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Nostrana [21]
3 years ago
15

Jacob earned $80 babysitting and deposited the money into his savings account. The next week he spent $85 Lon video games. Use i

ntegers to describe the weekly changes in Jacob's savings balance.
Mathematics
1 answer:
nexus9112 [7]3 years ago
5 0
After one week, Jacob has earned $80 from babysitting, so his change is an increase of $80.  The next week, he spends $85, so he experiences a decrease of $85.  Over the two weeks, his overall change is $80-$85=-$5, or a decrease of $5.
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sineoko [7]

Answer:

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Step-by-step explanation:

Given  

f(x)= 2^(x/2)

And

g(x)= √(x-3)

We have to find (g+f)(x)

In order to find (g+f)(x), both the functions are added and simplified.

So,

(g+f)(x)= √(x-3)+2^(x/2)  

The power x/2 can be written as a product of x*(1/2)

(g+f)(x)= √(x-3)+(2)^(1/2*x)

We also know that square root dissolves into power ½

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We can see that power ½ is common in both functions so taking it out

(g+f)(x)=(x-3+2^x)^(1/2)

Arranging the terms

(g+f)(x)=(2^x+x-3)^(1/2)  ..

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4 years ago
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vova2212 [387]
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<span>3 * x^2 - x - 4 = (3 * x - 4) * (x + 1) = (3x - 4) * (x + 1)
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3 years ago
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Answer:

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Step-by-step explanation:

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The amount of money left on Jessica's card is ...

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These amounts are the same when ...

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<em>Additional comment</em>

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