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Sergeeva-Olga [200]

2 years ago

7

Fast Freddie is a widget assembler. He is paid $3.27 for every widget he assembles. What is Freddie's total pay for a week in wh

ich he completes 209 widgets?

2 answers:

ddd [48]2 years ago

8 0

Use your calculator to solve 3.27*209

Ymorist [56]2 years ago

4 0

Answer:

683.43

Step-by-Step explanation:

Use you're calculator and multiply 3.27*209

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the number of subscriptions to an interior design magazine was 16,450 in 1996. Since then, the number of subscriptions has incre

babunello [35]

Answer:

49,744.8 so round up to 49,745

Step-by-step explanation:

4 0

2 years ago

A simple random sample (SRS) of 100 of a certain popular car in 1997 found that 20 had a certain minor defect in the brakes. An

densk [106]

Answer: The required interval is (0.679, 0.821).

Step-by-step explanation:

Since we have given that

$n_1=100\\\\p_1=20\\\\n_2=400\\\\p_2=50$

So, the proportions would be

$\hat{p_1}=\dfrac{p_1}{n_1}=\dfrac{20}{100}=0.2\\\\\hat{p_2}=\dfrac{p_2}{n_2}=\dfrac{50}{400}=0.125$

So, At 90% confidence interval, the z score value would be

z = 1.65

and the hypothesis are :

$H_0:\hat{p_1}-\hat{p_2}=0\\\\H_1:\hat{p_1}-\hat{p_2}\neq 0$

So, the 90% confidence interval would be

$(\hat{p_1}-\hat{p_2})\pm z\sqrt{\dfrac{\hat{p_1}(1-\hat{p_1}}{n_1}+\dfrac{\hat{p_2}(1-\hat{p_2})}{n_2}}\\\\=(0.2-0.125)\pm 1.65\sqrt{\dfrac{0.2\times 0.8}{100}+\dfrac{0.125\times 0.875}{400}}\\\\=0.075\pm 1.65\times 0.0433\\\\=(0.75-0.0714,0.75+0.0714)\\\\=(0.679,0.821)$

Hence, the required interval is (0.679, 0.821).

5 0

2 years ago

A bag contains marbles, two of which are blue. Hayley plays a game in which she randomly draws marbles out of the bag, one after

vivado [14]

Answer:

A)2/y

B)2/(y-1)

C)2/(y-2)

D)2/(y-3)

Step-by-step explanation:

Based on the information available :

Let the total number of marbles = y

Number of blue marbles = 2

Game ends when Hayley draws a blue marble.

NB: Marble is drawn without replacement

A.) P(game ends on first draw) = (number of blue marbles) / total number of marbles

P(game ends on first draw) = 2/y

B.) P(game ends on second draw) :

If game doesn't end on first draw, then no blue marble was drawn on the first pick

P(game ends on second draw) = 2/(y-1)

C.)P(game ends on third draw) = 2 / (y-2)

D.)P(game ends on fourth draw) = 2/(y-3)

There isn't enough information to solve the remaining problems

5 0

2 years ago

Is y=x to the 2nd power + 6 linear on nonlinear and why?

Anna35 [415]

It is nonlinear because X is being raised to the second power

6 0

2 years ago

The diameter of Circle Q terminates on the circumference of the circle at (0,3) and (0,-4). Write the equation of the circle in

Gnesinka [82]

First, determine the center of the circle by getting the midpoint of the points given for the circumference.
midpoint = ((0 + 0)/2, (3 + -4)/2)
midpoint (0, -0.5)
Then, we get the radius by determining the distance from either of the circumferential point to the center.
radius = √(0 - 0)² + (3 +4)² = 7
The equation for the circle would be,
x² + (y + 0.5)² = 7²

8 0

2 years ago