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3 years ago

Alex plotted 3 points of a rectangle on a coordinate plane at (-2,3),(4,3) and (-2,-1). What is the 4th point of the rectangle

Mathematics

2 answers:

maw [93]3 years ago

7 0

(4,-1)
The x would be 4 because it was only used once. Same for the y.

Ksenya-84 [330]3 years ago

4 0

(4,-1)

These are the only numbers that weren’t repeated yet.

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Each column of the matrix represents a vertex of a triangle. If Rosa scales the triangle by finding 3T

LiRa [457]

Answer:

$\{(0,0) (0,9) (9,0)\}$

Step-by-step explanation:

Given

See attachment for matrix

From the attachment, we have the following vertices

$(x_1,y_1) = (0,0)$

$(x_2,y_2) = (0,3)$

$(x_3,y_3) = (3,0)$

When scaled by 3T, we have the following:

$(x_1,y_1) =3 * (0,0)$

$(x_1,y_1) =(0,0)$

$(x_2,y_2) = 3 * (0,3)$

$(x_2,y_2) = (0,9)$

$(x_3,y_3) = 3 *(3,0)$

$(x_3,y_3) = (9,0)$

Hence, the vertices are:

$\{(0,0) (0,9) (9,0)\}$

6 0

2 years ago

Alice, Bryan and Cindy share the cost of renting an apartment in the ratio

never [62]

Answer: $3510

Step-by-step explanation:

Fro th question, Alice, Bryan and Cindy share the cost of renting an apartment in the ratio 3:6:4 respectively and we.are informed that Alice pays $810 monthly.

Alice ratio = 3

Bryan's ratio = 6

Cindy's ratio = 4

Total ratio = 3+6+4 = 13

Since Alice has a ratio of 3, this means that Alice pays 3/13 of the total monthly rent. Let the total rent be x. Therefore,

3/13 of x = 810

3/13 × x = 810

3x/13 = 810

3x = 810 × 13

3x = 10530

x = 10530/3

x = 3510

Therefore, the monthly rent is $3510

4 0

3 years ago

A Geiger counter counts the number of alpha particles from radioactive material. Over a long period of tune, an average of 28 pa

patriot [66]

Answer:

Part I

p(x=1)=0.0000

p(x=2)=0.0000

Part II

p(x)=0.11

Step-by-step explanation:

For Poisson distribution:

$p(X=x)=e^-m\frac{m^x}{x!}$

Where m=mean, x=number of events

Given x=1, and mean,m=28

$p(X=1)=\frac{e^{-28} *28^1}{1!}\\p(X=1)=0.0000$

For x=2 and mean,m=28

$p(X=2)=\frac{e^{-28} *28^2}{2!}\\p(X=2)=0.0000$

For Uniform Distribution

Time interval 10 and 19 minutes is 9

Time interval between 15 and 16 minutes is 1

Therefore:-

$p(x)=\frac{1}{9}\\p(x)=0.1111\\p(x)=0.11 \ (2d.p)$

6 0

3 years ago

HELP ME PLZ ILL GIVE YOU EXTRA POINTS IF U GET IT RIGHT

tamaranim1 [39]

Step-by-step explanation:

I used my calculator, so they should be correct.

6 0

3 years ago

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Evaluate 7j+5-8k when j=0.5 and k=0.25

dlinn [17]

So first you would substitute j and k in the expression.

7(0.5)+5-8(0.25)

3.5+5-2

It would equal 6.5

Hope this helps!

6 0

3 years ago

Read 2 more answers