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stiv31 [10]
3 years ago
9

Horatio drew a circle with a radius of 6x cm. Kelli drew a circle with a radius of 18y cm. What is the scale factor between thes

e two circles? (this is a quiz question, you will recieve a medal for best answer)
A. x/3y
B. 2x/3y
C. 1/3
D. 2/3
Mathematics
2 answers:
jasenka [17]3 years ago
5 0
I believe the answer Is A.x/3y.
crimeas [40]3 years ago
5 0
The scale factor of these two circles is the ratio of their radii. This is shown below,
                               sf = r1 / r2   =   6x/18y
Simplifying the fraction by dividing both the numerator and the denominator by 6 gives an answer of x/3y. Thus, the answer is letter A. 
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White a multiplication equation and a division equation that compare the number of points derek acored durin game 1(x) to the nu
Juli2301 [7.4K]

The correct question is:

The graph attached shows the number of points Derek scored

during his first five basketball games.

Write a multiplication equation and a division equation that compare the number of points Derek scored during Game 1 (x) to the number of points Derek scored during Game 4 (y).

Answer:

Multiplication equation is y = 3x

Division equation is x = y/3

Step-by-step explanation:

During Game 1, Derek had 6 points

Let x be this point, that is

x = 6

During Game 4, he had 18 points

Let y be this point, that is

y = 18

Notice that he has three times as many point in Game 4 as he had in Game 1. (Because 18 is 6 × 3)

This can be written mathematically as

18 = 6 × 3

y = x × 3 (where y is 18, and x is 6)

y = 3x (this is multiplication equation)

If you divide both sides by 3, we have

x = y/3 (this is the division equation)

4 0
3 years ago
WILL GIBE BRAINLIEST ASAP
Romashka [77]

Answer:

A and D have whole grid squares that are the same size and aren't over lapping

C has overlapping grid squares making it hard to count

B can't be used to find area because some of the grid squares are different sizes

You still could use B because four of the smaller squares seems to be equivalent to one of the larger squares

Step-by-step explanation:

8 0
3 years ago
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tigry1 [53]

Answer:

32pi

Step-by-step explanation:

6 0
3 years ago
The function y = f (x) is graphed below. What is the average rate of change of the function f(x) on the interval - 1 ≤ x ≤ 3?
jonny [76]

Answer:

\displaystyle -2

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>Algebra I</u>

  • Average Rate of Change: \displaystyle \frac{f(b) - f(a)}{b - a}

Step-by-step explanation:

<u>Step 1: Define</u>

Interval -1 ≤ x ≤ 3

a = -1, b = 3

f(a) = f(-1) = 4

f(b) = f(3) = -4

<u>Step 2: Find Average</u>

  1. Substitute in variables [ARC]:                     \displaystyle \frac{f(3) - f(-1)}{3 + 1}
  2. Substitute:                                                   \displaystyle \frac{-4 - 4}{3 + 1}
  3. [Fraction] Subtract/Add:                             \displaystyle \frac{-8}{4}
  4. [Fraction] Divide:                                        \displaystyle -2
4 0
3 years ago
Explain how to solve the equation by reasoning about numbers, operations, and expressions. Do NOT use standard algebraic equatio
Brilliant_brown [7]

Answer:

x=924

Step-by-step explanation:

348 + 926 = x + 350

we have two 2-terms additions in both sides of the equation.

348 and 350 are two <em>similar</em> numbers then x and 926 should be really <em>close</em> numbers.

(due to commutative property of additions 348 + 926 = 350 + x)

<em>since 348 has two units less than 350, then 926 must have two units more than x, and <u>x=924</u></em>

(indirect proportionality)

6 0
3 years ago
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