2 years ago

The lowest temperature on May 15 is 23 as warm as the warmest temperature on May 15. The lowest temperature on May 15 is 60ºF.

Mathematics

2 answers:

Damm [24]2 years ago

5 0

90 i believe shhdjddiejxjjdjddjfi

rodikova [14]2 years ago

5 0

Answer:

i think it would be 90

Step-by-step explanation:

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Alyssa spent $15 at the mall yesterday. She now has $30 left in her purse.

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She had 45$ before she spent it. 30+15

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2 years ago

2/5 of the population has blood type A. 23/50 have blood type O. What fraction of the population had either blood type A or O?

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25/55 people have either A or O

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3 years ago

Which expression is equivalent to the following complex fraction? StartFraction 1 Over x EndFraction minus StartFraction 1 Over

Darina [25.2K]

Answer:

$\frac{y-x}{x+y}$

Step-by-step explanation:

We are given that fraction

$\frac{\frac{1}{x}-\frac{1}{y}}{\frac{1}{x}+\frac{1}{y}}$

We have to find the expression which is equivalent to given fraction .

$\frac{1}{x}-\frac{1}{y}=\frac{y-x}{xy}$

$\frac{1}{x}+\frac{1}{y}=\frac{x+y}{xy}$

Substitute the values then, we get

$\frac{\frac{y-x}{xy}}{\frac{y+x}{xy}}$

We know that

$\frac{\frac{a}{b}}{\frac{x}{y}}=\frac{a}{b}\times \frac{y}{x}$

Using the property then, we get

$\frac{y-x}{xy}\times \frac{xy}{x+y}$

$\frac{y-x}{x+y}$

This is required expression which is equivalent to given expression.

6 0

3 years ago

Read 2 more answers

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ElenaW [278]

Answer:

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Step-by-step explanation:

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2 years ago

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The result of adding a complex number to its conjugate is “an integer/a pure imaginary number/a real number/a whole number” and

sineoko [7]

Answer:

If Z is a complex number:

Z = a + b*i

where a and b are real numbers, and i is an imaginary number.

Then "a" is the real part.

"b*i" is the imaginary part.

The conjugate of Z is:

Zc = a - b*i

So the sign of the imaginary part changes.

Then:

Sum:

Z + Zc = (a + bi) + (a - bi) = 2*a + 0 = 2*a

and remember that a is a real number, then 2*a is also a real numer.

The correct answer is "A real number".

Difference:

Z - Zc = (a + bi) - (a - bi) = 2b*i

and this is a pure imaginary number, so here the correct answer is: "a pure imaginary number"

6 0

2 years ago