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Lina20 [59]
4 years ago
5

8x - 2 = 3x + 11 how many solutions does it have?

Mathematics
2 answers:
sweet-ann [11.9K]4 years ago
7 0
The answer is one solution
Natasha2012 [34]4 years ago
3 0

Answer:

x equal 13/5

Step-by-step explanation:

8x-2-3x equal 3x + 11 - 3x

5x-2 equal 11

5x-2+2 equal 11 + 2

5x equal 13

5x/5 equal 13/5

x equal 13/5

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What is the slope ? M=
frez [133]

Answer:

-3/2

Step-by-step explanation:

The slope is found by

m = ( y2-y1)/(x2-x1)

Using the points (-4,11) and ( 0,5)

m = ( 11-5)/( -4-0)

  = 6/-4

  = -3/2

4 0
3 years ago
1-cos(6x)=___?<br> A. 3sin(2x)<br> B. 2sin^2(3x)<br> C. 3cos(2x)<br> D. 2cos^2(3x)
zhenek [66]

The solution to 1 - cos(6x) is 2sin²(x).

Hence, option B) 2sin²(x) is the correct answer.

<h3>What is solution to 1 - cos(6x)?</h3>

Given that; 1 - cos(6x) = ?

First, we rewrite using trig identity

1 - cos(2 × 3x)

Using the double angle identity, { <em>cos2(x) = 1 - 2sin²(x)</em> }

1 - ( 1 - 2sin²(x) )

Eliminate the parentheses

1 - 1 + 2sin²(x)

2sin²(x)

The solution to 1 - cos(6x) is 2sin²(x).

Hence, option B) 2sin²(x) is the correct answer.

Learn more about trig identity here: brainly.com/question/10376944

#SPJ1

4 0
2 years ago
Find the value of x. Simplify in simplest radical form.
posledela

Answer:

x is 13.03

Step-by-step explanation:

Start by determining the length of the horizontal side of one of the triangles shown.  The Pythagorean Theorem applies here:

(horizontal side)² + 17² = 19², so that:

(horizontal side)² + 17² = 19² - 17², or 72

Then the length of the horizontal side is +√72, or √36√2, or 6√2.

From the diagram it is obvious that the width of the rectangle, x, can be found by subtracting twice the length of the horizontal side of one of the triangles from 31 (base of the entire figure):

x = 31 - 2(6√2) = 13.03

x is 13.03

3 0
3 years ago
What percent of the bar below is shaded?
Ipatiy [6.2K]

Answer:

50%(???)

Step-by-step explanation:

Honestly I dunno but I would go with 50% that's half bro

7 0
3 years ago
2x – 4y = 24<br> x + 3y = 7<br> Solve by elimination
Allisa [31]
2x-4y=24
X+3y=7 (-2)


2x-4y=24
-2x-6y=-14
——————-
0 -10y=10
Y=-1

Reemplazar y en la ecuación
2x-4(-1)=24
2x+4=24
2X=20
X=10

Y=-1, X= 10
Hope this helps
5 0
3 years ago
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