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riadik2000 [5.3K]
3 years ago
10

Can you help I’ll mark brainliest

Mathematics
1 answer:
Marta_Voda [28]3 years ago
6 0

Answer:

7\sqrt{3}

Step-by-step explanation:

Since this is a 30-60-90 triangle, we know that the sides have the following characteristic:

The side opposite to 30 degree angle: n

The side opposite to 60 degree angle: n\sqrt{3}

The side opposite to 90 degree angle: 2n

Since we know that 7 is opposite to 30-degree, and x is opposite to 60 degree, than we know that x = 7\sqrt{3}

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Karo-lina-s [1.5K]

3x+15=3(x+5)

3x+15=3x+15

15=x

~~~~~~~~~~~~

-3(2x-3)=-6x+9

-6x-3(-3)=6x+9

-12x+9=9

-12x+0

x=0

5 0
3 years ago
What is the answer plssssss
Vera_Pavlovna [14]

Answer:42

Step-by-step explanation:

11+8=19+11=30+12=42

7 0
3 years ago
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zlopas [31]
It’s open circle and a line pointed left so less than of equal to 75?
5 0
3 years ago
Dustin bought 3 shirts and a belt. Each shirt cost the same amount of money, and the belt cost $22.50. If the total amount Dusti
Dvinal [7]
3x+22.5 = 69.75
    -22.5    -22.5

3x = 47.25
 /3       /3

x = 15.75

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8 0
3 years ago
Part 1: Write mathematical equations of sinusoids.
Ilya [14]

Answer:

Part 1: Write mathematical equations of sinusoids.

1. The following sinusoid is plotted below. Complete the following steps to model the curve using the cosine function.

a) What is the phase shift, c, of this curve? (2 points)

b) What is the vertical shift, d, of this curve? (2 points)

c) What is the amplitude, a, of this curve? (2 points)

d) What is the period and the frequency factor, b, of this curve? (2 points

e) Write an equation using the cosine function that models this data set. (5 points)

2. The following points are a minimum and a maximum of a sinusoid. Complete the following steps to

model the curve using the sine function

Step-by-step explanation:

<em> </em><em>p</em><em>l</em><em>z</em><em> </em><em>f</em><em>o</em><em>l</em><em>o</em><em>w</em><em> </em><em>m</em><em>e</em>

5 0
3 years ago
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