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3 years ago

Please help please please

Mathematics

1 answer:

Ksju [112]3 years ago

8 0

∩ stands for the intersection of the two arrays think a venn diagram in this it would be three

∪ stands for objects that belong to either set

It would be A ∪ B because that set shows objects from both sets

If i'm wrong sorry its been a while since I've practiced or learned it

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Resuelve estas ecuaciones 1. x I 6 = 14 X=

valentinak56 [21]

Answer:

3 sjshgegegegehsksksjsjsissjs

5 0

2 years ago

The dishes have been sorted into cups and plates. The number of plates is four less than two times the number of cups. The dishe

Nady [450]

Answer:

The number of cups = 8 ....

Step-by-step explanation:

Let x be the number of cups

Let y be the number of plates

According to the given statement:

y=2x-4 This is equation 1

Now,

60% = 0.60

y=0.60(x+y) This is equation 2

Now substitute equation 1 in equation 2.

y=0.60(x+y)

2x-4=0.60(x+2x-4)

2x-4=0.6x+1.2x-2.4

Solve the like terms:

2x-4=1.8x-2.4

2x-1.8x=4-2.4

0.2x=1.6

x=1.6/0.2

x= 8 cups

Therefore the number of cups = 8 ....

7 0

3 years ago

Desire Help me with this quistion

aleksandrvk [35]

Answer:

The value of n is 11 feet.

Step-by-step explanation:

Given that the area of rectangle from is A = length×width so we have to substitute the variables into the formula in order to find n :

$area = length \times width$

Let area = 33,

Let length = n,

Let width = 3,

$33 = n \times 3$

$3n = 33$

$n = 33 \div 3$

$n = 11 \: feet$

8 0

3 years ago

The measure of the missing angle is ?

Cerrena [4.2K]

X = 97

Working on other question.

3 0

3 years ago

At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 18 m

Colt1911 [192]

Answer:

99.7% of customers have to wait between 8 minutes to 30 minutes for their food.

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 18 minutes

Standard Deviation, σ = 4 minutes

We are given that the distribution of amount of time is a bell shaped distribution that is a normal distribution.

Empirical Formula:

Almost all the data lies within three standard deviation from the mean for a normally distributed data.
About 68% of data lies within one standard deviation from the mean.
About 95% of data lies within two standard deviations of the mean.
About 99.7% of data lies within three standard deviation of the mean.

Thus, 99.7% of the customers have to wait:

$\mu -3\sigma = 18-3(4) = 6\\\mu +3\sigma = 18+3(4) = 30$

Thus, 99.7% of customers have to wait between 8 minutes to 30 minutes for their food.

3 0

3 years ago