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3 years ago

Suzie drove her gravity-powered car in a race. Her winning time on the 325-meter course was 53.2 seconds.

Mathematics

2 answers:

MrRissso [65]3 years ago

6 0

The answer is 6.11 m/s work included

Zigmanuir [339]3 years ago

6 0

Answer:

Step-by-step explanation:

Because you divide 325 divided by 53.2 and you get 6.109 and that rounds to 6.11

Hope this helped!!

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The cost in dollars of a Valentine's Dance is 45 + 3s where s is the number of students attending. What is the cost for 78 stude

S_A_V [24]

Answer:

Step-by-step explanation:

The cost for 78 students is $279.

If s is the number of students and you have 78 students attending, do 3*78 first. You should get 234, then once you get that total, don't forget to add 45 dollars onto it.

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3 years ago

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By United States cultural standards, it has been determined that 6 people live comfortably in 1500 square feet of living space.

Nimfa-mama [501]

Answer:

50,000

Step-by-step explanation:

Set up a proportion:

6/1500 = 200/x

Cross multiply and solve for x:

200x1500 = 6x

300000 = 6x

50000 = x

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3 years ago

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There are 8 oranges, 5 apples, and 6 bananas In the fruit basket.

scoundrel [369]

Step-by-step explanation:

all of them are correct

there are 5 apples and 6 bananas

there are 6 bananas and 5 apples

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so the ratio is 11:19

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3 years ago

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What is the GCF of the expression (24 + 18)?

andrew-mc [135]

6. 24- factors:1&24,2&12,3&8, 4&6. 18 factors: 1&18, 2&9, 3&6. The highest number that can multiply into them is 6 so it is the GCF

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3 years ago

A shipment of 50 precision parts including 4 that are defective is sent to an assembly plant. The quality control division selec

natali 33 [55]

Answer:

0.3968 = 39.68% probability this shipment passes inspection.

Step-by-step explanation:

The parts are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

50 parts means that $N = 50$

4 defective means that $k = 4$

10 are chosen, which means that $n = 10$

What is the probability this shipment passes inspection?

Probability that none is defective, so:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 0) = h(0,50,10,4) = \frac{C_{4,0}*C_{46,10}}{C_{50,10}} = 0.3968$

0.3968 = 39.68% probability this shipment passes inspection.

6 0

3 years ago