1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gelneren [198K]
2 years ago
15

For the dilation with center​ (0,0) shown on the​ graph, your friend says the scale factor is

Mathematics
2 answers:
statuscvo [17]2 years ago
6 0

Answer:

Step-by-step explanation:

From the given figure:

Coordinates of Pre-image triangle ABC are:

A (0, 5), B(-5, 0) and C(5, -5)

and

Coordinate of image triangle A'B'C' are;

A'(0, 2), B'(-2, 0) and C'(2, -2)

The rule of dilation with scale factor k and centered at the origin is given by;

(x,y) ---> (kx,ky)

To find k;

A'(0, 2) = A'(0, 5k)

Comparing both sides we get;

5k = 2

k=2/5

Therefore, the correct scale factor is 2/5

He did mistakes in transformations i.e a huge mistake mathematically.

swat322 years ago
5 0

Answer:

5/7

Step-by-step explanation:

read the graph

You might be interested in
Which expression is equivalent to (f + g)(4)?
Akimi4 [234]

Answer:

(f + g)(4) is equivalent to f(4) + g(4)

So, Option A is correct

Step-by-step explanation:

We need to find which expression is equivalent to  (f + g)(4)

(f + g)(4) = f(4) + g(4)

So, (f + g)(4) is equivalent to f(4) + g(4)

So, Option A is correct

4 0
3 years ago
A coin contains 9 grams of nickel and 16 grams of copper, for a total weight of 25 grams. What percent of the metal in the coin
Tatiana [17]

Answer:

uh... 6%? sorry, i suck at math

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
C240
djyliett [7]

Answer:

  $3800

Step-by-step explanation:

When simple interest is added to the principal amount, the sum increases linearly with time. Essentially, you are asked for the y-intercept of a line that goes through the points (2, 6200) and (3, 7400). You can use the 2-point form of the equation of a line to find it:

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (7400 -6200)/(3 -2)(x -2) +6200 . . . . fill in given points

  y = 1200(x -2) +6200 . . . . . . . . . simplify some

  y = 1200x -2400 +6200 . . . . . . simplify more

  y = 1200x +3800 . . . . . . . . . . . . . completely simplify

When the number of years (x) is zero, the amount is 3800. The principal is $3800.

_____

The account is earning $1200 per year on a principal of $3800. The interest rate is about 31.6%, an unusually high value.

_____

<em>Alternate solution</em>

You can recognize that the interest earned in one year is 7400 -6200 = 1200. Since this is simple interest, the amount of interest earned each year is the same, so in 3 years, the account has earned 3×$1200 = $3600 in interest. Then the original principal amount must be ...

  $7400 -3600 = $3800 . . . . . principal amount

5 0
4 years ago
Select the correct answer. What is the solution to |x − 4| ≥ 7? A. -3 ≤ x ≤ 11 B. -11 ≤ x ≤ 3 C. x ≥ 11 or x ≤ -3 D. x ≥ 3 or x
hichkok12 [17]

Answer:

C) x ≥ 11 or x ≤ -3

Explanation:

Given following: |x − 4| ≥ 7

Apply absolute rule: If |u| ≥ 0 then u ≤ -a, u ≥ a

Solving stepwise:

⇒ x - 4  ≤ -7, x - 4 ≥ 7

<u>change sides</u>

⇒ x ≤ -7 + 4, x ≥ 7 + 4

<u>add/subtract integers</u>

⇒ x ≤ -3, x ≥ 11

6 0
2 years ago
Read 2 more answers
Shade of the grid.<br> 4<br> Click and drag to shade.
Sliva [168]

Answer:

I would shade 50 squares

Step-by-step explanation:

"Of" is the same as multiplication so,2/4×100/1=?

For fraction multiplication, multiply the numerators and then multiply the denominators to get

2×100/4×1=200/4

Since 200 divided by 4 equals 50 then, 200/4=50

Therefore: 2/4 of 100/1=50

7 0
3 years ago
Other questions:
  • Graph the geometric sequence of 1/32,1/8,1/2,2,8
    7·2 answers
  • A triangle has two sides that measure 4ft. and 3ft. Which could be the measure of the 3rd side?
    6·1 answer
  • 20 less than12 times a number is 64, what is the number
    10·1 answer
  • Find the domain of the function. (enter your answer using interval notation.) f(x) = 3x3 − 1 x2 + 2x − 15
    6·1 answer
  • A homeowner estimates that it will take 11 days to roof his house. A professional roofer estimates that he could roof the house
    13·1 answer
  • Help! See the picture below
    12·2 answers
  • Factorise d^2+14d+40​
    15·2 answers
  • 10 to the 2 power in fraction form
    11·2 answers
  • A machine has three components A, B and C. The probability of A working is 7/10. If A is working, the probability of B working i
    7·1 answer
  • In the graphic below,
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!