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Over [174]
3 years ago
6

Choose the explanation that shows why ΔADE is similar to ΔABC.

Mathematics
2 answers:
aleksandrvk [35]3 years ago
6 0

Answer:

Step-by-step explanation:

Natasha2012 [34]3 years ago
5 0

Recall that a dilation with center (0, 0) and scale factor k maps (x,y) onto (kx, ky).

Now, triangle ADE is formed by

A=(0,0),\quad D=(0,2),\quad E=(4,0)

Whereas triangle ABC is formed by

A=(0,0),\quad B=(0,4),\quad C=(8,0)

In other words, the coordinates of B and C can be obtained by multiplying by 2 the coordinates of D and E.

This means that you get ABC from ADE by dilating with center (0,0) and scale factor 2.

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20 points <br> Are the first too correct?<br> And what would the last one be?
vazorg [7]

Answer:

a) cos

b) sin

c) tan maybe?

Step-by-step explanation:

8 0
2 years ago
How do you do proofs
AnnyKZ [126]

Answer:

you can watch YT videos or search online. search: How to solve proofs. Also search up proof theorems. This will help you even more towards solving more complex proof problems.

Step-by-step explanation:

8 0
3 years ago
The following is a student’s work when solving for y. There is a mistake in the work. What is the mistake? What is the correct a
laila [671]

Answer:

Part 1

The mistake is Step 2: P + 2·x = 2·y

Part 2

The correct answer is

Step 2 correction: P - 2·x = 2·y

(P - 2·x)/2 = y

Step-by-step explanation:

Part 1

The student's steps are;

Step 1; P = 2·x + 2·y

Step 2: P + 2·x = 2·y

Step 3: P + 2·x/2 = y

The mistake in the work is in Step 2

The mistake is moving 2·x to the left hand side of the equation by adding 2·x to <em>P </em>to get; P + 2·x = 2·y

Part 2

To correct method to move 2·x to the left hand side of the equation, leaving only 2·y on the right hand side is to subtract 2·x from both sides of the equation as follows;

Step 2 correction: P - 2·x = 2·x + 2·y - 2·x = 2·x - 2·x + 2·y = 2·y

∴ P - 2·x = 2·y

(P - 2·x)/2 = y

y = (P - 2·x)/2

7 0
2 years ago
The stemplot below displays the arm spans, in centimeters, for 20 students.
Sindrei [870]

Answer:

189 and 202

Step-by-step explanation:

An outlier is a value that will have an effect on the mean of a set of values. It has an obvious difference compared to other values. They can be easily determined in a set of given data by mere observation.

From the given data in the question, it would be observed that the chronological difference among set of the data is either 1, 2, 3 or 4. But the two numbers that could be referred to as outliers are 189 and 202. This is because the have a wider range than others.

8 0
2 years ago
Read 2 more answers
Please help ASAP :{ jhjkhybblvklmmm
babunello [35]

Answer:

<h2>C</h2>

Step-by-step explanation:

V=0.5*b*l*h

V=0.5*10*28*12

V=10*14*12

V=10*168

V=1680 m^3 or C

8 0
2 years ago
Read 2 more answers
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