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olga nikolaevna [1]
3 years ago
12

Use the graph below for this question: graph of parabola going through negative 5, 1 and negative 4, negative 4. What is the ave

rage rate of change from x = −5 to x = −4?
Mathematics
1 answer:
Gekata [30.6K]3 years ago
6 0
Use the slope formula:
(y2 - y1)/(x2 - x1)
(x1, y1) = (-5, 1)
(x2, y2) = (-4, -4)
You might be interested in
If x = 7 units, y = 13 units, and h = 10 units, then what is the area of the parallelogram shown above?
Firdavs [7]
I hope this helps you




Area=y.h



Area=13.10


Area=130


8 0
3 years ago
You have a 1200-foot roll of fencing and a large field. you want to make two paddocks by splitting a rectangular enclosure in ha
romanna [79]
Let width = w
Let length = l
Let area = A
3w+2l=1200
2l=1200-3w
l=1200-3/2
A=w*l
A=w*(1200-3w)/2
A=600w-(3/2)*w^2
If I set A=0 to find the roots, the maximum will be at wmax=-b/2a which is exactly 1/2 way between the roots-(3/2)*w^2+600w=0
-b=-600
2a=-3
-b/2a=-600/-3
-600/-3=200
w=200
And, since 3w+2l=1200
3*200+2l=1200
2l = 600
l = 300
The dimensions of the largest enclosure willbe when width = 200 ft and length = 300 ft
check answer:
3w+2l=1200
3*200+2*300=1200
600+600=1200
1200=1200
and A=w*l
A=200*300
A=60000 ft2
To see if this is max area change  w and l slightly but still make 3w+2l=1200 true, like
w=200.1
l=299.85
A=299.85*200.1
A=59999.985
8 0
3 years ago
What is the radius of a circle with circumference 17mm? Round to nearest tenth. Use 3.14
WINSTONCH [101]
     C = 2πr
   17 = 2(3.14)(r)
   17 = 2(3.14r)
   17 = 6.28r
 6.28   6.28
2.71 ≈ r
5 0
3 years ago
Ty collects coins from all over the world.He had 25 coins and received 14 on his birthday.What was the percent increase in coins
Ugo [173]
SOLUTION:

Amount added / Original amount × 100% = % increase

14 / 25 × 100 = 56%

FINAL ANSWER:

Therefore, the percentage increase in coins is 56%.

Hope this helps! :)
6 0
2 years ago
15×+2x can be written as?
Usimov [2.4K]

Answer:

15x + 2x can be written as 17x

8 0
3 years ago
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