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horrorfan [7]
1 year ago
8

-7,5 + 4,2 =? -0,9 * 2,7 =?

Mathematics
1 answer:
Gekata [30.6K]1 year ago
7 0

Answer:

-7.5+4.2=-3.3

-0.9*2.7=-2.43

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Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
cestrela7 [59]

Answer:

x = √47

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

<u>Trigonometry</u>

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

Step-by-step explanation:

<u>Step 1: Define</u>

We have a right triangle. We can use PT to solve for the missing side length.

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

Leg <em>a</em> = 5

Leg <em>b </em>= <em>x</em>

Hypotenuse <em>c</em> = √72

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Substitute [PT]:                    5² + x² = (√72)²
  2. Exponents:                           25 + x² = 72
  3. Isolate <em>x</em> term:                      x² = 47
  4. Isolate <em>x</em>:                               x = √47
8 0
2 years ago
if two positive integers P and Q can be expressed as p = a b square and q equals A cube B where A and B being prime numbers then
vodka [1.7K]
P = ab^2
q = a^3 b

p = a * b * b
q = a*a*a * b

Pairing the duplicates we have LCM = a*a*a*b*b  = a^3 b^2 answer
4 0
3 years ago
Show that vertical opposite angles are equal​
pashok25 [27]
Vertical Angles: Theorem and Proof
Theorem: In a pair of intersecting lines the vertically opposite angles are equal. It can be seen that ray \overline{OA} stands on the line \overleftrightarrow{CD} and according to Linear Pair Axiom, if a ray stands on a line, then the adjacent angles form a linear pair of angles.
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2 years ago
What is 2020 divided by 13?​
Lilit [14]

Answer:

155.384615385

Step-by-step explanation:

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3 years ago
A pair of jeans costs $40 and sales tax is 5%?<br>how much is the total bill?
spin [16.1K]
42$ because 10 % is 4 dollars so that 5% cut that 4 in half witch made it 2
5 0
3 years ago
Read 2 more answers
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