1 year ago

What is the product? (5r − 4)(r2 − 6r + 4)

Mathematics

1 answer:

maxonik [38]1 year ago

7 0

Answer:

Step-by-step explanation:

(5r-4)(2r-6r+4)

1(5r-4)+1(2r-6r+4)

5r-4+2r-6r+4

5r+2r-6=1r

1r-4+4

-4+4=0

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The distribution of the amount of money spent by first-time gamblers at a major casino in las vegas is approximately normal in s

Lostsunrise [7]

Solution: We are given:

$\mu=600, \sigma =120$

We need to find the z value corresponding to probability 0.84, in order to find the how much money almost 84% of gamblers spent at casino.

Using the standard normal table, we have:

$z(0.85) = 0.9945$

Now we will use the z score formula to find the required amount:

$z=\frac{x-\mu}{\sigma}$

$0.9945=\frac{x-600}{120}$

$0.9945 \times 120 = x - 600$

$119.34 = x - 600$

$x = 600 + 119.34$

$x = 719.34$

$x = 720$ approximately

Therefore, almost 84% of gamblers spent more than $720 amount of money at this casino.

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3 years ago

X=13+4x=22 please help

Andreyy89

X=13+4x. 13+4x=22
0=13+3x. 4x=9
3x=-13. x=9/4
x=13/3

4 0

2 years ago

Help me with this question please!

Amiraneli [1.4K]

Answer:

84 in²

Step-by-step explanation:

12+9=21

21x0.5=10.5

10.5x8=84

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2 years ago

What is the ratio 15 to 35 written as a fraction in lowest terms?

Elden [556K]

15/35
3/7.................

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2 years ago

Read 2 more answers

Your Bank account balance was $235 and 24. After two checks were cashed (each for the same amount) your balance is now -45.58. W

geniusboy [140]

235.24 + 45.58 = 280.82

280.82/2 = 140.41

each check was 140.41

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3 years ago