have to find  the possible solutions to the equation: x-12 = sqrt x+44 .Let's find out:

⇒ x-12 = \sqrt{x+44}

⇒ (x-12)^2 = (\sqrt{x+44})^2

⇒ (x^2+144-24x) =x+44

⇒ (x^2+144-24x) -(x+44) =0

⇒ (x^2+100-25x) =0

⇒ x^2-25x+100 =0

⇒ x^2-20x-5x+100 =0

⇒ x(x-20-5(x-20) =0

⇒ (x-5)(x-20)=0

⇒ x-5=0 , x-20=0\\

⇒ x=5 , x=20

Therefore , possible solutions for equation  x-12 = \sqrt{x+44} is  x=5 , x=20

6 0
3 years ago
What is 2x+3x-4?????<br> .
Minchanka [31]

Answer:

5x - 4

Step-by-step explanation:

2x + 3x = 5x

4 = 4

8 0
4 years ago
Read 2 more answers
Factorize of 2a³-a²+a-2​
IrinaK [193]
<h3>Answer:  (a - 1)(2a² + a + 2)</h3>

=========================================================

Explanation:

Use the rational root theorem to determine this list of possible rational roots: 1, -1, 1/2, -1/2

Plug each possible root one at a time into the original expression given. If the simplified result is 0, then that possible root is an actual root.

If we tried say a = -1, then,

2a³-a²+a-2​ = 2(-1)³-(-1)²+(-1)-2​ = -6

The result is not zero, so a = -1 is not an actual root.

But if we tried say a = 1, then,

2a³-a²+a-2​ = 2(1)³-1²+1-2​ = 0

We get 0 so a = 1 is an actual root. I'll let you try the other values, but you should find that a = 1 is the only rational root.

Since a = 1 is a root, this makes (a-1) to be a factor.

From here, use either synthetic or polynomial long division to determine the other factor. Refer to the diagram below for each method.

Regardless of which method you pick, the quotient is 2a² + a + 2 which is the other factor needed. The remainder of 0 tells us we have (a-1) as a factor. For more information, check out the remainder theorem.

5 0
2 years ago
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