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2 years ago

What is the scale factor that take triangle XYZ to X'Y'Z'?

Mathematics

2 answers:

skelet666 [1.2K]2 years ago

6 0

The scale factor that takes triangle XYZ to X’Y’Z’ is 2.

Murljashka [212]2 years ago

3 0

Hey! The answer is 2 I didn’t respond early enough good lucks mate

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What is the LCD of 11/12 and 10/9

umka21 [38]

Break the two denominators down to their primes.

9: 3 * 3

12:2 * 2 * 3

LCD: 2*2*3*3

LCD: 4 * 9

LCD:36

4 0

2 years ago

The average credit card debt for American is between $11,000 and $17,000. How could this be written using a margin of error

Alexandra [31]

Answer:

[μ-error, μ + error]

[14000- 3000, 14000 + 3000]

Step-by-step explanation:

We write it how an interval, where the center of the interval is the mean, thus

[μ-error, μ + error]

First we calculate the mean

μ = (11000+17000)/2

μ = $14000

And the error is the absolute value of the difference between the mean an either extreme values

error = |14000 -17000| = |14000 - 11000| = 3000

Then

[14000- 3000, 14000 + 3000]

5 0

3 years ago

there are 21 female performers in a dance recital the ratio of men to women is 2:3 how many men are in the dance recital

Softa [21]

Answer:

42 men are in the dance recital.

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Given nonempty sets A and B, prove that every set in P(B − A) ⊆ P(B) − P(A).

Lelu [443]

Proof:

Let $X \in P(B-A)$ . As we chose $X$ in $P(B-A)$ we know that $X \subseteq B-A$ . Since $B-A \subseteq B$ by transitivity we get:

$X \subseteq B \quad \implies X \in P(B)$ .

If $X$ is the empty set, we already have that $X = \emptyset \in P(B) - P(A)$ . But if $X$ is not empty, that means that it can't be subset of $A$ , because $X$ is already subset of $B-A$ , and those sets do not share any element. In other words:

$X \subseteq A \cup (B-A) = \emptyset$

$\Rightarrow X = \emptyset$

As $X$ can't be subset of $A$ , then $X\notin P(A)$ . $X$ was an arbitrary element, and

$X \in P(B)$
$X\notin P(A)$

Thus, $X\in P(B)-P(A)$ , where we conclude that

$P(B-A) \subseteq P(B) - P(A)$

8 0

3 years ago

Find the missing side

vlada-n [284]

The answer you are looking for is 6.5.

To find this answer, you use the equation a² + b² = c², where c is the hypotenuse (the side with x in this case).

Next, fill in a and b with the two values given. Doing so will make the equation say 6² + 2.5² = c².

Now you solve for c.

6² = 36 and 2.5² = 6.25. (36 + 6.25 = c²)

36 + 6.25 = 42.25. (42.25 = c²)

√42.25 = 6.5. (6.5 = c)

Thus meaning 6.5 is the answer. I hope this helps!

3 0

3 years ago

Read 2 more answers