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Korvikt [17]
3 years ago
14

3y-y help pls ,'-', .................................................................

Mathematics
1 answer:
In-s [12.5K]3 years ago
7 0

Answer:

um 2y

Step-by-step explanation:

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Find the midpoint of ABif A(-3,6) and B(-9,-8).<br> (Only answer if you know it don’t guess)
Sveta_85 [38]

Answer:

hello sorry im late the answer is (-6,-1)

Step-by-step explanation:

8 0
3 years ago
Please help me with this question please help me I beg you
Sindrei [870]

Step-by-step explanation:

Given

f(x) = 5 / 2x - 1

f^-1( x) = ?

Let

y = f(x)

y = 5/2x - 1

Interchanging the roles of x and y we get

x = 5/2y - 1

2y - 1 = 5/x

2y = 5/x - 1

y = (5/x - 1)/ 2

f^-1(x) = ( 5/x - 1) / 2

Hope it will help :)

7 0
3 years ago
HELP!! Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 5 hours. Togeth
joja [24]

Answer:

  • first mechanic: $105/hour
  • second mechanic: $55/hour

Step-by-step explanation:

Let r represent the rate charged by the first mechanic. Then 160-r is the rate charged by the second mechanic. The total of charges is ...

  20r +5(160-r) = 2375

  15r +800 = 2375 . . . . . . eliminate parentheses

  15r = 1575 . . . . . . . . . . . . subtract 800

  r = 105 . . . . . . . . . . . . . . . divide by 15. First mechanic's rate.

  160-r = 55 . . . . . Second mechanic's rate

The first mechanic charged $105 per hour; the second, $55 per hour.

7 0
4 years ago
Read 2 more answers
NEED HELP PLZ
skad [1K]

Answer:

look at the picture i sent......

5 0
3 years ago
Read 2 more answers
Please help! 15 points!!
svetoff [14.1K]

Answer:

Step-by-step explanation:

the last one

3 0
3 years ago
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