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KonstantinChe [14]
4 years ago
13

Does (3/4,radica 7/4) lie on the circumference of the unit circle

Mathematics
1 answer:
galina1969 [7]4 years ago
3 0
We have (3/4)^2 + (\sqrt{7}/4)^2 = 9/16 + 7/16 = (9+7)/16 = 16/16 = 1.
The answer is yes.
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PLEASE HELP ME WITH THIS 17 points!! PLEASEEEE IM BEGGING YOU!!!
slega [8]

Answer:

x = 2

Step-by-step explanation:

Step 1: Convert to math

5x + 1 = 3x + 5

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

  1. Subtract 4x on both sides: 2x + 1 = 5
  2. Subtract 1 on both sides: 2x = 4
  3. Divide both sides by 2: x = 2

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

5(2) + 1 = 3(2) + 5

10 + 1 = 6 + 5

11 = 11

7 0
3 years ago
Read 2 more answers
What decimal is equivalent to 4/3?
Angelina_Jolie [31]

Answer:

1.33333........    =     1(1/3)

Step-by-step explanation:

4/3 is an improper fraction

The mixded number is 1  1/3

 OR

1.33333  = 1 and 3/9    =  1 and 1/3

7 0
3 years ago
Read 2 more answers
A store has clearance items that have been marked down by 40%. They are having a sale, advertising an additional 45% off clearan
Olegator [25]

Answer:

P_2 = (1-0.45) *0.6 P_o =0.55*0.60 P_o=0.33 P_o

So the discount is 33% and we are paying 67% of the value. The reason is given by the relative change:

\% Change = \frac{|0.33P_o -P_o|}{P_o}*100 =67\%

Step-by-step explanation:

First we have a first discount of 40% so then using this condition and assuming that P_o represent the initial price, the price after the first discount P_1 is given by:

P_1 = (1-0.4) P_o =0.6P_o

That means 60% of the original value.

Now we have another discount of 45% for the 60% reamining after a 2 discount so let's P_2 represent the price after the second disccount we can can express this price in terms of P_1 or P_o liek this:

P_2 = (1-0.45) P_1=0.55 P_1

P_2 = (1-0.45) *0.6 P_o =0.55*0.60 P_o=0.33 P_o

So the discount is 33% and we are paying 67% of the value. The reason is given by the relative change:

\% Change = \frac{|0.33P_o -P_o|}{P_o}*100 =67\%

4 0
3 years ago
Triangle ABC is similar to triangle FGH. What is the value of x?
salantis [7]

Answer:

22.5

Step-by-step explanation:

find the scale factor

13.5/9 = 1.5

or

18/12 = 1.5

Then times 15 by this to get x

15 x 1.5 = 22.5

7 0
3 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. The vertical left edge
Mama L [17]

The area of the given trapezoid is 38 in².

<h3>What is a trapezoid?</h3>

A trapezoid is a quadrilateral (has four sides and four angles) with a single pair of parallel sides. The area (A) of a trapezoid is given by:

A = (1/2) * (a + b) * h

Where a, b are the parallel sides and h is the height of the trapezoid.

Given that a = 8, b = 11, h = 4, hence:

A = (1/2) * (8 + 11) * 4 = 38 in²

The area of the given trapezoid is 38 in².

Find out more on trapezoid at: brainly.com/question/1410008

7 0
3 years ago
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