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jenyasd209 [6]
3 years ago
10

Find the value of the variable

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
7 0

Answer:

15 degrees.

Step-by-step directions:

It is 15 degrees because the angle there is 90 degrees in total. And one of the angles are 75 degrees. So, 90-75 equals 15 degrees.

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Graph the line with the equation y= -2/5x -4<br><br><br>NEED ASAP PLS​
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The equation of line QR is y = negative 1 over 2x + 1. Write an equation of a line perpendicular to line QR in slope-intercept f
Vesnalui [34]
Any perpendicular line has a negative reciprocal slope. So your slope would be 2. The. You would have the equation : y=2x+b. You would then replace the coordinate (5,6) with x and y on your line to solve for b. Your equation would be : y=2x-4
5 0
3 years ago
Read 2 more answers
Please help. 10 points and brainliest.
Snezhnost [94]

Answer:

\frac{a^2}{b^2}

Step-by-step explanation:

Apply the exponent rule a^b*a^c=a^b+c to a

a^4*a^-^2=a^4^-^2=a^2

b^3a^2b^-^5

Apply the exponent rule to b

b^3*b^-^5=b^3^-^5=b^-^2

Apply the exponent rule a^-^b=\frac{1}{a^b}

b^-^2=\frac{1}{b^2}=\frac{1}{b^2}a^2=\frac{a^2}{b^2}

6 0
3 years ago
I think it’s b but I’m not sure
laila [671]
No, its D

Just look at the rounds mentioned and subtract the scores from higher round with lower round.

Look at A: round 2 score - round 1 score = -2?
-3 -1 = -4 change, not -2 change so it is wrong

Look at B: round 3 score - round 1 score =-1?
-2-1 =-3 change, not -1 change so it is wrong

Look at C: round 3 score - round 2 score =-1?
-2 -(-3) = 1 change, not -1 change so it is wrong

Look at D: round 3 score - round 1 score =-3?
-2-1 = -3 change, matches with -3 so it is correct.
3 0
3 years ago
The question in the picture please help.
Iteru [2.4K]

Answer:

a

Step-by-step explanation:

because i got it right

7 0
2 years ago
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