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3 years ago

Can someone please help me? I'll gladly mark the best answer brainliest, and give 100 points!! Please and thank you :D

Mathematics

2 answers:

ruslelena [56]3 years ago

8 0

Answer:

First The scale factor of the dilation that transforms triangle PQR to triangle P'Q'R' is 1/3. This is because triangle P'Q'R is smaller than PQR by 1/3

Second The coordinates after P"Q"R" are P"(1, -2) Q"(0, -3) R"(-1, 0)

Third No the triangles are not congruent because they are not the same size. If there wouldn't have been a dilation or reflection then it would've been congruent. I got it right on Edge have a great day

Step-by-step explanation:

Alchen [17]3 years ago

3 0

Answer:

Part A: The scale factor of the dilation that transforms triangle PQR to triangle P'Q'R' is 1/3. This is because triangle P'Q'R is smaller than PQR by 1/3

Part B: The coordinates after P"Q"R" are P"(1, -2) Q"(0, -3) R"(-1, 0)

Part C: No the triangles are not congruent because they are not the same size. If there wouldn't have been a dilation or reflection then it would've been congruent.

Step-by-step explanation:

I did this Exam already and got a 100% good luck.

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Pls help this is from khan academy

Lena [83]

Answer:

$y=-3x+7$

Step-by-step explanation:

This is asking you to provide the equation is slope-intercept form:

$y=mx+b$

In this equation, m is the slope of the line and b is the y-intercept (where the x value is 0).

By looking at the graph, we can find the y-intercept:

$y-intercept=7\\\\m=7$

To find the slope of the line, you can count how many spaces it takes to go from one point to another. To do this, it's best to find an even point (1,4) and make your way to (0,7).

The slope is represented by $\frac{rise}{run}$ , where the rise is the change in the y-axis and the run is the change in the x-axis.

From (1,4) , move up (rise) as many spaces as it takes to get to the y-axis level of "7", which is 3 spaces. From here, move to the left (run) as many spaces as it takes to get to the x-axis level of "0", which is 1 space. Since you moved to the left, however, this means that the number will be a negative:

$\frac{rise}{run}=\frac{3}{-1}=-\frac{3}{1}=-3$

The slope is -3.

Insert the information into the equation:

$y=-3x+7$

:Done

6 0

3 years ago

Read 2 more answers

Can anyone help me with this , it’s a test and it’s due in 20 minutes!!! help someone

Andrews [41]

Answer:

It would be the second one.

Step-by-step explanation:

Sorry if I'm wrong.

when your done with that test can you tell me if I got it right or wrong please.

have a lovely day. <:

6 0

3 years ago

A two-factor research study has 2 levels of factor A and 3 levels of factor B with a separate sample of n = 5 subjects in each t

amid [387]

Answer:

option (b) df = 1, 24

Step-by-step explanation:

Data provided in the question:

levels of factor A, a = 2

levels of factor B, b = 3

Subjects in each Sample, s = 5

n = 5 × 3 × 2 = 30

Now

df for Factor A = a - 1

= 2 - 1

= 1

df for Factor B = b - 1

= 3 - 1

= 2

df for Interaction AB = ( a - 1 ) × ( b - 1 )

= 1 × 2

= 2

df for Total = n - 1

= 30 - 1

= 29

df for error = 29 - 5

= 24

Hence,

df values for the F-ratio evaluating the main effect of factor A is 1, 24

The correct answer is option (b) df = 1, 24

6 0

4 years ago

2. A block of wood has a mass of 6.0 g and a volume of 12.0 cm<br> wood?

Alina [70]

Wood will be your best answer choice

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3 years ago

Three years ago a school spent four hundred thirty-eight thousand, seven hundred sixty-nine dollars and seventy-nine cents build

alukav5142 [94]

Answer: $438,769.79
Please mark me Brainliest

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3 years ago