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3 years ago

Find the volume of the pyramid

Mathematics

2 answers:

Levart [38]3 years ago

6 0

Volume= 192
pls make me branliest hope this helped

Scorpion4ik [409]3 years ago

5 0

The answer is V=384.

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Use the identity (x+y)(x2−xy+y2)=x3+y3 to find the sum of two numbers if the product of the numbers is 28, the sum of the square

fgiga [73]

Answer:

Step-by-step explanation:

1) f(x) = x+y , xy = 49 --> f(x) = x+49/x

f '(x) = 1-49/x2 , x = ±√49 , choose x = +7

y = 49/x = 7

smaller = 7

larger = 7

2) Vertical Distance is difference between the two functions

V(x) = x+56 - x2, V '(x) = 1 -2x --> x = 1/2 --> V(1/2) = 56.25 <---Max Vertical distance

Boundary at -7 and 8 are less

3) I googled the equation, it is really y(n) = kn/(49+n2)

y '(n) = (k(49+n2) - 2kn2)/(49+n2) , Setting to zero, k(49+n2) -2kn2 = 0 , n = 7

4) Let x and y be the sides of the rectangle. A = xy = 37.5 Million or y = 37.5/x

The length of the fences is f(x) = 2x + 3y = 2x+112.5/x

f '(x) = 2-112.5/x2 --> x = √56.5 = 7.5 and y = 37.5/7.5 = 5 then scale by √Million

smaller = 5000 ft and larger = 7500 ft

this took me ages to work out so hopefully it helped

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2 years ago

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5(–9x + 1) + 5 = –10x + 5(–7x + 2)

nikklg [1K]

Answer:-

here's the answer

3 0

2 years ago

X - 7 divide by 3 = 4x divide by 5

9966 [12]

Hey here is my ans.... Catch it.... ❤️ ❤️ ❤️ Pls mark as brainliest ❤️

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3 years ago

Find the domain of the function.

timurjin [86]

When taking square roots, you can't take square roots of negative roots of negative numbers. So, what will work for the domain of u(x) is what makes u(x) zero or more. We can make an inequality for that.

u(x) ≥ 0.

$\sqrt{9x+27} \geq 0$

9x + 27 ≥ 0 by squaring both sides

9x ≥ -27

x ≥ -3

So the domain of the function is when x ≥ -3 is true.

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3 years ago

Simplify the expression to a single numerical value. 3x2^3 x 2x3^2.

matrenka [14]

It’s wants 20 characters lol but the answer is b

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3 years ago