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3 years ago

I really need help please

Mathematics

1 answer:

Leokris [45]3 years ago

6 0

Answer:

So we have two given angles- 31* and 43*.

First we add those together.

31* + 43* = 74*

Then, we subtract that amount from 180*

180* - 74* = 106*

106* is the missing angle.

x106* - 31* = 75*

x106* + 43* = 149*

~Hope this helps~

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The center of the circle is (-4,6). the circle passes through the point (-2,3). what is it’s radius

Nadusha1986 [10]

Answer:

Radius is 3.6

Step-by-step explanation:

Using Pythagorean Theorem we find the Hypotenuse with the side lengths which are 3 and 2.

The quick equation to solve that would be

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4 years ago

3(1)+2(_)=6<br><br> plz help on filling in the blank

TEA [102]

Answer:

x = 3/2

Step-by-step explanation:

Let's solve your equation step-by-step.

(3)(1)+2x=6

Step 1: Simplify both sides of the equation.

(3)(1)+2x=6

3+2x=6

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3 years ago

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AlladinOne [14]

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3 years ago

Calculate the surface area of the closed half-cylinder. all measurements are in cm<br>

AVprozaik [17]

Answer:

2656.31 $cm^{2}$

Step-by-step explanation:

To calculate the surface area, we need to find the area of all the faces, and add them together.

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Rectangular base:

A = length x width

A = 29.3 x 16.2

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Two semicircles:

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A = $\pi$ x $14.65^{2}$

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The curved top, when flattened out, becomes a rectangle with a length of 16.2. The width is equal to half the circumference of the circle formed by the two semicircles.

To find the width, use the circumference (C) formula.

C = $\pi$ x diameter

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C = $\pi$ x 29.3

C = 93.049 (rounded to 3 DP)

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3 years ago

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