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2 years ago

HELP ME FOR 30 P!!!!!!

Mathematics

2 answers:

lyudmila [28]2 years ago

6 0

Answer:D

Step-by-step explanation: x-coordinate is same ( from picture), but height is different(y)

Radda [10]2 years ago

4 0

Answer:

OPTION D.

Step-by-step explanation:

Given:-

An image of house in the graph.

To find which option is correct.

So here we can notice that the roof top and the right side of the door is on a same straight line.

And it lies in the first co-ordinate.

So in the first coordinate in a straight line the value of x is always the same and only the value of y increase or decrease.

So here the correct option is OPTION D.

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NO LINKS!!! QRSTU ~ FGCDE. Find FG, CD, and EF.

arsen [322]

Answer:

See below ~

Step-by-step explanation:

Given :

QRSTU ~ FGCDE

Finding the scale factor :

Take two corresponding sides in proportion
RS : GC
40 : 12
10 : 3

Applying the scale factor to find the missing sides :

- FG :

QR : FG = 10 : 3
30/FG = 10/3
FG = 30/10 x 3
FG = 3 x 3
FG = 9

- CD :

ST : CD = 10 : 3
40/CD = 10/3
CD = 40/10 x 3
CD = 4 x 3
CD = 12

- EF :

UQ : EF = 10 : 3
30/EF = 10/3
EF = 30/10 x 3
EF = 3 x 3
EF = 9

4 0

2 years ago

Read 2 more answers

You are situated 300 feet from the base of Tower Glitz Plaza watching an external elevator descend down the side of the building

nordsb [41]

Answer:

18.66 ft/s

Step-by-step explanation:

The distance between you and the elevator is given by:

$h=\sqrt{x^2+y^2}$

The rate of change for the distance between you and the elevator is given by:

$\frac{dh}{dt}=\frac{dh}{dy}*\frac{dy}{dt}$

$-16=\frac{dh}{dy}*\frac{dy}{dt}$

$\frac{dh}{dy}=\frac{d}{dy} (\sqrt{x^2+y^2})\\$

Applying the chain rule:

$u=x^2+y^2\\\frac{dh}{dy}=\frac{d\sqrt u}{du} *\frac{du}{dy}\\\frac{dh}{dy}=\frac{1}{2\sqrt u} *2y\\\frac{dh}{dy}=\frac{y}{\sqrt {(x^2+y^2)}}$

Therefore, at x=300 and y = 500, dy/dt is:

$-16=\frac{y}{\sqrt {(x^2+y^2)}}*\frac{dy}{dt}\\-16=\frac{500}{\sqrt {(300^2+500^2)}}*\frac{dy}{dt}\\\frac{dy}{dt}=-18.66\ ft/s$

The elevator is descending at 18.66 ft/s.

7 0

3 years ago

Help please !!!!!!!! !!!!!!!!!!!!

lina2011 [118]

The answer would be 4/9

3 0

3 years ago

The coordinates of the vertices of a right triangle are (0, 0), (5, 0) and (0, 3). Which of the following statements is true?

Sphinxa [80]

I think A I'm not sure.

7 0

3 years ago

Read 2 more answers

3(-4x + 5) = 12

8_murik_8 [283]

Answer:

x=1/4

Step-by-step explanation:

7 0

3 years ago