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Lerok [7]
3 years ago
11

HELP ASAP

Mathematics
2 answers:
vova2212 [387]3 years ago
7 0

Answer:

1. A. 4 terms

There are 4 different values in the expression, so therefore there are 4 terms.    

2. D. 3x^2 + 6x + 10

To get the answer...

start with the original expression: 3x^2 + x + 10 + 5x

add the like terms together, in this case you'd add x + 5x

you'll get: 3x^2 + 6x + 10

I hope I could help :)

timama [110]3 years ago
5 0
1. Well, first of all, a term in an equation is the variables and/or numbers when they are together. For something to be one term, it cannot be added or subtracted or else, that is more that one term and if it is a term, then it can multiplied or divided.
In this equation: 4x + 6 + 5y + 10, there are 4 terms.

2. 3x^2 + X + 10 + 5x
= 3x^2 + 6x + 10

So, in conclusion, the answer to this question is: D. 3x^2 + 6x + 10.
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Answer:

Correct answer is:

5y+6r=660\\y=2r+8

Step-by-step explanation:

Given that Number of bracelets with yellow beads is represented by y

Each bracelet with yellow beads is sold for $5.

Total money raised by bracelets with yellow beads = Number of bracelets sold \times Money raised by sale of one such bracelet = 5y

Also Given that Number of bracelets with Orange beads is represented by r

Each bracelet with orange beads is sold for $6.

Total money raised by bracelets with orange beads = Number of bracelets sold \times Money raised by sale of one such bracelet = 6r

Given that total money raised by sale of both type of bracelets is $660.

so, the first equation becomes:

5y+6r=660 ....... (1)

It is also given that "<em>The number of bracelets with yellow beads that Sierra sold is 8 more than twice the number of bracelets with orange beads</em>"

\Rightarrow r =2r+8 ...... (2)

So, by equation (1) and (2), the system of equations is:

5y+6r=660\\y=2r+8

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<u>Confidence Interval</u>

When the population standard deviation \sigma is known, the formula for a confidence interval for a population mean \bar x is:

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26.5265

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