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Dafna1 [17]
2 years ago
7

What is the area of this rectangle?

Mathematics
1 answer:
Pani-rosa [81]2 years ago
4 0

Answer:

39

Step-by-step explanation:

You find the area by multiplying the length times the height which is what I did 13 x 3 = 39

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Solve using the quadratic formula. Approximate answers to the nearest tenth.
-BARSIC- [3]

Answer:

\displaystyle x=-1, \ 8

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>Algebra I</u>

  • Standard Form: ax² + bx + c = 0
  • Quadratic Formula: \displaystyle x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

x² - 7x - 8

↓

<em>a</em> = 1, <em>b </em>= -7, <em>c</em> = -8

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute in variables [Quadratic Formula]:                                                  \displaystyle x=\frac{7 \pm \sqrt{(-7)^2-4(1)(-8)}}{2(1)}
  2. [√Radical] Evaluate exponents:                                                                       \displaystyle x=\frac{7 \pm \sqrt{49-4(1)(-8)}}{2(1)}
  3. [√Radical] Multiply:                                                                                           \displaystyle x=\frac{7 \pm \sqrt{49 + 32}}{2(1)}
  4. [√Radical] Add:                                                                                                 \displaystyle x=\frac{7 \pm \sqrt{81}}{2(1)}
  5. [√Radical] Evaluate:                                                                                         \displaystyle x=\frac{7 \pm 9}{2(1)}
  6. Multiply:                                                                                                             \displaystyle x=\frac{7 \pm 9}{2}
  7. Add/Subtract:                                                                                                    \displaystyle x=\frac{-2}{2}, \ \frac{16}{2}
  8. Divide:                                                                                                               \displaystyle x=-1, \ 8
5 0
3 years ago
All you need is in the photo
Ivahew [28]

Answer:

Step-by-step explanation:

-4 and 3

7 0
3 years ago
Castor bought 3 spells for $9 how many spells can you buy for $12.00
Georgia [21]

Answer:

4

Step-by-step explanation:

divide 9 by 3 the answer is 3 then divide 12 by 3 then the answer is 4

8 0
3 years ago
Read 2 more answers
a parking garage charges $1.12 for the first hour and 0.50 for each additional hour. what is the maximum length of time Tom can
PtichkaEL [24]

Answer:

he answer would be 10

Step-by-step explanation:


7 0
4 years ago
PLZ HELPPPP
Naily [24]

Answer:

$6083.26

Step-by-step explanation:

100+4 = 104

104/100 = 1.04

5000 * 1.04^5 = 6083.264512

3 0
3 years ago
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