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3 years ago

Please help asap.......

Mathematics

1 answer:

adoni [48]3 years ago

5 0

Answer:

it's d

Step-by-step explanation:

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A rectangular solid with a square base has a volume of 4096 cubic inches - determine the dimensions that yield the minimum surfa

Bumek [7]

Answer:

side of base, a = 10.1 inches, height, h = 40.1 inches

Step-by-step explanation:

Volume of rectangular solid, V = 4096 cubic inches

Let the side of base is a and the height is h.

$V = a^2h\\\\4096 = a^2 h ..... (1)$

surface area of the solid

$S = 2a^2 + 4 ah \\\\S = 2a^2 + 4 \times a \times \frac{4096}{a^2} from (1)\\\S = 2a^2 + \frac{4096}{a}\\\\\frac{dS}{da}= 4 a - \frac{4096}{a^2}\\\\4 a - \frac{4096}{a^2} = 0 \\\\a^3 = 1024\\\\a =10.1 inches$

So, h = 40.2 inches

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3 years ago

What is the combined mass of the moon(7.3*10^22)earth(590*10^22)and pluto(1.3*10^22)

yan [13]

It's the sum of the three masses:

$7.3\cdot10^{22} + 590\cdot10^{22} + 1.3\cdot10^{22} = (7.3 + 590 + 1.3)10^{22} = 598.6\cdot10^{22}$

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3 years ago

A 25-foot ladder is placed against a building and the top of the ladder makes a 32°

VLD [36.1K]

Answer:

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3 years ago

11X - X2 +4y2 = 52<br> how do i solve and graph

timofeeve [1]

<h3>I'll teach you how to solve 11X - X2 +4y2 = 52</h3>

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11X - X2 +4y2 = 52

Add similar elements:

9x+4*2y= 52

Multiply the numbers 4*2:

4*2= 8

9x+8y= 52

Subtract 8y from both sides:

9x+8y-8y= 52- 8y

Simplify:

9x= 52- 8y

Divide both sides by 9:

9x/9= 52/9 - 8y/9

Simplify:

x= $\frac{52-8y}{9}$

Your Answer Is $x= \frac{52-8y}{9}$

Plz mark me as brainliest if this helped :)

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3 years ago

Distance (1,-3) and (7,-8)

GuDViN [60]

Answer:

√61

Step-by-step explanation:

Using

√(y2-y1)^2 + (x2-x1)^2

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3 years ago