Ask question

Ask question

All categories

2 years ago

10

What is the scale factor of the dilation of line segment BA?

2 answers:

Shtirlitz [24]2 years ago

5 0

we know that

If

the two triangles, ABC and A'B'C are similar

then

$CB/CB' = CA/CA' = BA/B'A'$

$CA/CA'= \frac{4}{20}$

$CA/CA'= \frac{1}{5}$

$BA/B'A'= \frac{1}{5}$

$B'A' = 5BA$

therefore

the answer is the /option D)

$5$

USPshnik [31]2 years ago

4 0

The two triangles, ABC, A'B'C are similar

so

CB/CB' = CA/CA' = BA/B'A'

BA/B'A' = 4/20

BA = 1/5 B'A'

BA = D.F B'A' (DF is dilation factor)

DF = 1/5

You might be interested in

What are the domain and range of the function f(x)=sqrtx+2-3

svet-max [94.6K]

The answer is choice 3.

6 0

3 years ago

In an arithmetic sequence, the nth term an is given by the formula an=a1+(n−1)d, where a1 is the first term and d is the commo

Dmitry_Shevchenko [17]

Answer:

$a_{10} = \frac{10}{65536}$

Step-by-step explanation:

The first step to solving this problem is verifying if this sequence is an arithmetic sequence or a geometric sequence.

This sequence is arithmetic if:

$a_{3} - a_{2} = a_{2} - a_{1}$

We have that:

$a_{3} = 40, a_{2} = 10, a_{3} = \frac{5}{2}$

$a_{3} - a_{2} = a_{2} - a_{1}$

$\frac{5}{2} - 10 = 10 - 40$

$\frac{-15}{2} \neq -30$

This is not an arithmetic sequence.

This sequence is geometric if:

$\frac{a_{3}}{a_{2}} = \frac{a_{2}}{a_{1}}$

$\frac{\frac{5}[2}}{10} = \frac{10}{40}$

$\frac{5}{20} = \frac{1}{4}$

$\frac{1}{4} = \frac{1}{4}$

This is a geometric sequence, in which:

The first term is 40, so $a_{1} = 40$

The common ratio is $\frac{1}{4}$ , so $r = \frac{1}{4}$ .

We have that:

$a_{n} = a_{1}*r^{n-1}$

The 10th term is $a_{10}$ . So:

$a_{10} = a_{1}*r^{9}$

$a_{10} = 40*(\frac{1}{4})^{9}$

$a_{10} = \frac{40}{262144}$

Simplifying by 4, we have:

$a_{10} = \frac{10}{65536}$

3 0

3 years ago

PLEASE HELP !!!!!!!!!!!!!!!!!!!!!!!I will give brainliest !!!!!!!!!!!!!!Sam knows he will be waiting at least 80 minuets in line

sergiy2304 [10]

Answer:

4

Step-by-step explanation:

20 x 4 = 80

so 1 per 20 minuets,and 4, 20 min. magazines would mean he needs 4 to make it to 80

6 0

2 years ago

Read 2 more answers

Find the missing coefficient.

lawyer [7]

<span>(2d - 5)(2d - 4) = 4d^2 - 2d x 4 - 5 x 2d + 20 = 4d^2 - 18d + 20

Answer is B
Hope it helps! </span>

3 0

2 years ago

Read 2 more answers

SOLVE FOR 50 POINTS CORRECTLY! OR ELSE REPORT!

Trava [24]

Y=16.65
6.80 +9.85=16.65

4 0

1 year ago