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Soloha48 [4]
3 years ago
8

Cinderella currently does chores for 120 minutes per day. Her evil step-mother wants her to do chores for 200 minutes each day.

Each week, her step-mother is increasing her number of minutes by 10%. Her fairy godmother suggested Cinderella negotiate (work) with her step-mother for an increase of 5% per week.
Mathematics
2 answers:
jarptica [38.1K]3 years ago
7 0

Answer:

B.

Step-by-step explanation:

tigry1 [53]3 years ago
6 0

Answer:

325%

Step-by-step explanation:

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Evaluate 2(x - 4) + 3x - x2 for x = 2.<br> O A. -6<br> O B. -2<br> O C. 6<br> O D. 2
Olenka [21]

Answer:

B. -2

Step-by-step explanation:

2(x - 4) + 3x - x2

2(2 - 4) + 3(2) - (2)2

2(-2) + 6 - 4

-4 + 6 - 4

-8 + 6

-2

8 0
3 years ago
Among cases of heart pacemaker malfunctions, were found to be caused by firmware, which is software programmed into the device.
alex41 [277]

Complete question is;

Among 8834 cases of heart pacemaker malfunctions, 504 were found to be caused by firmware, which is software programmed into the device. If the firmware is tested in three different pacemakers randomly selected from this batch of 8834 and the entire batch is accepted if there are no failures, what is the probability that the firmware in the entire batch will be accepted? Is this procedure likely to result in the entire batch being accepted?

Answer:

P(All three are not caused by firmware) = 83.84%

Probability that the entire batch will be accepted = 0.8384

Step-by-step explanation:

We are told that out of the 8834 cases of heart pacemaker malfunctions, 504 were found to be caused by firmware.

Thus,

Cases not caused by firmware = 8834 - 504 = 8330

So, probability of the first case not being affected by firmware is;

P(first case not caused by firmware) = 8330/8834

Also,

Probability of second case not being affected by firmware is given as;

P(second case not caused by firmware|first case not affected by firmware) = 8329/8833

Similarly,

Probability of third case not being affected by firmware is given as;

P(third case not caused by firmware|first and second not caused by firmware) = 8328/8832

Now, looking at the 3 Probabilities gotten, it is obvious that the events are not independent because the probability of occurence of one event depends on the probability of occurence of the other event.

Thus, we will make use of the general multiplication rule which is;

P(A & B) = P(B) × P(A|B)

Thus;

P(All three not caused by firmware) = P(first case not caused by firmware) × P(second case not caused by firmware|first case not affected by firmware) × P(third case not caused by firmware|first and second not caused by firmware)

Plugging in the relevant values, we have;

P(All three not caused by firmware) = (8330/8834) × (8329/8833) × (8328/8832)

P(All three are not caused by firmware) = 0.83840506679 ≈ 83.84%

6 0
3 years ago
a jar containing 100 pennies is dumped onto a table, and all those coming up heads are removed. The remaining pennies are placed
lakkis [162]

Sorry, but there is no table to the right. Please put the table.

8 0
3 years ago
2. STOP RIGHT THERE. PLEASE HELP ME WITH THIS QUESTION
Nitella [24]

Answer: 4 * 8 = -32y

4 * 5 = -20

Step-by-step explanation:

8 0
2 years ago
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kupik [55]
64 dollars is the answer
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