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KIM [24]
4 years ago
6

Simplify: 3x2+4(2y+x2)3x2+4(2y+x2)

Mathematics
2 answers:
Alex73 [517]4 years ago
7 0
<span>3x2+4(2y+x2)
</span><span>3x2+8y+4x2
</span>7x^2+8y
Yanka [14]4 years ago
4 0

Answer:

7x^2 + 8y is the correct answer Hope this helps!

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Q#1: Amanda and Lisa are playing games at the arcade. Amanda started with $15, and the machine she is playing costs $0.75 per ga
Cloud [144]
Let D = the amount of money Deanna has after x games.

We know Deanna started with $15 and she spends 0.75 per game, so we can make the following equation:
D = 15 - 0.75x

Let L = the amount of money Lisa has after x games.

We know Lisa started with $13 and she spends 0.50 per game, so we can make the following equation:
L = 13 - 0.5x

The question is asking how many games need to be played for L and D to be equal, so just equate L and D and solve for x:

D = L
15 - 0.75x = 13 - 0.5x
15 - 13 = -0.5x + 0.75x
2 = 0.25x
2 = (1/4)x
8 = x

Therefore they need to play 8 games each to have the same amount of money.
5 0
3 years ago
Read 2 more answers
Twelve more than the product of a number and four is fewer than 60.
valina [46]
Product of a number and four is 4x 
<span>12 more than that is 12+4x </span>
<span>fewer than 60  </span>

<span>12 + 4x < 60</span>
7 0
3 years ago
Help 3 through 5 plz
Basile [38]

3. would be obtuse ( degree higher than 90 degrees)

4. would be acute ( degree lower than 90 degrees)

5. would be right ( degree exactly 90 degrees)

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4 0
4 years ago
7.9×10^-6 in standard notation.
vaieri [72.5K]
.0000079 because you would have to go 6 back since its negative
8 0
3 years ago
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Payments to Social Security recipients are indexed to the rate of inflation, as measured by the consumer price index. This means
Travka [436]

Answer:

increases payments to

Step-by-step explanation:

An inflation-indexed security is a security that guarantees a return higher than the rate of inflation if it is held to maturity.

-Inflation-indexed securities link their capital appreciation, or coupon payments, to inflation rates

-When inflation increases, so will payments to recipients.

3 0
3 years ago
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