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2 years ago

Evaluate this expression |-5| =

Mathematics

2 answers:

777dan777 [17]2 years ago

6 0

The absolute value of something means it's distance from 0, so |-5|=5

allochka39001 [22]2 years ago

4 0

5, This is absolute value right? Absolute value is almost like the opposite of the numer

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Please answer this question

Vladimir [108]

Answer:

a = 3/2
b = -1/2

Step-by-step explanation:

$\dfrac{\sqrt{5}-1}{\sqrt{5}+1}=\dfrac{(\sqrt{5}-1)(\sqrt{5}-1)}{(\sqrt{5}+1)(\sqrt{5}-1)}\\\\=\dfrac{5-2\sqrt{5}+1}{5-1}=\dfrac{6-2\sqrt{5}}{4}\\\\=\dfrac{3}{2}-\dfrac{1}{2}\sqrt{5}$

Comparing this to the form a+b√5, we see that ...

a = 3/2

b = -1/2

8 0

3 years ago

2hr 57min+3hrs42min

Ber [7]

Answer:

6 hrs 33 minutes

Step-by-step explanation:

2hr 57min

+3hrs42min

----------------------

5 hrs 99 minutes

But 1 hr = 60 minutes so subtract 60 minutes and add 1 hour

6 hrs 33 minutes

4 0

2 years ago

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How to do similar shapes.

Lynna [10]

Similar shapes are just shapes that have the same proportions and relative size. For example, a square that's 4 x 4 and a square that's 2 x 2. Although one's smaller, they are both the similar shapes.

7 0

2 years ago

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The plant-breeding department at a major university developed a new hybrid boysenberry plant called Stumptown Berry. Based on re

MaRussiya [10]

Answer:

$\text{Null hypothesis}: H_0:\mu=90\\\\\text{Alternative Hypothesis}:\mu\neq 90$

Step-by-step explanation:

Given claim : From the time shoots are planted 90 days on average are required to obtain the first berry.

. The sample mean is 92.3 days. The corporation wants to know if the mean number of days is different from the 90 days claimed.

As we know that the null hypotheses shows there is no statistical difference between the groups but the alternative hypothesis is opposite to it, it shows there is difference.

Thus , the correct hypotheses will be :-

$\text{Null hypothesis}: H_0:\mu=90\\\\\text{Alternative Hypothesis}:\mu\neq 90$

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2 years ago

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Snezhnost [94]

I believe it's the first option. Hope this helps.

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3 years ago

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