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Afina-wow [57]
4 years ago
5

Write a linear function f with given values

Mathematics
1 answer:
Sergio [31]4 years ago
8 0
If f(-2)=1 and f(1) = 7, then 2 pts on the str. line are (-2,1) and (1,7).

                                                                                  7 - 1
The slope of the line connecting these 2 pts is m = ---------- = 6/3 = 2
                                                                                   1-(-2)

Use the slope-intercept formula.  Let the point be (1,7) and the slope be 2:

7 = 2(1) + b; find the y-intercept, b:

7 = 2 + b, so b = 5, and the equation of this line through the 2 given points is then 

y = 2x + 5 (answer)
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3 years ago
Two trees are next to each other in a clearing. The first tree is 13 feet tall and casts an 8-foot shadow. The second tree casts
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2 years ago
After driving to a riverfront parking lot, Bob plans to run south along the river, turn around, and return to the parking lot, r
mars1129 [50]

Answer:A) 1.5

Step-by-step explanation: Bob runs at the rate of 8mins per mile

In 60mins his rate would be=60/8=7.5

Let a be the distance he further runs south

2s+3.25

Total distance covered in 50mins=Time=distance/speed=

50/60

50/60=2s +3.25/7.5

Cross multiply

60(2s+3.25)=50×7.5

120s+195=375

120s=375-195

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5 0
3 years ago
A hexagonal pyramid that has a slant height of 39 cm and its hexagonal base has a radius of 10√3 cm.
VMariaS [17]

Answer: 225

Step-by-step explanation:

Volume of the pyramid is calculated as 1/3 bh, where b is base and h is height

Given height as 39cm and a base of 10√3cm = 10 x √3, where √3= 1.73; base = 10 x 1.73 = 17.3

Slot the values into the formula:

Volume = 1/3 × 17.3 x 39

= 1/3 × 674.7 = 674.7/3

Volume = 224.9 approximately 225.

I hope this helps.

3 0
3 years ago
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