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rewona [7]
1 year ago
15

Please answer! thanks

Mathematics
2 answers:
Artist 52 [7]1 year ago
8 0

Answer:

Gabi did not make a mistake.

Step-by-step explanation:

To find j, Gabi needs to multiply both sides of the equation by 10. 80*10 = 800, so therefore j = 800. Both steps are correct.

Vikki [24]1 year ago
3 0

Answer:

The third option. he didnt make a mistake

Step-by-step explanation:

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Ainat [17]

Answer:

Solution: x = -2; y = 3 or (-2, 3)

Step-by-step explanation:

<u>Equation 1:</u>  y = -5x - 7  

<u>Equation 2:</u> -4x - 3y = -1

Substitute the value of y in Equation 1 into the Equation 2:

-4x - 3(-5x - 7)  = -1

-4x +15x + 21 = -1

Combine like terms:

11x + 21 =  - 1

Subtract 21 from both sides:

11x + 21 - 21 =  - 1 - 21

11x = -22

Divide both sides by 11 to solve for x:

11x/11 = -22/11

x = -2

Now that we have the value for x, substitute x = 2 into Equation 2 to solve for y:

-4x - 3y = -1

-4(-2) - 3y = -1

8 - 3y = -1

Subtract 8 from both sides:

8 - 8 - 3y = -1 - 8

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-3y/-3 = -9/-3

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x = -2; y = 3 or (-2, 3)

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7 0
3 years ago
How do you get angle x using trigonometry in a right angled triangle?
Scorpion4ik [409]

Answer:

Example

Step 1 The two sides we know are Adjacent (6,750) and Hypotenuse (8,100).

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Step 4 Find the angle from your calculator using cos-1 of 0.8333:

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2 years ago
Whats the gcf of 32 and 52
Molodets [167]
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Factors of 52: 1, 2, 4, 13, 26

The common factors between them are 1, 2, 4, but the greatest common factor between them is 4.


7 0
3 years ago
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steposvetlana [31]

Answer:

(5,12)

Step-by-step explanation:

because 18-13=5 and 20-8=12

5 0
3 years ago
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Alexus [3.1K]
It will be 36m  so yeah thats the answer                                                
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