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4 years ago

8

Please help me with this question #16

1 answer:

Zigmanuir [339]4 years ago

8 0

The answer is D! The answer is D because is you put 2 square root 3 it should be equal as the same thing as square root 96/8!

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What is the difference between earth's highest mountain and its deepest ocean canyon?what is the difference between mars highest

irinina [24]

Earth's Highest Mountain: Mount Everest = 29,029 ft
Earth's Deepest Ocean Canyon: Challenger Deep = - <u>(-)36,070 ft
</u>Total Difference ----------------------------------------------------- 65099 ft

Mars' Highest Mountain: Olympus Mons = 69,650 ft Mars' Deepest Ocean Canyon: Valles Marineris = - <u>(-) 23000 ft
</u>Total Difference ----------------------------------------------------- 92650 ft

<em>ANSWER: Mars has greater difference of Highest Mountain - Deepest Ocean Canyon. It differ with that of Earth's by 27, 551 ft</em>

6 0

3 years ago

What’s the answer???(ONLY ANSWER IF YOU KNOW PLEASE)

arsen [322]

x-4 needs to be greater or equal to zero so

[4, ∞) is the answer

3 0

4 years ago

Express each of the as the sum of a whole number and a fraction .

Alla [95]

im not 100% sure if my answers are right but heres what i got:

b. 3 and 1/2

d. 2 and 1/3 (or 2 3/9)

3 0

4 years ago

Read 2 more answers

Determine the dimensions of a rectangular solid (with a square base) with maximum volume if its surface area is 181.5 square cen

3241004551 [841]

Answer:

The base and height of the solid is 5.5cm

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Step-by-step explanation:

Given

$Surface\ Area = 181.5cm^2$

Required

Determine the dimensions that maximizes the volume

Let the base dimension be x and the height be h

The volume is calculated as:

$Volume =x^2 * h$

$Volume =x^2h$

181.5 =x^2h

The surface area (S) is calculated as this:

$S = 2(x^2 + xh + xh)$

$S = 2(x^2 + 2xh)$

$S = 2x^2 + 4xh$

Substitute 181.5 for S

$181.5 = 2x^2 + 4xh$

Make h the subject:

$4xh = 181.5 - 2x^2$

$h = \frac{181.5 - 2x^2}{4x}$

Substitute $h = \frac{181.5 - 2x^2}{4x}$ in $Volume =x^2h$

$V = x^2(\frac{181.5 - 2x^2}{4x})$

$V = x(\frac{181.5 - 2x^2}{4})$

$V = \frac{1}{4}(x)(181.5 - 2x^2)$

$V = \frac{181.5x}{4} - \frac{2x^3}{4}$

$V = \frac{181.5x}{4} - \frac{x^3}{2}$

To get the maximum, we differentiate V with respect to t and set the differentiation to 0

$dV = \frac{181.5}{4} - \frac{3x^2}{2}$

Set to 0

$0 = \frac{181.5}{4} - \frac{3x^2}{2}$

$\frac{3x^2}{2} = \frac{181.5}{4}$

Multiply through by 4

$4 * \frac{3x^2}{2} = \frac{181.5}{4} * 4$

$2*3x^2 = 181.5$

$6x^2 = 181.5$

$x^2 = \frac{181.5}{6}$

$x^2 = 30.25$

$x = \sqrt{30.25$

$x = 5.5$

Recall that:

$h = \frac{181.5 - 2x^2}{4x}$

$h = \frac{181.5 - 2 * 5.5^2}{4 * 5.5}$

$h = \frac{181.5 - 60.5}{22}$

$h = \frac{121}{22}$

$h = 5.5$

So, we have:

$h = 5.5$

$x = 5.5$

<em>Hence, the base and height of the solid is 5.5cm</em>

7 0

3 years ago

Ok, I don't have a question, so I am just doing this for fun. This is for 7th-8th graders, I am higher than those grades

nadezda [96]

Answer:

73

Step-by-step explanation:

If you are to use Order of Operations, which most people know as PEMDAS, you come up with the following answer.

I will show my work below. Refer to it if you need to.

4x^2+5^2

16x+25

x=3, so 48 + 25

73

5 0

4 years ago

Read 2 more answers