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tekilochka [14]
4 years ago
12

Math test assesment chapter 5 answer #9

Mathematics
1 answer:
zaharov [31]4 years ago
5 0
What grade are u in so i can try to help u
You might be interested in
Do any just pls i need your help
kari74 [83]

Answer:

6 dollars for #1

3.18 dollars #2

12-13 dollars #3

HOPEFULLY THIS HELPS!

3 0
3 years ago
Read 2 more answers
Whats the domain and range of y=2x+1
Nataliya [291]
Domain: <span>(<span>−∞,∞</span>)
</span>Range: <span>(<span>−∞,∞</span>)</span>
4 0
3 years ago
Your math professor gives you a set of 10 problems and tells you that the final exam will consist of a random selection of 5 of
stellarik [79]

Answer:

0.083

Step-by-step explanation:

To solve the above question, we use the combination method.

C(n, r) = nCr = n!/r!(n - r)!

Probability of answering (all 5 correctly)

= Probability of answering ( 5 out of 7 correctly)/ Probability of answering (5 out of 10 problems)

Probability of answering ( 5 out of 7 correctly) = 7C5

nCr = n!/r!(n - r)!

= 7!/5! (7 - 5)!

= 7 × 6 × 5 × 4 × 3 × 2 × 1/( 5 × 4 × 3 × 2 × 1) × (2 × 1)

= 21 ways

Probability of answering (5 out of 10 problems) = 10C5

nCr = n!/r!(n - r)!

= 10!/5! (10 - 5)!

= 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1/( 5 × 4 × 3 × 2 × 1) × (5 × 4 × 3 × 2 × 1)

= 252 ways

Probability of answering (all 5 correctly)

= 21/252

= 0.0833333333

Approximately = 0.083

5 0
3 years ago
Collect like terms
Dmitriy789 [7]

Answer: b • (3b2 + 2b + 3)

Step-by-step explanation: Plugged it in to a calculator

3 0
3 years ago
What is the solution to this system of linear equations 3x 2y 14 5x y 32
Leya [2.2K]

After simplification, the solution of this system of linear equation is (3.85, 12.75).

In the given question we have to find the solution to this system of linear equations 3x-2y=14 or 5x+y=32.

The given system of linear equations is:

3x-2y=14.......................(1)

5x+y=32.......................(2)

Multiply equation 2 by 2, we get

10x+2y=64.......................(3)

Add equation 3 by 1, we get

10x+2y+3x-2y=64-14

13x=50

Divide by 13 on both side, we get

x=3.85

Now put the value of x in equation 2

5(3.85)+y=32

19.25+y=32

Subtract 19.25 on both side, we get

y=12.75

So, the solution of this system of equation is (3.85, 12.75).

To learn more about system of linear equation link is here

brainly.com/question/27664510

#SPJ4

6 0
2 years ago
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