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Degger [83]
3 years ago
6

Round 21,839 to the nearest 100

Mathematics
1 answer:
alex41 [277]3 years ago
8 0

Answer:

21,800

Step-by-step explanation:

800 is the hundreds place.

3 is less than 5, so 8 stays the same.

change all numbers after 8 to zeroes.

you get 21,800

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The table shows the proof of the relationship between the slopes of two perpendicular lines. What is the missing statement in st
Assoli18 [71]

Answer:

\frac{AB}{BC} = \frac{CE}{ED}

Step-by-step explanation:

Given

The attached proof

Required

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In (a), we have:

\triangle ABC \to \triangle CED

This implies that, the following sides are similar:

AB \to CE

AC \to CD

BC \to ED

An equation that compares the triangle can be any of:

\frac{AB}{BC} = \frac{CE}{ED}

\frac{AB}{AC} = \frac{CE}{CD}

.....

From the options;

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5 0
3 years ago
The manager of a grocery store wants to determine the average amount of money spent at his store as it compares to the average d
JulijaS [17]
For the manager's store

 Population size: 15
 Arithmetic mean (μ): 37.6
 Standard deviation (σ): 11,056

 For the competitor's store
 
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 Standard deviation (σ): 28,356

 For the manager's store the average is a better representation of the data since it does not have Outlier points in the box diagram. Also the median is close to the average.

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7 0
3 years ago
Please help and explain
Murrr4er [49]

Answer: Option A

x=\frac{3+i}{2} or x=\frac{3-i}{2}

Step-by-step explanation:

Use the quadratic formula to find the zeros of the function.

For a function of the form

ax ^ 2 + bx + c = 0

The quadratic formula is:

x=\frac{-b\±\sqrt{b^2-4ac}}{2a}

In this case the function is:

2x^2-6x+5=0

So

a=2\\b=-6\\c=5

Then using the quadratic formula we have that:

x=\frac{-(-6)\±\sqrt{(-6)^2-4(2)(5)}}{2(2)}

x=\frac{6\±\sqrt{36-40}}{4}

x=\frac{6\±\sqrt{-4}}{4}

Remember that \sqrt{-1}=i

x=\frac{6\±\sqrt{4}*\sqrt{-1}}{4}

x=\frac{6\±\sqrt{4}i}{4}

x=\frac{6\±2i}{4}

x=\frac{3\±i}{2}

x=\frac{3+i}{2} or x=\frac{3-i}{2}

3 0
4 years ago
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abruzzese [7]

-8n where n > 0 and whole number  (-8n/8=-n)

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7 0
3 years ago
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Ivanshal [37]
63+12x<15
12x<-48 (subtract 63 from both sides)
x<-4 (divide out the 12)
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3 years ago
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