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Karolina [17]
2 years ago
15

The temperature was -5 degrees at 5:00 am. After 2 hours, the temperature increased by 39 degrees. What was the temperature at 7

:00 am?
Mathematics
1 answer:
Nesterboy [21]2 years ago
5 0

Answer: 34 degrees

Step-by-step explanation:

The starting temperature was -5 degrees at 5am, and after two hours, the temperature was 34 degrees at 7am. The temperature increased by 39 degrees, how did we get this answer?

You add -5 and 39

-5 + 39 = 34

A tip for adding negatives:

When you get a problem similar to -5 + 39, you can actually flip them around if you need an easier understanding. So it would be 39 - 5. Both equations still equal 34 as long as you keep the values of each number!

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An estimated 40% of all people were born after the year 2000. If two people are selected at random from around the world, what a
sukhopar [10]

The chances that NEITHER of these two selected people were born after the year 2000 is 0.36

<h3>How to determine the probability?</h3>

The given parameters are:

Year = 2000

Proportion of people born after 2000, p = 40%

Sample size = 2

The chances that NEITHER of these two selected people were born after the year 2000 is calculated as:

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Evaluate the exponent

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Hence, the chances that NEITHER of these two selected people were born after the year 2000 is 0.36

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4 0
1 year ago
How do i express x^2-3x into the form of (x-m)^2+n. I will give brainliest to correct answer
mel-nik [20]

Step-by-step explanation:

let's simply do the multiplications and then compare with the original.

(x-m)² + n

right ?

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let's go for the first.

x² - 2mx + m² + n = x² - 3x

-2mx + m² + n = -3x

fun there we see two things :

-2m = -3

m = 3/2

and

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n = -9/4

so our transformed expression looks like

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7 0
3 years ago
Sarah completed about 85% of her school homework. Her friend Emily completed x percent homework more than Sarah. Which expressio
Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

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100 represents total completion

8 0
3 years ago
Read 2 more answers
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