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Inga [223]
3 years ago
10

Find the inverse of the function: { (3,5), (1, 6), ( -1, 7), (-3, 8)}

Mathematics
1 answer:
marysya [2.9K]3 years ago
4 0

Answer:

{(5,3) , (6,1), (7,-1), (8,-3)}

Step-by-step explanation:

inverse of (x,y) is (y,x)

inverse of { (3,5), (1, 6), ( -1, 7), (-3, 8)} is

{(5,3) , (6,1), (7,-1), (8,-3)}

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Find the roots for y = 3x2 - 5x - 1
Mars2501 [29]

Step-by-step explanation:

3x squared - 5x - 1 equals 0 using the method of completing the square he gets 3 x square - 5 x equals one and then x squared - 5/3 x is equal to 1 what does dividing should I pray then you come down you get X squared - 5/3 x into (- 5/6 or squared is equals 1/3 + but it will be negative 5/6 or squared you good like them send any you get so at the end your roots are going to be x equals 1.847 or x equals negative 0.180 results

8 0
3 years ago
Lacey picks blueberries and raspberries from her garden. She has ⅕ as many pounds of blueberries as raspberries. If she picks 1⅘
Mrac [35]

Answer:

  • 2 1/4 pounds of blueberries

Step-by-step explanation:

Blueberries - b, raspberries - x

<u>Equations as per question:</u>

  • b = x * 1/5
  • b + 1 4/5 = x

<u>Eliminate b and solve for x:</u>

  • 1/5x = x - 1 4/5
  • x - 1/5x = 1 4/5
  • 4/5x = 9/5
  • x = 9/5 : 4/5
  • x = 9/5 *5/4
  • x = 9/4
  • x = 2 1/4
5 0
3 years ago
Read 2 more answers
A road is 4 cm long on the map. Find the actual length of the road.
Usimov [2.4K]

The distance between two cities is

75

k

m

s

.

Explanation:

As a road of

4

c

m

.

on road map indicates a road of length equal to

30

k

m

.

Each

c

m

.

on map indicates

30

4

=

7.5

k

m

s

.

Hence a distance of

10

c

m

.

between two cities on the map indicates

7.5

×

10

=

75

k

m

s

7 0
3 years ago
Solve by elimination
DiKsa [7]

2x-y=-8
+
y=2
2x=-6
x=-3
2*-3-y=-8
-6-y=-8
-y=-2

x=-3 and y=2
7 0
3 years ago
6.7-3^2.9+4^3 evaluate the expression. show your work on a piece of paper.<br><br> 50+ points~!
vovangra [49]

Answer:

25

Step-by-step explanation:

6.7 -  {3}^{2} .9 +  {4}^{3}  \\  \\  = 42 - 9.9 + 64 \\  \\  = 42 - 81 + 64 \\  \\ =  106 - 81 \\  \\  = 25

7 0
3 years ago
Read 2 more answers
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