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3 years ago

Find The Surface Area

Mathematics

2 answers:

omeli [17]3 years ago

7 0

A = (12 x 8 x 3) + (1/2 x 8 x 6.9) + (1/2 x 8 x 7 x 3)

A = 288 + 27.6 + 84

A = 399.6 m²

Aleksandr [31]3 years ago

4 0

Answer:

A = (12 x 8 x 3) + (1/2 x 8 x 6.9) + (1/2 x 8 x 7 x 3)

A = 288 + 27.6 + 84

A = 399.6 m²

Step-by-step explanation:

The area =12(8x3)+(1/2)(8x6.9)+(1/2)(7x3)

The area = (288)+(27.6)+(84)

The area = 399.6 m ²

You might be interested in

Four more than twice a number a.2x+4 b.4x+2 c.6x d.2x > 4

makkiz [27]

Answer:

a. 2x + 4

Step-by-step explanation:

Four more than twice a number

Let x = unknown number

Four more than twice of x

Twice of x can be written as 2x

Four more than 2x

Four more can be written as + 4

We get 2x + 4

6 0

3 years ago

Find The slope of the line described by x+2y=8

Harman [31]

Answer:

$Slope = m = \frac{-1}{2}$

Step-by-step explanation:

The equation of a line in slope-intercept form is.

$y = mx + b$ ----->(eq 1)

∴ m is slope

$x+2y=8$

subtract x from both sides.

$x - x +2y= - x + 8$

$2y= - x + 8$

divide - 2 on both sides

$\frac{2y}{2} = \frac{ - x + 8}{2}$

$y = \frac{ - x}{2} + \frac{8}{2}$

$y = \frac{ - 1}{2}x + 4$ ----->(eq 2)

By comparing (eq 1) and (eq 2)

$m = \frac{-1}{2}$

$Slope = m = \frac{-1}{2}$

7 0

3 years ago

the mass of a certain grain of rice is about 3 x 10^-2 grams. The mass of a certain grain of salt is about 6 x 10^-5 grams.

lina2011 [118]

Answer:

Step-by-step explanation:

Rice: 3 x 10^-2 = 0.03 grams

Salt: 6 x 10^-5 = 6e-5 grams

4 0

3 years ago

2,4*10 31,56*10 3,7*100

ki77a [65]

Answer:

Step-by-step explanation:

1. 24

2. 315.6

3. 370

hopefully this helps and sorry if i did it wrong god bless love

4 0

3 years ago

The cost of buying a mobile phone is 30% of the cost of buying a computer. if it costs $800 to buy a computer ,how much is the m

Mama L [17]

Answer:

$240

Step-by-step explanation:

30/100×800

=30×8

=$240

Therefore, The cost of mobile phone is $240.

(would appreciate it if you could mark me the brainliest :))

7 0

2 years ago