Mathematics, 07.10.2019 03:50 briannabo08

Pls me i have tried to answer this so many times and i’m never right

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Answer from: GhostElite6383

ANGLES ADB AND BDC ADD UP TO EACH OTHER. SOLVE FOR X.

134 = (5x + 4) + (7x - 2)

134 = 12x + 2

132 = 12x

11 = x

SUBSTITUTE INTO ANGLE'S EQUATION

7x - 2

= 7(11) - 2

= 77 - 2

= 75

Therefore, <BDC is 75 degrees.

Answer from: ramjand3062

The answer is 75°.

Ok, now I am going to walk you through step-by-step so hopefully this will make more sense :)

We know that ADC=134°, so if we were to add the two angles that make it up together, their sum should equal 134°.

So if we wanted to write that out it would look like this:
(5x+4)+(7x-2)=134°.

Now we can add like terms, so add the x's together and add the regular numbers together. This means we do 5x+7x=12x and 4-2=2. The simplified equation should now look like this:
12x+2=134°.

We can now subtract 2 from both sides, then to get x alone, we divide 132 by 12. To write it out it looks like this:
12x=132°, then x=11.

Now that we know x, we can plug it into the value of BDC, so:
7(11)-2. 7×11=77 and 77-2= 75°

Hope this helps!

Answer from: Quest

Sorry can't answer that question
Which value for r in the table would most likely indicate an association between the conditional var

Answer from: Quest

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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Pls me i have tried to answer this so many times and i’m never right
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