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Serjik [45]
3 years ago
5

How to round 42429 to the nearest hundred thousand

Mathematics
1 answer:
astra-53 [7]3 years ago
8 0
42300 you go down because the 2 is less than 5
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What is the sum? StartFraction 3 y Over y squared + 7 y + 10 EndFraction + StartFraction 2 Over y + 2 EndFraction
katovenus [111]

Answer:

\dfrac{5}{y+5}

Step-by-step explanation:

Here, we have to find the sum of 2 fractions:

1st fraction: \dfrac{3y}{y^{2}+7y+10}

2nd fraction: \dfrac{2}{y+2}

Considering the denominator of 1st fraction:

y^{2}+7y+10

Using factorization method:

7y can be written as (2y + 5y).

\Rightarrow y^{2}+2y+5y+10

Taking <em>5 common</em> from 5y+10 and <em>y common</em> from y^{2}+2y: \Rightarrow y(y+2)+5(y+2)

Now taking (y+2) common:

\Rightarrow (y+5)(y+2)

\dfrac{3y}{y^{2}+7y+10} can be written as \dfrac{3y}{(y+5)(y+2)}

Now, calculating the sum:

\dfrac{2y}{(y+5)(y+2)} + \dfrac{2}{y+2}

Taking <em>LCM</em> and solving:

\Rightarrow \dfrac{3y+2(y+5)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5y+10}{(y+5)(y+2)}\\\Rightarrow \dfrac{5(y+2)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5}{(y+5)}

Hence, answer is \dfrac{5}{y+5}.

4 0
3 years ago
Which mapping diagram represents a relationship that is a function?
Georgia [21]
Mapping A would be the one
3 0
3 years ago
2 of 9
emmainna [20.7K]

Answer:

C

Step-by-step explanation:

You start with 3 and subtract a number

6 0
2 years ago
Please help me answer this question​
Drupady [299]

Answer:

64 ft^3

Step-by-step explanation:

Assuming that all of the values (length [l], width [w] and height [h]) are all 4ft then using the calculation l x w x h, we can see that the answer is 64ft^3.

I hope this helps!

[Hey if this is wrong, don't post a rude reply! Message me and I will try to correct the answer!]

4 0
3 years ago
If triangle ABC is congruent to XYZ, which statement is always true
Gre4nikov [31]

Answer:

B.

Step-by-step explanation:

BC and YZ are the two angles at the end of both equations, and will always line up in the triangle.

(hope this helps!)

3 0
3 years ago
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