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Savatey [412]
3 years ago
7

(b) x - 4x2 + x + 6​

Mathematics
1 answer:
kiruha [24]3 years ago
5 0

Answer:

bx-4x^2+x+6

Step-by-step explanation:

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Find the standard deviation for the following data (20, 30, 38, 40)
Pepsi [2]
C) 7. 133 I believe.....
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3 years ago
The number of ways 8 cars can be lined up at a toll booth would be computed from
stepladder [879]

Answer: c. 8!

Step-by-step explanation:

We know , that if we line up n things , then the total number of ways to arrange n things in a line is given by :-

n! ( in words :- n factorial)

Therefore , the number of ways 8 cars can be lined up at a toll booth would be 8! .

Hence, the correct answer is c. 8! .

Alternatively , we also use multiplicative principle,

If we line up 8 cars , first we fix one car , then the number of choices for the next place will be 7 , after that we fix second car ,then the number of choices for the next place will be 6 , and so on..

So , the total number of ways to line up 8 cars = 8 x 7 x 6 x 5 x 4 x 3 x 2 x1 = 8!

Hence, the correct answer is c. 8! .

5 0
3 years ago
Mr. Smith paid $36.36 for a carpet. This amount includes a tax of 10%. What was the cost of the carpet before tax?
ser-zykov [4K]

Answer:

32.72

Step-by-step explanation:

36.36/100

0.3636

0.3636 times 90 (I use 90 because 100-10=90) 10% tax, so 90% original cost.

32.72

8 0
3 years ago
If p + q = 36, and p -q = 20, then q = ?
Andrew [12]

Answer:

q = 8

Step-by-step explanation:

Given the 2 equations

p + q = 36 → (1)

p - q = 20 → (2)

Add the 2 equations term by term

2p = 56 ( divide both sides by 2 )

p = 28

Substitute p = 28 into (1)

28 + q = 36 ( subtract 28 from both sides )

q = 8

5 0
3 years ago
Estimate the product 48 x 29 by rounding each factor to the nearest ten.<br> on
Leno4ka [110]

Answer:

1500

Step-by-step explanation:

48-50

29-30

50 times 30 = 1500

4 0
3 years ago
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