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3 years ago

Is (1,2) a solution of the system y>2x and x+y< 3

Mathematics

2 answers:

vovikov84 [41]3 years ago

3 0

Answer: No it is not a solution

Why not? Because it doesn't make the first inequality true. Replace x with 1 and y with 2

y > 2x

y > 2*1 ... replaced x with 1

2 > 2*1 .... replaced y with 2

2 > 2 .... which is a false inequality statement since 2 is not larger than itself

inessss [21]3 years ago

3 0

Answer: NO!

Step-by-step explanation:

x = 1, y = 2

y > 2x

2 > 2(1)

2 > 2

False

Sine it already failed, no need to check the other equation.

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A rectangular prism with a length of 7 centimeters, width of 5 centimeters, and height of 8 centimeters. A rectangular prism wit

Genrish500 [490]

Answer: The volume of the composite figure is $420\text{ cm}^3$ .

Step-by-step explanation:

We know that the volume of a rectanbgular prism is given by :-

Volume = length x width x height

Given, for prism 1 , we have

length of 7 centimeters, width of 5 centimeters, and height of 8 centimeters

Volume of prism 1= $(7)(5)(8)=280\text{ cm}^3$

Given, for prism 2 , we have

length of 10 centimeters, width of 7 centimeters, and height of 4 centimeters.

Volume of prism 2= $(10)(7)(4)=280\text{ cm}^3$

Now , the volume of the composite figure = Volume of prism 1+ Volume of prism 2

$=210\text{ cm}^3+210\text{ cm}^3=420\text{ cm}^3$

Hence, the volume of the composite figure is $420\text{ cm}^3$ .

5 0

3 years ago

Read 2 more answers

A school administrator asks each student if they participate in a sport and if they participate in a club. The results

Paraphin [41]

Answer:

Probabilities are used to represent the possibilities of events.

The probability that a student participates in a club given that he participates in sports is 0.6561

The required probability is represented as; P(Club | Sport)

And it is calculated using:

From the table, we have:

So, the equation becomes

Hence, (d) 06561 is correct.

Read more about probabilities at:

brainly.com/question/24297863

Step-by-step explanation:

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2 years ago

In a class of 25 students, 13 have a brother and 9 have a sister. There are 7 students who do not have any siblings. What is the

Ilya [14]

Answer:

Step-by-step explanation:

Discussion

9 with a sister

13 with a brother

7 with neither.

The total is 29 so you are counting some siblings twice. There are 29 - 25 students that have both, so 4 students have both.

P(brother and sister) = 4/25

P(brother and sister) = 0.16

Answer

P = 0.16

4 0

2 years ago

Simplify (25-4)3^ times 5

Harlamova29_29 [7]

Answer:

46305

Step-by-step explanation:

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2 years ago

The axis of symmetry for the graph of the function f(x)=3x2+bx+4 is x3/2. What is the value of b

Alexxandr [17]

Answer:

uhm it should be b=x5/2

Step-by-step explanation:

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3 years ago