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kirill115 [55]
3 years ago
5

A triangle with vertices at A(20, –30), B(10, –15), and C(5, –20) has been dilated with a center of dilation at the origin. The

image of B, has the coordinates (2, –3). What is the scale factor of the dilation?
1/10
1/5
5
10
Mathematics
2 answers:
WARRIOR [948]3 years ago
6 0

Answer:

The correct answer is 5.

Step-by-step explanation:

This is because if you divide 10 by 2 and -15 by 3

you get 5. Now to double check, you can do 10/5 and -15/5

This will give you 2, -3, which is the coordinates.


Hope this helps!

dusya [7]3 years ago
5 0

Answer:

5

Step-by-step explanation:


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nalin [4]

Answer:

-2c^2 + c

Step-by-step explanation:

5 0
3 years ago
Evaluate the expression 2b^3+5 (BTW I did the first part it's 3 but I need the second part)​
andrey2020 [161]

To find the exact answer based on the last step, "2(3)^3+5", you must use PEMDAS (attached image below)

 

          2(3)^3+5=2*27+5=54+5=59

Thus the answer is <u>59</u>.

Hope that helps!

         

4 0
2 years ago
If f(x)=2x and g(x)= 1/x, what is the domain of (f*g) (x)
postnew [5]

Answer:

The domain of (f*g) (x) is the set of all real numbers; ( -∞, ∞)

Step-by-step explanation:

(f*g) (x) simply means we obtain the product of f(x) and g(x). We are given that;

f(x)=2x

g(x)= 1/x

(f*g) (x) = f(x) * g(x)

(f*g) (x) = 2x * 1/x = 2

This is a horizontal line defined everywhere on the real line. The domain of  (f*g) (x) is thus ( -∞, ∞)

7 0
4 years ago
Read 2 more answers
Braden logged 3 2/3 hours last week in his reading journal and 2 3/6 hours last week how many fewer hours did Brayden log in his
lubasha [3.4K]

Answer:

1 1/6

Step-by-step explanation:

im guessing you need this fast so i wont explain it

5 0
3 years ago
A circle with circumference 18 had an arc with 120 central angle. what is the length of the arc
lawyer [7]

Answer:

A circle with circumference 18 had an arc with 120 central angle.

=> Radius of that circle: R = 18/(2 x pi) = 2.86

=> Length of that arc: L = R x 120 x pi/180 = 2.86 x (2/3) x pi = 5.99

Hope this helps!

:)

5 0
3 years ago
Read 2 more answers
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