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iren2701 [21]
3 years ago
5

On a unit circle, what is cos Θ for coordinates

%20%5Cfrac%7B%5Csqrt%7B2%7D%20%7D%7B2%7D%29" id="TexFormula1" title="(\frac{\sqrt{2} }{2} , \frac{\sqrt{2} }{2})" alt="(\frac{\sqrt{2} }{2} , \frac{\sqrt{2} }{2})" align="absmiddle" class="latex-formula">?
A) 0

B) 1

C) \frac{\sqrt{2} }{2}

D) \sqrt{2}
Mathematics
1 answer:
blagie [28]3 years ago
8 0

Answer:  C

Step-by-step explanation:

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Find a solution to the linear equation - 2x – 2y = 8 by filling in the boxes with a valid value of x and y.
adoni [48]

Answer:

-2(-4)-2(0)=8

Step-by-step explanation:

Given

2x - 2y = 8

Required

Gaps: -2( )-2( )=8

<em>Fill in in the gaps</em>

The are numerous solutions to this.

One of them is:

Assume y = 0.

So, we have:

-2x - 2*0 = 8

-2x - 0 = 8

-2x = 8

Divide through by -2

\frac{-2x}{-2}= \frac{8}{-2}

x= -4

Fill in the gaps with these values of x and y respectively:

Hence; one solution is: -2(-4)-2(0)=8

4 0
3 years ago
Given: x - 5 &gt; -2. Choose the solution set. {x | x R, x &gt; -7} {x | x R, x &gt; -3} {x | x R, x &gt; 3} {x | x R, x &gt; 7}
sweet-ann [11.9K]

Answer:

{x | x ∈ R, x > 3}

Step-by-step explanation:

We are given the following inequality:

x - 5 > -2

In order to find the solution, we have to isolate the x on one side. This can be done by adding 5 to both sides of the inequality as shown below:

x - 5 + 5 > -2 + 5

x > 3

So the solution of the inequality is set of all numbers where x > 3. This is represented by 3rd option.

So, {x | x ∈ R, x > 3} is the answer.

4 0
3 years ago
What is the missing value in the proportion 4/5 = x/30?
ra1l [238]

Answer:

\displaystyle x = 24

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>

Step-by-step explanation:

<u>Step 1: Define</u>

<u />\displaystyle \frac{4}{5} = \frac{x}{30}<u />

<u />

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

  1. [Multiplication Property of Equality] Cross-multiply:                                      \displaystyle 5x = 120
  2. [Division Property of Equality] Divide 5 on both sides:                                \displaystyle x = 24
4 0
3 years ago
What shape has four equal sides and four right angles?<br> trapezoid<br> square<br> rectangle
aliina [53]
The answer is a square
5 0
3 years ago
Read 2 more answers
Complete the sentence.<br><br><br> 7 is 35% of ________
nataly862011 [7]
7 is 35% of x.

Thus, since 35% = 35/100,

35% of x is 7, so 35/100 * x = 7.

35x/100 = 7

35x=700

x = 20
7 is 35% of 20.


4 0
3 years ago
Read 2 more answers
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