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Ksenya-84 [330]
3 years ago
9

What is the scale factor of the dilation of triangle ABC to triangle DEF?

Mathematics
2 answers:
elixir [45]3 years ago
7 0

Answer:the correct answer is 2

Step-by-step explanation:

to find the scale factor of similar figures you can divide image over pre-image

so you can divide DF over AC

sleet_krkn [62]3 years ago
4 0

Answer:

0.5

Step-by-step explanation:

Trust me i just did it

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Solve the equation below and find the variation constant, k .Find y when x = 7 and z=5, if y varies jointly as x and 2, and y= 1
Vlada [557]
<h3>Answers:</h3>

Variation Constant: k = 7/6

y = 245/6 when x = 7 and z = 5

====================================

Explanation:

"y varies jointly as x and z" means that y = kxz

We have (x,y,z) = (4,14,3) as one triple, so,

y = kxz

14 = k*4*3

14 = 12k

12k = 14

k = 14/12

k = 7/6 is the variation constant

The equation goes from y = kxz to y = (7/6)xz

----------------

Plug in x = 7 and z = 5 to find y

y = (7/6)xz

y = (7/6)*7*5

y = (7/6)*(7/1)*(5/1)

y = (7*7*5)/(6*1*1)

y = 245/6

4 0
3 years ago
Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in a recent year. suppose a samp
Anastaziya [24]
Given:
μ = $3.26 million, averaged salary
σ = $1.2 million, standard deviation
n = 100, sample size.

Let x = random test value
We want to determine P(x>4).

Calculate z-score.
z = (x - μ)/ (σ/√n) = (4 - 3.26)/(1.2/10) = 6.1667

From standard tables,
P(z<6.1667) = 1
The area under the distribution curve = 1.
Therefore
P(z>6.1667) = 1 - P(z<=6.1667) = 1 - 1 = 0

Answer: The probability is 0.

8 0
3 years ago
A rectangle with a width of 2.5 cm and a length of 3 cm is dilated by a scale factor of 4. Which statements about the new
steposvetlana [31]

Answer:

Below.

Step-by-step explanation:

The dimensions will be 10 * 12.

(each new dimension will be 4 times the original)

The new perimeter will be 4 times the original.

The new area will be 16 times the original ( 4 * 4 = 16).

The new perimeter will be 44 cm.

6 0
3 years ago
Read 2 more answers
What’s the answer to 4x+3=15
Anastasy [175]

Answer: 4.500

Step-by-step explanation:

4x - 18  =   2 • (2x - 9)

2   =  0

 2x-9 = 0

 2x = 9

x = 9/2 = 4.500

3 0
3 years ago
I NEED HELP!!!!!!!!!!!!!!!!!!!!!!!
AnnZ [28]

Answer:

all is easy first do it in the bracketsand do it divied multiply add and substrate

8 0
3 years ago
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