3 years ago

I have to do corrections but I don’t even know how to do it ‍♀️ help??

Mathematics

1 answer:

Bad White [126]3 years ago

5 0

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Select the equation that is equivalent to the equation y-3 = 2(x + 5).

kakasveta [241]

Answer:y=2x+13

Step-by-step explanation:You would distribute the 2 to get y-3=2x+10. Then add the three over to get your final answer.

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If MrBeast bought 69 Lamborghini's and bought 420 Rolex watches how many items in all would he have bought altogether?

timama [110]

It’ll be 489 altogether

have a great day :)

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12 spheres of the same size are made from melting a solid cylinder of 1 cm diameter and 2 cm height. Find the diameter of each s

mars1129 [50]

The answer is: The diameter is 4 centimeters.

The explanation is shown below:

1. The volume of the cylinder is:

$Vc=r^{2}h \pi$

Where $r$ is the radius ( $r=\frac{16cm}{2}=8cm$ ) and $h$ is the height ( $h=2cm$ ).

Then:

$Vc=(8cm)^{2}}(2cm)\pi\\Vc=128\pi$

2. The total volume of the 12 spheres is:

$Vs=12(\frac{4}{3}r^{3}\pi)\\Vs=16r^{3}\pi$

3. The volume of the cylinder and the total volume of all the 12 spheres, are equal, therefore:

$Vc=Vs\\128\pi=16r^{3}\pi$

4. Now, you must solve for the radius:

$r=\sqrt[3]{\frac{128\pi}{16\pi}}\\r=2cm$

5. The diameter is:

$d=2r\\d=2(2cm)\\d=4cm$

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3 years ago

WHAT IS THE LENGTH OF THE SECOND BASE OF A TRAPEZOID IF THE LENGTH OF ONE BASE IS 27 AND THE LENGTH OF THE MIDSEGMENT IS 19 SHOW

timama [110]

Answer:

1/2 * (27 + x) = 19

27 + x = 38

x = 11

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3 years ago

Suppose that for a certain experiment p(b)equals=0.5 and p(avertical line upper bb)equals=0.2. find p(aintersect∩b).

raketka [301]

P(a | b) = p(a ∩ b)/p(b) . . . . . a definition worth remembering
0.2 = p(a ∩ b)/0.5 . . . . . . . . fill in the given values
0.2*0.5 = 0.1 = p(a ∩ b)

p(a ∩ b) = 0.1

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3 years ago