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3 years ago

6

Help me please I suck at this

2 answers:

Mkey [24]3 years ago

4 0

Answer:

x=71

Step-by-step explanation:

180-38= 142

142/2= 71

it looks like x and the blank space are the same size

aivan3 [116]3 years ago

3 0

Answer:

帝帝帝帝帝帝帝

Step-by-step explanation:

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Pleaseee helpppp meee (;

My name is Ann [436]

Answer:

a. Area = 1,017.36 cm²; Circumference = 113.04 cm

b. Area

c. Circumference

Step-by-step explanation:

Given:

Radius (r) = 18 cm

π = 3.14

a. Area of the mirror = area of circle = πr²

Plug in the values

Area = 3.14*18²

Area = 1,017.36 cm²

Circumference = 2πr

Circumference = 2*3.14*18

Circumference = 113.04 cm

b. The area of the glass would be used in finding the amount of glass needed caused it's the surface of the glass that is to be replaced.

c. The silver wire would be placed around the mirror, therefore, it is the circumference that would be needed in finding the amount of wire needed since the circumference is the perimeter round the mirror.

4 0

3 years ago

PLEASE ANSWER for brainlest

Travka [436]

Answer:2925

Step-by-step explanation:

Hope this helpes

8 0

4 years ago

Read 2 more answers

ANTONII [103]

Right triangles are triangles that have the measure of one angle to be 90 degrees

<h3>How to calculate the missing parts</h3>

<u>a. A = 40°10'13", hypotenuse = 402.36 ft</u>

Convert the angle to degrees

$A=40.17^o$

Start by calculating the opposite side using the following sine ratio

$\sin(A) = \frac{Opposite}{Hypotenuse}$

So, we have:

$\sin(40.17) = \frac{Opposite}{402.36}$

Cross multiply

$Opposite = 402.36 * \sin(40.17)$

$Opposite = 259.55$

The adjacent is then calculated using the following cosine ratio

$\cos(A) = \frac{Adjacent}{Hypotenuse}$

So, we have:

$\cos(40.17) = \frac{Adjacent}{402.36}$

Cross multiply

$Adjacent = 402.36 * \cos(40.17)$

$Adjacent = 307.46$

Hence, the missing parts are:

Adjacent = 307.46 and Opposite = 259.55

<u>b. A = 62°09'15", hypotenuse = 338.74 m</u>

Convert the angle to degrees

$A=62.15^o$

Start by calculating the opposite side using the following sine ratio

$\sin(A) = \frac{Opposite}{Hypotenuse}$

So, we have:

$\sin(62.15) = \frac{Opposite}{338.74}$

Cross multiply

$Opposite = \sin(62.15) *338.74$

$Opposite = 299.50$

The adjacent is then calculated using the following cosine ratio

$\cos(A) = \frac{Adjacent}{Hypotenuse}$

So, we have:

$\cos(62.15) = \frac{Adjacent}{338.74}$

Cross multiply

$Adjacent = \cos(62.15) * 338.74$

$Adjacent = 158.25$

Hence, the missing parts are:

Adjacent = 158.25 and Opposite = 299.50

<u>c. A = 36°22'10", adjacent side = 360.41 ft</u>

Convert the angle to degrees

$A=36.37^o$

Start by calculating the hypotenuse using the following cosine ratio

$\cos(A) = \frac{Adjacent}{Hypotenuse}$

So, we have:

$\cos(36.37) = \frac{360.41}{Hypotenuse}$

Make Hypotenuse the subject

$Hypotenuse = \frac{360.41}{\cos(36.37)}$

$Hypotenuse = 447.60$

The opposite side is then calculated using the following cosine ratio

$\sin(A) = \frac{Opposite}{Hypotenuse}$

So, we have:

$\sin(36.37) = \frac{Opposite}{447.60}$

Cross multiply

$Opposite = 447.60 * \sin(36.37)$

$Opposite = 265.43$

Hence, the missing parts are:

Hypotenuse = 447.60 and Opposite = 265.43

d. Hypotenuse = 428.29 m, opposite side =397.06 m

The adjacent is calculated as:

$Adjacent = \sqrt{Hypotenuse^2 - Opposite^2$

So, we have:

$Adjacent = \sqrt{428.29^2 - 397.06^2$

$Adjacent = 160.55$

Hence, the missing part is:

Adjacent = 160.55

<u>e. Hypotenuse = 409.31 ft, adjacent side = 274.82 ft</u>

The opposite is calculated as:

$Opposite= \sqrt{Hypotenuse^2 - Adjacent ^2$

So, we have:

$Opposite= \sqrt{409.31^2 - 274.82^2$

$Opposite= 303.33$

Hence, the missing part is:

Opposite= 303.33

<u>f. Opposite side = 375.82 m, adjacent side= 276.05 m</u>

The hypotenuse is calculated as:

$Hypotenuse= \sqrt{Opposite^2 + Adjacent ^2$

So, we have:

$Hypotenuse= \sqrt{375.82^2 + 276.05^2$

$Hypotenuse= 466.31$

Hence, the missing part is:

Hypotenuse= 466.31

Read more about right triangles at:

brainly.com/question/2437195

5 0

3 years ago

The composite figure shown is made up of half of a sphere and a

grigory [225]

we can divide this shape into two parts

(1) Hemisphere:

we can see that

radius is 8

now, we can use formula for volume

$V=\frac{2}{3} \pi r^3$

$V=\frac{2}{3} \pi (8)^3$

$V=1072.33029$

(2) Cylinder:

radius is 8

height is 7

we can use formula

$V=\pi r^2 h$

$V=\pi (8)^2*7$

$V=1407.43351$

now, we can add them to find total volume

$V=1072.33029+1407.43351$

$V=2479.7638 in^3$ ..............Answer

6 0

3 years ago

I need help please^^

Tcecarenko [31]

The answer is to your question is No.

4 0

3 years ago

Read 2 more answers