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3 years ago

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 5 common from $5y+10$ and y common 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 LCM 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:

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:

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