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White raven [17]
2 years ago
8

Need help, please 10 pts

Mathematics
1 answer:
vagabundo [1.1K]2 years ago
5 0

Answer:

5)-2b+ 15

6) 3-12n

7) -30+9n

8) -48a+36

9)-14/5y+91

10)-55/24n -185/25

11)-1n+9/25

12)-1/3n+ 25/21

Step-by-step explanation:

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Please HELP!!!!! I need to know the missing value. PLease!!!!!!!!!!!!!!
GuDViN [60]

Answer:

w = 21.4 ft

Step-by-step explanation:

Area of Trapezoid = Area = (a+b)/2 * h

Where a and b are the bases of trapezoid, and h is the height.

In the figure we are given:

a= 32.3 ft

b=w=?

h= 22.9 ft

Area = 614.865 ft²

Putting values in formula

Area = (a+b)/2 * h

614.865 = (32.3 + w) / 2 * 22.9

1229.73 = 32.3 + w * 22.9

1229.73 / 22.9 = 32.3 +w

53.7 -32.3 = w

=> w = 21.4 ft

7 0
3 years ago
there is a line that includes the point (1,5) and has a slope of 15. what is its equation in slope-intercept form?​
olchik [2.2K]

Answer:

y = 15x - 10

Step-by-step explanation:

slope is given: 15

(x, y) is given: (1, 5)

plug values into y = mx + b:

5 = (15)(1) + b

solve for b:

b + 15 = 5

b = -10

rewrite the equation:

y = 15x - 10

7 0
3 years ago
Please show working out, thanks!
sveticcg [70]
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Answer:

25

Step-by-step explanation:

6 0
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