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ZanzabumX [31]
2 years ago
9

Evaluate the expression: (-6)²-(-15)

Mathematics
1 answer:
Rasek [7]2 years ago
3 0

Answer:

51

Step-by-step explanation:

Simplify
(-6)²-(-15)
36 -(-15)
36 + 15
51

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Write the equation of a line perpendicular to 5x−9y=−8 that passes through the point ​(−5​,8​).
Fantom [35]

Answer:  y = -(9/5)x - 1

Step-by-step explanation:

Rewrite the equation in standard form:  y = (5/9)x+(8/9).  [y=mx+b]

A line perpendicular to this would have a slope that is the negative inverse of the original slope (5/9), which would make it -(9/5).  The y-intercept would also change, but we don't know the value, yet.  For now, we'll use "b" for the y-intercept.  This results in a perpendicular line:

y = -(9/5)x + b

We can calculate b, the y-intercept, by using the point (-5,8) and solving for b.

8 = -(9/5)*(-5) + b

8 = (9) + b

b = -1

The line perpendicular to 5x−9y=−8 that passes through the point ​(−5​,8​) is

y = -(9/5)x - 1

7 0
3 years ago
find the derivative with respect to x of f(x)=4x , and use it to find the equation of the tangent line to y=4x at x= 5
seropon [69]

Answer:

F(x)=4X X=5

F(5)=4X

4(5)

20

Y=4(20)

Y=80

4 0
3 years ago
.,..................................
Masteriza [31]
What do you want us to answer??

7 0
4 years ago
Help !!! Thank you guys !
makkiz [27]

Answer:

d

Step-by-step explanation:

7 0
3 years ago
I'll give 20 points
Naddik [55]

it is 3 because if it has infinte solutions than it is = to 0 and 1 and infinite solutions

8 0
3 years ago
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