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Vlad [161]
3 years ago
8

Prove that if -5(x+4)=70, then x=-18

Mathematics
1 answer:
kvv77 [185]3 years ago
6 0
Input negative 18 into x and distribute. on both sides of the equal sign you should get 70=70
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The Empire State Building weights about 7.3 x 10 ^8
kvasek [131]

Answer:

730000000 lbs?

Step-by-step explanation:

4 0
3 years ago
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Joey went to a toy show at the local community center. He bought action figures and trading cards. He spent a total amount of $3
GuDViN [60]
$34.04 - $4.22 = $29.82
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3 years ago
Find the missing side length of the triangle 10m 7.5m
xxTIMURxx [149]

Answer:

c = 12.5

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  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Trigonometry</u>

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

  • a is a leg
  • b is another leg
  • c is the hypotenuse<u> </u>

Step-by-step explanation:

<u>Step 1: Identify</u>

Leg <em>a</em> = 7.5

Leg <em>b</em> = 10

Hypotenuse <em>c</em> = <em>c</em>

<em />

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

  1. Substitute in variables [Pythagorean Theorem]:                                              7.5² + 10² = c²
  2. Rewrite:                                                                                                             c² = 7.5² + 10²
  3. Evaluate exponents:                                                                                         c² = 56.25 + 100
  4. Add:                                                                                                                   c² = 156.25
  5. [Equality Property] Square root both sides:                                                    c = 12.5
5 0
3 years ago
A baseball manager has 12 players of the same ability how many nine player starting lineup starting create
Alja [10]
That is 12*11*10*9*8*7*6*5*4=79833600 ways
6 0
3 years ago
Help again PLSSSSSSSSSSSSSSSSSS
Lapatulllka [165]

Answer:

-3(x-y)

Step-by-step explanation:

The difference of x and y: x-y

Negative three times the difference of x and y: -3(x-y)

7 0
3 years ago
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