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Nina [5.8K]
3 years ago
10

Simplify 10 (3n+2+10n)

Mathematics
2 answers:
stiks02 [169]3 years ago
7 0
10(3n) is 30n 
10(2) is 20
10(10n) is 100n
The answer is 130n + 20
Nastasia [14]3 years ago
4 0
10*3n=30n
10*2=20
10*10n=100n
100n+30n=130n
130n+20
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3 years ago
Which two values of x are roots of the polynomial below?
Julli [10]

Answer:

B. and C.

Step-by-step explanation:

1. Set the polynomial equal to zero:

x² + 5x + 7 = 0

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x=\frac{-5+-\sqrt{5^{2}-4(1)(7) } }{2(1)}

3. Solve the square root:

x=\frac{-5+-\sqrt{25-4(1)(7)} }{2(1)}

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4. Simplify the rest:

x=\frac{-5+-\sqrt{-3} }{2}

5. Separate the solutions:

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4 0
2 years ago
Please help me I put 100 points for anyone who helps me
LenaWriter [7]

Answer:

a)

<u>The discount id 40%, so the function is:</u>

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b)

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  • p = 300 ⇒ d = 120
  • p = 400 ⇒ d = 160
  • p = 500 ⇒ d = 200

<em>The graph is attached</em>

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7 0
3 years ago
Read 2 more answers
30tens-3tens3tenths
Pachacha [2.7K]
300 - 30 3/10 = 269 7/10


hope this helps
7 0
3 years ago
I need help for Part A and B
Tamiku [17]

Step-by-step explanation:

A

The probability of wining is 1/4 so it's 25%. so if you win you either win one of 2 object, so we have to divide the chance of wining by the number of object, so (25%)/2

A it's ,12.5% chance of wining the mug

B yes, it will change if she pics the mug first, it will be 25% because it's guaranteed that she will get the mug if she wins

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