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3 years ago

4 vd 6 yd 20 yd Surface Area =

Mathematics

2 answers:

ANTONII [103]3 years ago

8 0

Surface area is anything we can touch on a shape
So you basically do 2*(4*20)+2*(20*6)+2*(4*6) which is 448

Anon25 [30]3 years ago

4 0

The answers is 12 because

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ki77a [65]

Answer:

$CSA = 660cm^2$ --- Curved Surface Area

$TSA = 968cm^2$ --- Total Surface Area

Step-by-step explanation:

Given

Shape: Cylinder

$h = 15$ -- height

$r = 7$ --- radius

Solving (a): The curved surface area (CSA)

This is calculated as:

$CSA = 2\pi rh$

This gives:

$CSA = 2 * \frac{22}{7} * 7 * 15$

$CSA = 2 * 22* 15$

$CSA = 660cm^2$

Solving (b): The total surface area (TSA)

This is calculated as:

$TSA = 2\pi r(h + r)$

This gives:

$TSA = 2 * \frac{22}{7} * 7 * (15 + 7)$

$TSA = 2 * 22 * (15 + 7)$

$TSA = 2 * 22 * 22$

$TSA = 968cm^2$

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3 years ago

X-4 greater than or equal to 12 and x/12 <2 graph the solution on a number line

Marianna [84]

Answer:

Step-by-step explanation:

x-4>=12 ====> x>=12+4 ======> x>=16

x/12<2 ====> x<12(2) ====> x<24

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2 years ago

Which two values of x are roots of the polynomial below?<br> 5x2 - 5x+1

Natalija [7]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

$5 {x}^{2} - 5x + 1 = 0$

$(x - \frac{5 + \sqrt{5} }{10} )(x - \frac{5 - \sqrt{5} }{10} ) = 0 \\$

Thus :

$x = \frac{5 + \sqrt{5} }{10} \\$

$x = \frac{5 - \sqrt{5} }{10} \\$

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3 years ago

I NEED HELP FAST!!!!

andrezito [222]

Step-by-step explanation:

<em>Exterior angle is same as sum of remote interior angles.</em>
Solving for x in each case below.

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IrinaK [193]

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or, 2(3x+5)

hope that picture helps :))

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