Answer:
if you convert inches to cm...
Step-by-step explanation:
9inch=22.86cm
12inch=30.48cm
V=TTr²h
TT= 3.14
V= 3.14×22.86²×30.48
V= 50014.6cm³
if you don't convert inches to cm...
V=TTr²h
V=3.14 ×9×12
V=339.12cm³
1. The value of x is 40
m ∠2x + 10 = 90
m ∠3x = 120
m ∠2x +5 = 85
m ∠2x -15 = 65
2. The value of x is 15
m ∠5x = 75
<h3>Calculating angles</h3>
From the question, we are to determine the value of x and the given angles
Since sum of angles is 360°
3x + 2x + 10 + 2x + 5 + 2x -15 = 360°
Collect like terms
3x + 2x + 2x + 2x = 360° - 10° - 5° + 15°
9x = 360
x = 360 / 9
x = 40
∴ x = 40
Then,
m ∠2x + 10 = 2(40) + 10
m ∠2x + 10 = 80 + 10
m ∠2x + 10 = 90
m ∠3x = 3(40)
m ∠3x = 120
m ∠2x +5 = 2(40) + 5
m ∠2x +5 = 80 + 5
m ∠2x +5 = 85
m ∠2x -15 = 2(40) - 15
m ∠2x -15 = 80 - 15
m ∠2x -15 = 65
Hence, the measure of angle 2x-15 is 65
2.
Since sum of angles is 180°
Then,
5x° + x° + 90° = 180°
6x° = 180° - 90°
6x° = 90°
x = 90/6
x = 15
m ∠5x = 5(15)
m ∠5x = 75
Hence, the measure of angle 5x is 75
Learn more on Calculating angles here: brainly.com/question/15820650
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$35 x0.80 = $28
sale price is $28
<span>c) $28</span>
Answer:
a. 4x+7 b. 4(5y+1) c. 19z-9 d. 4
Step-by-step explanation:
I know they all are correct.