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PSYCHO15rus [73]
4 years ago
12

Solve the equation and check your solution -(3y+2) -(-2y-4)=0

Mathematics
1 answer:
Gre4nikov [31]4 years ago
7 0

Answer:

y=2

Step-by-step explanation:

-(3y+2) -(-2y-4)=0

Distribute the minus signs

-3y -2 +2y +4 = 0

Combine like terms

-y +2 = 0

Add y to each side

-y+y +2 = 0+y

2=y

Check

-(3*2+2) -( -2*2-4) =0

-(6+2) -(-4-4)=0

-8 - (-8) =0

-8+8 =0

0=0

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Help help her help help
Margarita [4]

Answer:

x = 12

Step-by-step explanation:

1. Subtract 9 from both sides:

x/6 = 2

2. Multiply both sides by 6:

x = 12

7 0
3 years ago
Read 2 more answers
Line A passes through the points (-5, 1) and (5, 11).
11111nata11111 [884]
Line A:m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{11 - 1}{5 - (-5)} = \frac{10}{5 + 5} = \frac{10}{10} = 1
y - y₁ = m(x - x₁)
 y - 1 = 1(x - (-5))
 y - 1 = 1(x + 5)
 y - 1 = 1(x) + 1(5)
 y - 1 = x + 5
   + 1       + 1
       y = x + 6

Line B:m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{20 - (-1)}{-3 - 4} = \frac{20 + 1}{-7} = \frac{21}{-7} = -3
   y - y₁ = m(x - x₁)
y - (-1) = -3(x - 4)
   y + 1 = -3(x) + 3(4)
   y + 1 = -3x + 12
       - 1          -    1
         y = -3x + 11

y = x + 6
y = -3x + 11

     x + 6 = -3x + 11
+ 3x        + 3x
   4x + 6 = 11
         - 6   - 6
         4x = 5
          4     4
           x = 1¹/₄
           y = x + 6
           y = 1¹/₄ + 6
           y = 7¹/₄
     (x, y) = (1¹/₄, 7¹/₄)

The answer is B.
4 0
4 years ago
HELP MEEEEEEEEEEEHHHHHHHH (*≧▽≦)ノシ))
Naya [18.7K]

Answer:

1. Point C ( 0; 5 )

2. Point K ( 2; -3 )

3. Point N ( -6; -5 )

Look, here ( A; B ) A is located in x coordinate and B is located in y coordinate

7 0
3 years ago
Read 2 more answers
5+ 1/7b = -2<br>whats be and explanation<br>(don't get it cause its a fraction)
oee [108]
5+(1/7)b=-2

First subtract 5 from both sides. Our goal is to isolate b.
5+(1/7)b-5= -2-5
(1/7)b= -7

Now multiply both sides by 7 because (1/7)*7= 7/7 or 1.
7* (1/7)b= -7*7
1b= -49

Final answer: b= -49
8 0
3 years ago
A boat is heading towards a lighthouse, whose beacon-light is 136 feet above the
alexandr1967 [171]

The distance between the points A to B is 899.9 feet. After rounding off the  nearest integer we get 900 feet as the final answer.

Given we know that CD is perpendicular to AD.

The distance between CD is 139 feet.

As from points A the boat's crew measure the angle of elevation to the beacon as 6°

therefore, m∠A = 6°

Another time the angle of elevation is measured from point B which is 19°.

therefore, m∠DBC = 19°

tan 19° = CD/BD

BD = CD/tan19°

BD = 136/tan 19°

now for tan 6° = CD/AD (tangent is opposite over adjacent)

AD = CD/tan 6°

AD = 136/tan 6°

AB = AD ₋ BD

AB = 136/tan 6° ₋ 136/tan 19°

AB = 1295.2 ₋ 395.3

AB = 900 feet

hence the distance from point A to B is 900 feet.

Learn more about Heights and distances here:

brainly.com/question/2004882

#SPJ9

5 0
2 years ago
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