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vivado [14]
3 years ago
9

How to answer this question

Mathematics
1 answer:
Sonbull [250]3 years ago
6 0
Look at picture for details

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The combined area of two squares is 45 square centimeter each side of one square is twice as long as the side of another square
Roman55 [17]

Let x be the side length of the small square. Then, the side length of the big square is 2x.

The respective areas are x^2 and (2x)^2=4x^2

So, the sum of the areas are x^2+4x^2=5x^2

We have

5x^2=45 \iff x^2=9 \iff x=\pm 3

We can't have negative lengts, so we choose x=3

So, the side length of the larger square is 6.

8 0
3 years ago
Find the speed taken for the following journey:<br> 31.64 km in 7 hours
GarryVolchara [31]

Answer:

speed =  \frac{distance}{time}  \\  =  >  \frac{31.64}{7}  \\  =  > 4.52m

hope helpful <3

5 0
3 years ago
2 doctors is what % of 25 doctors
Elanso [62]

For this case we propose a rule of three:

25 ------------> 100%

2 --------------> x

Where the variable "x" represents the percentage equivalent to 2 doctors.

x = \frac {2 * 100} {25}\\x = 8

Thus, 2 doctors represent 8% of 25

Answer:

2 doctors represent 8% of 25

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B7%7D%7B8%7D%20%2B%201%20%5Cfrac%7B1%7D%7B2%7D%20" id="TexFormula1" title=" \frac{
mart [117]

To add fractions together, you must convert the smaller fraction (\frac{1}{2}) to a denominator that matches the other fractions denominator.

In this case, 1/2 would become 4/8

We can add 4/8 to 7/8 to get 11/8

Then we can add the 1 to it, which acts as 8.

Which gives us 19/8

Or 2 3/8


5 0
3 years ago
What is the product3(x)^5(2x^2+4x+1)
ryzh [129]

Answer: 6x^7+ 12x^6+ 3x^5

Hope that helped

4 0
3 years ago
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