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3 years ago

A triangle has side lengths of 15 centimeters, 11

Mathematics

2 answers:

BabaBlast [244]3 years ago

6 0

Answer:

scalene

Step-by-step explanation:

a scalene is a triangle that all sides have different measurements

Crank3 years ago

5 0

Answer:

scalene

Step-by-step explanation:

a scalene triangle is a triangle that doesn't have any congruent sides For example, this triangle

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I need help with this problem

ruslelena [56]

B=24 divide 6 by both sides

part B times 144 to 9

1296 is the anwer

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2 years ago

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Simplify -4b + (-9k) -6 - 3b + 12

Olenka [21]

Answer:

-7b-9k+6

Step-by-step explanation:

-4b+(-9k)-6-3b+12

(-4b-3b)+(-9k)+(-6+12)

-7b+(-9k)+6

-7b-9k+6

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3 years ago

George bought a cylindrical water tank for his garden, but he forgot to ask the seller what the diameter of the tank was. He nee

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Answer:

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Step-by-step explanation:

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2 years ago

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Find the surface area of the part of the circular paraboloid z=x^2+y^2 that lies inside the cylinder X^2+y^2=1

hichkok12 [17]

Answer:

$\mathbf{\dfrac{\pi}{6}[5 \sqrt{5}-1]}$

Step-by-step explanation:

Given that:

The surface area (S.A) $z = x^2 +y^2$

Hence the S.A is of form z = f(x,y)

Then the S.A can be represented with the equation

$A(S) = \iint _D \sqrt{1+ (\dfrac{\partial z}{\partial x})^2+ (\dfrac{\partial z}{\partial y})^2} \ dA$

where :

D = cylinder $x^2 +y^2 =1$

In polar co-ordinates:

D = {(r, θ): 0≤ r ≤ 1, 0 ≤ θ ≤ 2π)

Similarly, $\dfrac{\partial z}{\partial x} = 2x$ and $\dfrac{\partial z}{\partial y} = 2y$

Therefore;

$S.A = \iint_D \sqrt{1+4x^2+4y^2} \ dA$

$= \iint_D \sqrt{1+4(x^2+y^2)} \ dA$

$= \int^{2 \pi}_{0} \int^{1}_{0} \sqrt{1+4r^2} \ r \ dr \d \theta$

$= [\theta]^{2 \pi}_{0} \dfrac{1}{8}\times \dfrac{2}{3}\begin {bmatrix} (1+4r^2)^{\dfrac{3}{2}}\end {bmatrix}^1_0$

$= 2 \pi \times \dfrac{1}{12}[5^{\dfrac{3}{2}} - 1]$

$\mathbf{=\dfrac{\pi}{6}[5 \sqrt{5}-1]}$

6 0

3 years ago

Which of the following number lines represents the compound inequality shown below?

OLEGan [10]

Answer:

I'm not really sure what the question might be asking or if I've been given all the information but this is how you would solve it as (-2,4] meaning any real number between these will give you a real x on the domain.

Step-by-step explanation:

$-4 < 3x + 2 \leqslant 14 \\ - 6 < 3x \leqslant 12 \\ - 2 < x \leqslant 4$

6 0

3 years ago