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gizmo_the_mogwai [7]
2 years ago
10

The graph shows the temperature of coffee while it cools.

Mathematics
1 answer:
DaniilM [7]2 years ago
6 0

Answer:

10 Minutes

Step-by-step explanation:

At roughly 10 minutes, the y-axis meets a point at the x-ais that can be shown as (40,10)

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The line goes through the ordered pair (10, 6) It has a y-intercept of -2.
VLD [36.1K]

Answer: the x-intercept would be (2,-2)

Step-by-step explanation:

6 0
3 years ago
3x + y - z= -6<br> 2x - y + 2z = 8<br> 4x + y - 3z = -21
Flauer [41]

Answer:

x=-1

y=4

z=7

Step-by-step explanation:

3x + y - z= -6(1)

2x - y + 2z = 8(2)

4x + y - 3z = -21(3)

(1)+(2): 5x+z=2(4)

(2)+(3): 6x-z=-13(5)

(4)+(5): 11x=-11

x=-1

so z=2-5x=7

y=-6-3x+z=4

8 0
3 years ago
How to work it out<br> And who drove farther and how many miles farther
OlgaM077 [116]
Easy, just divide
kelly=440mi/8hr=220mi/4hr=110mi/2hr=55mi/1hr
alberto=468mi/9hr=156mi/3hr=52mi/1hr

55>52

kelly drove 55mi in 1 hour
55-52=3
she drove 3 miles more  in 1 hour
5 0
3 years ago
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Igoryamba
Complementary angles add up to 90 degrees whereas Supplementary angles add up to 180 degrees.

If this helps can I please have brainiest? Thanks
3 0
3 years ago
Read 2 more answers
Convert 86 to a z-score
Semmy [17]

Answer:

Step-by-step explanation:--0.9

5 0
3 years ago
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