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Natalka [10]
3 years ago
8

What fraction is equal to the decimal 0.84? Enter your answer in the box in simplest form.

Mathematics
2 answers:
sleet_krkn [62]3 years ago
6 0

Answer:

28/23

Step-by-step explanation:

blondinia [14]3 years ago
3 0

The answer would be 42/25

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Perform the multiplication, (7x2+a2)(x2–3a2)
aksik [14]

Answer:

The given multiplied expression is

(7x^2+a^2)(x^2-3a^2)=7x^4-20x^2a^2-3a^4

Step-by-step explanation:

Given expression is (7x^2+a^2)(x^2-3a^2)

To find the multiplication of the given expression :

(7x^2+a^2)(x^2-3a^2)

By using the distributive property to solve the given expression as below

(7x^2+a^2)(x^2-3a^2)=(7x^2)(x^2)+(7x^2)(-3a^2)+(a^2)(x^2)+(a^2)(-3a^2)

=7x^2.x^2-21x^2a^2+a^2x^2-3a^2.a^2

=7x^{2+2}-21x^2a^2+a^2x^2-3a^{2+2}  ( by using the property a^m.a^n=a^{m+n} )

=7x^4-21x^2a^2+a^2x^2-3a^4

Adding the like terms in the above expression we get

=7x^4-20x^2a^2-3a^4

Therefore (7x^2+a^2)(x^2-3a^2)=7x^4-20x^2a^2-3a^4

Therefore the given multiplied expression is

(7x^2+a^2)(x^2-3a^2)=7x^4-20x^2a^2-3a^4

8 0
3 years ago
0 A pigeon can fly at a speed of 84 kilometers per hour. How long does it take the pigeon to fly 7 kilometers
QveST [7]
The miles per hour is 84 kilometers per 60 minutes (7:5 ratio) so if we take seven kilometers times the ratio 5/7 we get 5 minutes
7 0
3 years ago
Find the area of an eqilateral triangle with the side of 6 inches
Elenna [48]

Answer:

The area of an equilateral triangle with the side of 6 inches = 15.59 inches²

Step-by-step explanation:

Formula:-

Area of equilateral triangle = √3a²/4  

Where 'a' is the side of equilateral triangle.

<u>To find the area of given triangle</u>

Here side a = 6 inches

Area = √3a²/4  

  = (√3 * 6²)/4

 = (1.73 * 36)/4  = 1.73 * 9 = 15.59 inches²

7 0
3 years ago
I need help with this .
Artist 52 [7]

Answer: electricity can be used to create magnetism

Step-by-step explanation:

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3 years ago
Jason plans to pay the water bill with two equal payments. Water:35$ Gas 14$
inna [77]

Answer:

Equal 2 payments of 17.50$.

4 0
3 years ago
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