3 years ago

-3x^2-24x-13=-13 intermediate step

Mathematics

1 answer:

Novay_Z [31]3 years ago

7 0

Answer:

x=-8, x=0

Step-by-step explanation:

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The sum of 45% of a number and 55% of the same number is 200. what is the number?

Ymorist [56]

.45x+.55x=200
Combine like terms
1x=200
So x is 100

Or you can do 45%+55%=100%
And 100% of 200 is 200

8 0

3 years ago

Please help me with this! I need this ASAP! Please help!

sladkih [1.3K]

Answer:

The 2nd and 3rd boxes are right, that is :-

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3 years ago

A water park sold 14 child tickets and 6 adult tickets. What percentage of

steposvetlana [31]

Total tickets sold :
14 + 6 = 20

fraction of child tickets sold = 14/20

then, we convert this fraction to %.

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3 years ago

Read 2 more answers

Examine the fraction 3+2i4−2i. Which expression is the first step to simplify the fraction? 3+2i4−2i⋅3−2i3−2i

umka2103 [35]

Answer:

The correct answer is the last option.

Step-by-step explanation:

When you have a fraction with complex numbers, the first step to simplify is to multiply up and down the conjugate of the denominator, this will eliminate the complex part of the denominator, and in this way you can separate the expression in its real and complex part.

For the expression:

$\frac{3 + 2i}{4-2i
}$