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2 years ago

PLEASE HELP ME FAST!!!

Mathematics

1 answer:

Alexxandr [17]2 years ago

8 0

The equation for slope intercept form is written as y = ax +b, where a is the slope and b is the y-intercept.

Using the given slope and y-intercept the equation is:

y = -4x - 9

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If x-13 = k and k = 3, what is the value of x?

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2 years ago

On a map, 90 miles is represented by 3 inches.

jarptica [38.1K]

If the ratio is 90:3 and there are 4 groups of 3 in 12, then the ratio would then be 450:12, leaving you with 450 as the answer. Hope I helped

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3 years ago

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A dentist polls his patients and finds that 83 percent brush their teeth at least twice a day, 47 percent floss daily, and 19 pe

puteri [66]

Answer:

The correct option is B. 23%

Step-by-step explanation:

Let the event that patient brushes his teeth at least twice a day is denoted by A

So, P(A) = 0.83

Let the event that patient flosses daily is denoted by B

So, P(B) = 0.47

Now, it is given that 19 percent patients brush at least twice a day and floss daily.

⇒ P(A and B) = 0.19

Now, we need to find conditional probability of occurring event B given A has occurred.

$\implies P(B|A) =\frac{P(A\: and\: B)}{P(A)}\\\\\implies P(B|A) = \frac{0.19}{0.83}\\\\\implies P(B|A) = 0.2289\approx 0.23$

Hence, Nearest required percentage = 23%

Therefore, The correct option is B. 23%

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2 years ago

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