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Marta_Voda [28]
3 years ago
12

Helpppp please thanksssss .

Mathematics
1 answer:
Elza [17]3 years ago
3 0

Answer:

I think the answer is B

Step-by-step explanation:

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I need help finding the missing side length with the answer in radicals in the simplest form.
AlekseyPX

Answer:

C

Step-by-step explanation:

There’s nothing hard with this

You need to know special right triangles

This is a 30,60, 90 triangle

We automatically know becuase theres. Right angle (90) and a 60 degree angle

now the formula is the smallest side is (n) {I’m using N becuase theres already an X) or in this case, 6

The hypotenuse, the one directly above the 2nd biggest side, or the diagnoal side is 2n or (12). Now we know what X is in this situation which is 12. So that narrows it to 2 answers

Now the side on the bottom of the hypotenuse, the second biggest side is used in the formula N\sqrt{3}. So we know what N is in the beginning, 6 so we just plug that in and well get C. Attached is a photo on q 30, 60, 90 special right triangle

4 0
3 years ago
Find the surface area of the composite solid.
Westkost [7]

We have:

4 triangles with the base b = 5ft and the height h = 6ft

4 rectangles with the lenght l = 5ft and the width w = 4ft

1 square with side a = 5ft.

The formula of an area of a riangle:

A_T=\dfrac{1}{2}bh

Substitute:

A_T=\dfrac{1}{2}(5)(6)=\dfrac{1}{2}(30)=15\ ft^2

The formula of an area of a rectangle:

A_R=lw

Substitute:

A_R=(5)(4)=20\ ft^2

The formula of an area of a square:

A_S=a^2

Substitute:

A_S=5^2=25\ ft^2

The Surface Area of composite solid:

SA=4A_T+4A_R+A_S

Substitute:

SA=4(15)+4(20)+25=60+80+25=165\ ft^2

<h3>Answer: The Surface Area of the composite solid is 165 ft².</h3>
3 0
3 years ago
What city is located at 39 n and 75 w
Zigmanuir [339]
I think its Philadelphia hopes this helps...
7 0
3 years ago
15x – 2(4x + 1) = -9
Oksi-84 [34.3K]

Answer:

-1

Step-by-step explanation:

15x-8x-2=-9

Or, 7x=-9+2

Or, 7x=-7

Or, x=-7/7

Or, x =-1

6 0
3 years ago
Read 2 more answers
What is mercury's distance from the sun?
Whitepunk [10]
35.98 million miles from the sun
3 0
3 years ago
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