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Kipish [7]
3 years ago
5

HELP ASAP WILL REWARD THIRTY POINTS.

Mathematics
1 answer:
OverLord2011 [107]3 years ago
4 0
D.Annulus
is the correct answer....



HOPE IT HELPS YOU '_'
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The ____________________ school, led by naturalist john muir, wanted wilderness areas on some public lands to be left untouched.
Vanyuwa [196]

The  preservation/list school, led by naturalist John muir, wanted wilderness areas on some public lands to be left untouched.

<h3>What does it mean if a person is a naturalist?</h3>

A naturalist lifestyle is a term that connote that a person is making or developing values that makes or forms empathy and caring in regards to nature.

Therefore, The  preservation/list school, led by naturalist John muir, wanted wilderness areas on some public lands to be left untouched.

Learn  more about naturalist  from

brainly.com/question/9617746

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3 0
2 years ago
Please help i am confused
Dovator [93]

Answer: (1)

Step-by-step explanation:

The parts listed in the congruence statement aren't corresponding, meaning they don't have to be congruent.

3 0
2 years ago
Simplify: 6v+v+1 learned at beggining of year btw
Readme [11.4K]

Answer:

7v +1

Step-by-step explanation:

6v+v+1

Combine like terms

7v +1

5 0
4 years ago
The length of a rectangle is 4 inches longer than the width. The perimeter is 48 inches. What is the width?
amid [387]

Answer:

w = 10 in

Step-by-step explanation:

Perimeter is the measure of the length of all sides

48 = 2L + 2w

L = w + 4

^ use substitution

48 = 2(w + 4) + 2w     simplify.

48 = 2w + 8 + 2w       combine like terms

48 = 4w + 8           then subtract 8 from both sides

40 = 4w     then divide by 4 to isolate w

10 = w

3 0
3 years ago
Solve this i am not able to solve​
Margarita [4]

Answer:

Step-by-step explanation:

First we need to set this ratio up in the coordinate plane. Because this is tangent, the 3 goes opposite the reference angle and the 4 goes along the x-axis, adjacent to the reference angle. We see that we are missing the third side of the triangle when we do this, namely the hypotenuse. We use Pythagorean's Theorem to find that this side is 5. Now we have to deal with the identities for each sin(2A) and cos(2A).

sin(2A) = 2sin(A)cos(A)

We know from the triangle we drew in the coordinate plane that

sin(A)=\frac{3}{5}  and  cos(A)=\frac{4}{5} so we fill in the formula accordingly and then simplify:

sin(2A)=2(\frac{3}{5})(\frac{4}{5})=\frac{24}{25}

cos(2A) has 3 identities; I just picked the one I thought would be easiest to use and went with that one. Regardless of which one you pick you will get the same answer as long as you do the math correctly.

cos(2A)=cos^2(A)-sin^2(A) and filling in the formula:

cos(2A)=(\frac{4}{5})^2-(\frac{3}{5})^2\\cos(2A)=\frac{16}{25}-\frac{9}{25}\\cos(2A)=\frac{7}{25}

I'm not sure why you have 7/2 there...

8 0
3 years ago
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