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mr_godi [17]
3 years ago
10

Is ratio 4.2:1.5 proportional to 12.6:4.5

Mathematics
1 answer:
Gennadij [26K]3 years ago
5 0
If we divide 12.6/4.5 by 3 we receive 4.2/1.5. So yes they are proportional. <span />
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Determine the solution for the system of equations below.
NeX [460]

Answer:

(0,0)

Step-by-step explanation:

4x + 4x = 0

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8x / 8 = 0 / 8

 x = 0

y = 4x

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8 0
3 years ago
You and your friend meet at the movie theater to see Flying Ninja Toenails 5p of Death. You arrive at 5:40. Your friend arrives
NikAS [45]

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Wait for 32minutes.

Step-by-step explanation:

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You own 17 CDs. You want to randomly arrange 5 of them in a CD rack. What is the probability that the rack ends up in alphabetic
amid [387]

The probability that all five end up in alphabetical order is; 1/120.

<h3>What is the probability that the rack ends up in alphabetical order?</h3>

To evaluate the given probability; first, the number of possible arrangements is;

17P5 = 742,560 possible arrangements.

However, the chance of an alphabetical order arrangement in each case is; 1 out of 5! possible arrangements.

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5 0
2 years ago
86,456 estimation is?
goblinko [34]
I think around... 87,000
6 0
3 years ago
Read 2 more answers
Consider the derivation of the quadratic formula below. What is the missing radicand
Vedmedyk [2.9K]

Answer:

\frac{b^2 - 4ac}{4a^2}

Step-by-step explanation:

Given

See attachment for complete question

Required:

Complete step 6

At step 5, we have:

(x + \frac{b}{2a})^2 = \frac{b^2}{4a^2} - \frac{4ac}{4a^2}

Take LCM

(x + \frac{b}{2a})^2 = \frac{b^2 - 4ac}{4a^2}

Take square roots of both sides to get step 6

x + \frac{b}{2a} = \±\sqrt{\frac{b^2 - 4ac}{4a^2}}

Hence, the missing radicand is: \frac{b^2 - 4ac}{4a^2}

5 0
3 years ago
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