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4 years ago

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Jimmy earns $9.25 per hour working at a local grocery store. If Jimmy earned $74 last week, which equation would be used to dete

rmine h, the number of hours he worked last week?

1 answer:

Alekssandra [29.7K]4 years ago

8 0

9.25h=74 you multiply h by 9.25

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Assume the annual day care cost per child is normally distributed with a mean of $9000 and a standard deviation of $1000. What

Tpy6a [65]

Answer:

65.54% (nearest hundredth)

Step-by-step explanation:

Given:

$\sf \mu=9000$

$\sf \sigma=1000$

$\sf X \sim N(\mu, \sigma^2)\implies X \sim N(9000,1000^2)$

P(X > 8600) = 1 - P(X ≤ 8600)

= 1 - 0.3445782584

= 0.6554217416

= 65.54%

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2 years ago

In the given figure, angle APC =<br>angle BQD. Prove that: AB //CD.<br>

aniked [119]

1. <APC = <DQB [ Given]

2. Arc(AC = BD) [ Equal angles subtend equal arcs]

3. AB//CD [From 2]

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3 years ago

Identify the zeros of the function f(x) =2x^2 − 2x + 13 using the Quadratic Formula. SHOW YOUR WORK PLEASE!!

Blababa [14]

Answer:

the answer is 13

Step-by-step explanation:

this is the answer I got if its not it then give me some answer choices

5 0

4 years ago

5. George walks to a friend's house. He walks 750 meters North, then realizes

grin007 [14]

Answer:

76.9

Step-by-step explanation:

5= d/t = 1000m/135 =76.9

8 0

3 years ago

3. A medical devices company wants to know the number of MRI machines needed per day. A previous study found a standard deviatio

lozanna [386]

Answer:

173 MRI machines

Step-by-step explanation:

Margin of error E = 0.5

Confidence interval 90% = 1-0.9 = 0.1

Standard deviation = 4 hours

Number of MRI machines needed per day n, = [(z alpha/2 * SD)/E]²

Z alpha/2 = 1.645 at alpha = 0.1

Inputting these values into n we have that

[(1.645*4)/0.5]²

= 13.16²

= 173.18 is approximately equal to 173

The company has to study 173 machines.

6 0

4 years ago