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Ipatiy [6.2K]
3 years ago
5

Find the values of A B C AND D of 4x^2 (2x^3+5x)= Ax^B +Cx^D

Mathematics
1 answer:
iren2701 [21]3 years ago
3 0

The values are A=8, B=5, C= 20 and D=3

Explanation:

The expression is 4x^{2} (2x^{3} +5x)=Ax^{B} +Cx^{D}

Simplifying, we get,

8x^{5} +20x^3=Ax^{B} +Cx^{D}

Since, both sides of the expression are equal, we can equate the corresponding values of A, B, C and D.

Thus, we get,

8 x^{5}=A x^{B} ⇒ A=8 and B=5

Also, equating, 20 x^{3}=C x^{D}, we get,

C=20 and D=3

Thus, the values are A=8, B=5, C= 20 and D=3

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Estimate the quotient of 87+43<br>a.1<br>b.3<br>c.2<br>d.4<br><br><br>answer fast plss..​
Naily [24]

Answer:

Option C .2

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A car costs$cents when new. It was sold for four fifths of its cost price. How much money was lost on the car.
REY [17]

The question is incomplete as the cost price isn't given. However, taking the cost price as x :

Answer:

Kindly check explanation

Step-by-step explanation:

Given :

A car costs$cents when new. It was sold for four fifths of its cost price. How much money was lost on the car.

Let :

Cost price when new = x

Cost price when sold = 4/5 * cost price when new

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Hence,

Amount of money lost on the car = (x - 4x/5)

x - 4x/5 = (5x - 4x) / 5 = x / 5

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7 0
2 years ago
How to solve: a parade traveled 4 miles in 2 hours. how far did tge parade travel per minute?
jek_recluse [69]

There's a really easy way to convert any units to other units.

Right now, we have the fraction  (4 miles) / (2 hours).

We want to find a fraction that's exactly equal to that one,
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Just take the original fraction, and multiply it by some other
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Each fraction you multiply it by must have the value of ' 1 ' so
you don't change the value of the original fraction.  But it can
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The second fraction is equal to ' 1 ', because the top and the bottom
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Multiply the fractions:  (4 miles x 1 hour) / (2 hour x 60 minutes)

Now you can cancel 'hour' from the top and the bottom, and you have

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Let's do it again, go a little farther, and get an answer that
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Multiply all three fractions: 

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You can cancel both 'mile' and 'hour' out of the top and bottom,
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1 year ago
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