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
saul85 [17]
2 years ago
15

Is the dilatation an enlargement or a reduction

Mathematics
1 answer:
Brilliant_brown [7]2 years ago
5 0
Enlargement of 2. 

if it were a reduction it'd be getting smaller..
You might be interested in
What's the area of a circle with diameter 18 units? Question 8 options: A) 9π units2 B) 81π units2 C) π units2 D) 18π units2
Anna [14]

Answer:

B) 81π units²

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Geometry</u>

Radius of a Circle Formula: r = d/2

  • r is radius
  • d is diameter

Area of a Circle Formula: A = πr²

Step-by-step explanation:

<u>Step 1: Define</u>

Diameter <em>d</em> = 18 units

<u>Step 2: Manipulate Variables</u>

Radius <em>r</em> = 18 units/2 = 9 units

<u>Step 3: Find Area</u>

  1. Substitute in <em>r</em> [Area of a Circle Formula]:                                                       A = π(9 units)²
  2. [Area] Evaluate exponents:                                                                              A = π(81 units²)
  3. [Area] Multiply:                                                                                                  A = 81π units²
6 0
2 years ago
An electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricit
TiliK225 [7]

Answer:

atleast 385

Step-by-step explanation:

Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there.

Population std deviation = \sigma = 50

Sample size =n

STd error of sample mean = \frac{50}{\sqrt{n} }

Margin of error for 95% would be Critical value ( std error)

Here since population std dev is known we can use Z critical value= 1.96

1.96*\frac{50}{\sqrt{n} }19.6^2\\n>384.16

Sample size should be atleast 385

5 0
3 years ago
Find the hypotenuse of each Isosceles right triangle when the legs are of the given measure.
ludmilkaskok [199]

Answer:

12

Step-by-step explanation:

We can use the pythagorean theorem giving us:

a^2+b^2=c^2

(6sqr2)^2 + (6sqr2)^2 = c^2

72+72=c^2

144=c^2

12=c

6 0
2 years ago
Can somebody help me find the slope of this problem ??
andreev551 [17]

Answer:

The slope is 3/4

Please correct me if I am wrong please and thank you

Step-by-step explanation:

I use the slope formula \frac{y2-y1}{x2-x1}

Plug in (2,1) and (-2,-2)

1-(-2)/2-2

= 3/4

7 0
2 years ago
Read 2 more answers
Work out the value of 23 - 4b. When b = 3
Serggg [28]

Answer:

11

Step-by-step explanation:

Substitute 3 for b

23 - 4(3)

Multiply 4(3) = 12

23 - 12

Subtract

23 - 12 = 11

8 0
3 years ago
Read 2 more answers
Other questions:
  • 2.37 / x = 1<br> What is x?
    9·2 answers
  • If Hillary can read 560 words in 7 minutes how many words can Hilary read in 1 minute
    15·2 answers
  • The graph shows the relationship.....
    13·1 answer
  • Solve for y.18y -6 = -30
    6·1 answer
  • How do I solve this?
    9·1 answer
  • The ratio of girls to boys in a sports club is 3: 5
    5·2 answers
  • Does 3 (x-1) = 2x + 9 have one solution, no solution, or infinite solutions?
    14·2 answers
  • Solve the problem and find the answer
    5·1 answer
  • YOU MUST FOLLOW THE WORD PROBLEM 5 STEP PROCESS
    7·1 answer
  • You invested $7,000 into a money market account for 10 years at an annual interest rate of 3%. How much is the accrued interest?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!