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4 years ago

(4.9 x 10-2) (9.80 x 102) in scientific notation

2 answers:

7 0

If you mean (4.9*10^-2) times (9.80*10^2) then the product is 4.802*10^1 in scientific notation.

Anastasy [175]4 years ago

6 0

Uma resposta desta desa e bem na cara e R=46981.2

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a square red rug has a purple square in the center. the side length of the purple square is x inches. the width of the red band

Bumek [7]

Answer:

Area of red band is $(20x + 100) inch^{2}$

Step-by-step explanation:

We know that area of square = $side^{2}$

Please refer to the attached figure, we have to calculate the area of red band.

Required area = Area of square ABCD - Area of purple square

Side of purple square = $x$

So, area of purple square = $x^{2}$

ABCD is a square with purple square at the center and there is symmetry in the figure.

So, width of red band towards both the end is 5 inches.

$\Rightarrow \text{side of }ABCD = 5 + 5 +x = (x+10) inches$

Required area = $(x+10)^{2} - x^{2}$

Using formula $a^{2} - b^{2} = (a-b)\times (a+b)$

$\Rightarrow (x+10-x)(x+10+x)\\\Rightarrow (10)(2x+10)\\\Rightarrow (20x+100)$

Hence, Area of red band is $(20x + 100) inch^{2}$

5 0

3 years ago

Please help me on 32 thx :)

lapo4ka [179]

The answer is A because Katie saved twice as much as Rachel, plus five dollars more I think

8 0

3 years ago

a couch and coffee table cost a total of $1208. the cost of the couch is three times the cost of the coffee table. find the cost

Elena-2011 [213]

The coffee table is $302, and the couch is $906. Divide the total price by 4 and multiply that number by three. Add the two numbers to check. Hope this helps!

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3 years ago

Please help asap!!!

yulyashka [42]

Answer:

This is a trick that I have learned

Step-by-step explanation:

Just right click on the question or answer

Then click inspect element

and the question will tell you which answer is actually correct

and the answer will tell you if it is correct or not.

4 0

3 years ago

By the age of 21, the best violinist and pianist will have practiced at least 10,000 hours. If you practice and instrument 45 mi

Alika [10]

Answer:

273.94 hours.

Step-by-step explanation:

1 day = 0.75 hours of practicing in a day.

365.25 = x

1/365.25 = 0.75/x Cross multiply

x = 0.75 * 365.25 Combine

x = 273.94 hours

8 0

3 years ago