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3 years ago

a piggy bank contains 50 coins of pennies, nickels, dimes, quarters, half-dollars that equal $8.32 how many of each

Mathematics

1 answer:

Usimov [2.4K]3 years ago

4 0

where is the rest of the question?

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Which expression is equivalent to 2j 5j?

Oliga [24]

2j+5j=7j Just add the two together.

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3 years ago

Partial fraction decomposition<br> 20x+9/25x^2+20x+4

ozzi

Step-by-step explanation:

We have

$\frac{20x + 9}{25 {x}^{2} + 20x + 4 }$

Let's factor the denomiator first,

the denomaitor is a perfect square so we get

$\frac{20x + 9}{(5x + 2) {}^{2} }$

Now, we must think of two fractions that

$\frac{a}{(5x + 2) {}^{2} } + \frac{b}{5x + 2}$

We use a perfect square term for one fraction, then a linear one for the next, because if we set both of the denomiator to the same factor, we would get a inconsistent system.

So right now, we have

$\frac{a}{(5x + 2) { }^{2} } + \frac{b}{5x + 2} = \frac{20x +9 }{25 {x}^{2} + 20x + 4 }$

$a + (5x + 2)b = 20x + 9$

$5b (x)= 20$

$a + 2b = 9$

$b = 4$

so that means that a is

$a + (2)(4) = 9$

$a + 8 = 9$

$a = 1$

So our equation is

$\frac{1}{(5x + 2) {}^{2} } + \frac{4}{5x + 2}$

6 0

3 years ago

Adding and subtracting functions<br>g(t) = −3t^3 − 4t f (t) = 4t − 4 Find g(t) + f (t)

ElenaW [278]

I believe the answer is -27t - 4

7 0

3 years ago

Help help I’ll give u a thank u if u get it right

madreJ [45]

Answer:

Step-by-step explanation:

-49 because 7 multiplied by its self is 49 and since the exponent is negative its -49.I THINKKKKK DON'T KILL ME IF YOU GET IT WRONG.

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3 years ago

(8x-20) (5x+37) apply angle theorem find x

Studentka2010 [4]

Value of x = 19

(8x - 20) = (5x + 37)
3x = 57
x = 19

7 0

3 years ago