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bija089 [108]
3 years ago
9

Rate of Change-Graph

Mathematics
1 answer:
katrin [286]3 years ago
3 0

Answer:

proportional

down by 50

Step-by-step explanation:

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Is rectangle EFGH the result of a dilation of rectangle ABCD with a center of dilation at the origin
trapecia [35]

Yes, because both figures are rectangles and all rectangles are similar. Option B is correct option.

According to the statement

We have given that the two rectangles EFGH and ABCD and we have show that the these rectangles Are dilation at origin or not.

So, According to the given diagram

Yes, the rectangle EFGH is a result of dilation of rectangle ABCD with a center of dilation of rectangle at the origin.

Also The scale factor of the dilation is greater than one as the image is bigger than the pre-image i.e. there is a stretch.

The scale factor could be calculated by the ratio of the sides of the image to the pre-image rectangle.

According to the diagram In Rectangle ABCD:

Its vertices have coordinates A(-3,3), B(3,3), C(3,0) and D(-3,0).

Now consider rectangle EFGH:  

Its vertices have coordinates E(-4,4), F(4,4), G(4,0) and H(-4,0).

Hence the scale factor is becomes from these values is:

EF/AB = EH/AD = FG/BC = HG/DC = 4/3.

Hence the scale factor becomes 4/3.

Also

∠A=∠B=∠C=∠D=∠E=∠F=∠G=∠H=90°

( When a shape is dilated the two shapes are similar.And similar shapes have equal interior angles , corresponding sides are proportional ).

So, Yes, because both figures are rectangles and all rectangles are similar. Option B is correct option.

Learn more about center of dilation of rectangle here brainly.com/question/17986580

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4 0
2 years ago
The mean vitamin C level for 20 dogs was 7.6 milligrams per liter, with a standard deviation of 2.1 milligrams per liter.
SpyIntel [72]

Answer:  The mean increases.

Step-by-step explanation:

The value of 0.9 mg/L is very low compared to a means of 7.6 mg/L with a standard deviation of 2.1 mg/L.  It seems as though it is an outlier that is suffiently different from the others, and probably should be dropped from the data set.  That would do 2 things:  1) the stabdard deviation will likely decrease, indicating a more confident data set, and 2) the mean vitamin C level will increase.

5 0
3 years ago
Polynomial of degree 3 with three distinct real zeros and a positive leading coefficient
horsena [70]
Conjugate. i hoped that helped
7 0
3 years ago
What is the slope of the line that passes through the points (5, 4) and (13.25, -18) ?
Murrr4er [49]

Answer:

<u>Answer</u><u>:</u><u> </u><u>D</u><u>.</u><u> </u><u>8</u><u>/</u><u>3</u>

Step-by-step explanation:

Formular for slope:

[ consider points (x1, y1) and (x2, y2) ]

slope =  \frac{y_{2}  - y _{1} }{x _{2} - x _{1} }  \\

x1 » 5, y1 » 4

x2 » 13.25, y2 » -18

sloe =  \frac{ - 18 - 4}{13.25 - 5}  \\  \\  =  \frac{22}{8.25}  \\  \\ { \boxed{ \boxed{slope \:  =  \frac{8}{3} }}}

7 0
3 years ago
PLSSSS HELP ASSAP 50 POINTS FPR FIRST PERSON TO ANSWER ​
Dafna1 [17]

Answer:

a. 2/3 or 0.6666...

b. AB = 6cm and AD = 3cm

Step-by-step explanation:

28/42 = 2/3

14/21 = 2/3

42*1/7 = 6

21*1/7 = 3

6 0
4 years ago
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