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Svetlanka [38]
2 years ago
6

Can someone help me and explain

Mathematics
2 answers:
zloy xaker [14]2 years ago
6 0

Answer:

20.56 in

Step-by-step explanation:

The perimeter is the length of the outside of the figure.

This consists of 2 semicircles and 2 straight parts of 4 in

The 2 semicircles can be thought of as 1 circle with circumference

C = 2πr ( r is the radius )

Here diameter = 4 so r = 4 ÷ 2 = 2, then

C = 2 × 3.14 × 2 = 4 × 3.14 = 12.56 in

Thus

perimeter = 12.56 + 4 + 4 = 12.56 + 8 = 20.56 in

choli [55]2 years ago
4 0
The first thing I did was to make a living room for the next ➡️ to a friend of the first time since the first place in the same manner as the most popular connection with the other hand, if and I am a big deal with a new one way or the other hand, I have been using it for as long as possible and I am sure a lot of the time and the rest of the world is going to have to get the most out of the box the first.
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<h2>Since the cube has 6 faces we multiply the surface area of one face(144cm²) with 6</h2>

Area(cube)=1.44cm²*6

=8.64cm²

<h2>Same thing with the prism but we have to find the area of one of his triangle face and rectangle face</h2>

S(triangle)=5mm*4mm*1/2

=10mm²

S(rectangle)=7mm*5mm=35mm²

<h2>The prism has 2 triangle faces and three rectangle faces so we multiply the area by those numbers and then we add those together to get the final area</h2>

S=10mm²*2+35mm²*3

S=20+105

S=125mm²

<h3><em>Hope this helped..</em></h3><h3 /><h3><em>Hope this helped..Brainliest pls..</em></h3>
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2 years ago
<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B2%20%2B%20%20%5Csqrt%7B2%20%2B%20%20%5Csqrt%7B2%7D%20%7D%20%7D%20" id="TexFormula
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Answer:

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Answer:

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Answer: x≈0.732

Step-by-step explanation:

You need to find the value of the variable "x".

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Apply logarithm on both sides of the equation:

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Now, applying the property mentioned before, you can rewrite the equation in this form:

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Finally, you can apply the Division property of equality, which states that:  

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Therefore, you need to divide both sides of the equation by log(90). Finally, you get:

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