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2 years ago

Identify the expression equivalent to 16x + 24y

Mathematics

2 answers:

Lyrx [107]2 years ago

7 0

3. 8(2x + 3y)

I hope it helps you out

tatuchka [14]2 years ago

3 0

Correct answer is 3: 8 (2x + 3y)

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1.5 x 0.3 =<br> i’m desperate pls answer-

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Step-by-step explanation:

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3 years ago

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Find ????⋅ ???? if |????|=3 , |????|=9 , and the angle between ???? and ???? is π2 radians.

mrs_skeptik [129]

Answer:

$a{\cdot}b=0$

Step-by-step explanation:

It is given that,

Magnitude of a A, $|A|=3$

magnitude of B, $|B|=9$

The angle betwern a and b is $\dfrac{\pi}{2}\ rad=90^{\circ}$

Dot product,

$a{\cdot} b=|a||b|\ \cos\theta\\\\a{\cdot} b=3\times 9\times \ \cos(90)\\\\a{\cdot} b=0$

So, a.b is equal to 0.

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3 years ago

Find the remainder when f(x)=2x^3-x^2+x+1 is divided by 2x+1

Taya2010 [7]

Answer:

Step-by-step explanation:

By the remainder theorem, this is the same as finding f(-1/2), which is equal to 0.

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2 years ago

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Answer:

Supplementary means angles add to 180 which these two do so they are supplementary

Step-by-step explanation:

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2 years ago

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1. Consider a sphere with a radius of 18 inches.

makvit [3.9K]

Answer:

1. The surface area is $A=1296\pi \:in^2$ and the volume is $V=7776\pi \:in^3$ .

2. The diameter of the sphere is $d=\sqrt{\frac{2463}{\pi }}\approx 27.9999 \:cm$ .

Step-by-step explanation:

The surface area of a sphere is given by the formula

$A=4\pi r^2$

The volume enclosed by a sphere is given by the formula

$V=\frac{4}{3}\pi\cdot r^3$

where $r$ is the radius of the sphere.

1. From the information given we know that the sphere has a radius of 18 inches.

The surface area is

$A=4\pi \left(18\right)^2\\\\A= 4\cdot \:324\pi\\\\A=1296\pi \:in^2$

and the volume is

$V=\frac{4}{3}\pi \left(18\right)^3=\frac{4\pi 18^3}{3}=\frac{3^6\cdot \:2^3\cdot \:4\pi }{3}=7776\pi \:in^3$

2. The diameter of a sphere is given by $d=2r$ , where $r$ is the radius of the sphere.

We know that the surface area is 2463 square centimeters. To find the diameter of the sphere first we need to find the the radius.

$A=4\pi r^2\\\\2463=4\pi r^2\\\\4\pi r^2=2463\\\\r^2=\frac{2463}{4\pi }\\\\r=\frac{\sqrt{2463}\sqrt{\pi }}{2\pi }\approx13.99997 \:cm$

and the diameter is

$d=2\cdot \frac{\sqrt{2463}\sqrt{\pi }}{2\pi }=\sqrt{\frac{2463}{\pi }}\approx 27.9999 \:cm$

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3 years ago