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Lady bird [3.3K]
3 years ago
14

alyssa does jumping jacks in her spare time she does 300 jumping jacks on 2.5 minutes how many jumpin jacks can she do per minut

e?​
Mathematics
1 answer:
Alex Ar [27]3 years ago
8 0
The answer to this question is 120 hope this helps
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Simplify the fraction and state the excluded value(s).
stira [4]

Answer:

\displaystyle \frac{7x^2 + 4x - 20}{5x + 10} = \frac{7x - 10}{5}, x \neq -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>

  • Terms/Coefficients
  • Factoring

<u>Calculus</u>

Discontinuities

  • Removable (Holes)
  • Jump (Piece-wise functions)
  • Infinite (Asymptotes)

Step-by-step explanation:

<u>Step 1: Define</u>

<u />\displaystyle \frac{7x^2 + 4x - 20}{5x + 10}<u />

<u />

<u>Step 2: Simplify</u>

  1. [Frac - Numerator] Factor quadratic:                    \displaystyle \frac{(7x - 10)(x + 2)}{5x + 10}
  2. [Frac - Denominator] Factor GCF:                        \displaystyle \frac{(7x - 10)(x + 2)}{5(x + 2)}
  3. [Frac] Divide/Simplify:                                           \displaystyle \frac{(7x - 10)}{5}, x \neq -2

When we divide (x + 2), we would have a <em>removable</em> <em>discontinuity</em>. If we were to graph the original function, we would see at x = -2 there would be a hole in the graph.

8 0
3 years ago
Which expression is equivalent to (f + g)(4)?​
krok68 [10]

Answer:

4f+4g

Step-by-step explanation:

6 0
3 years ago
Someone know how to solve this one
slavikrds [6]

Answer:

diagonals bisect each other equally in rectangle

then use the concept of vertically opposite angles

7 0
3 years ago
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Use absolute value to express the distance between -12 and -15 on the number line
NARA [144]
C
I-12-(-15)l
l-12+15l
l3l = 3
7 0
3 years ago
A photographer that is 3 inches wide by 5 inches long is being enlarged so that it is 12 inches long. How wide will the enlarged
lianna [129]

12/5 = 2.4 times larger

3 x 2.4 = 7.2 inches wide

5 0
3 years ago
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