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statuscvo [17]
4 years ago
10

The formula for a trapezoid relates the area A, the two bases, a and b, and the height, h. A=h ( a+b ) 2 Solve for b.

Mathematics
2 answers:
Alborosie4 years ago
6 0

B= 2a/ h - a


Hope it helps!


Lelu [443]4 years ago
5 0
I believe the right equation for determining the area of a trapezoid is as below,
     A = h(a + b)/2

To determine the expression for b which is the length of one of its bases, we multiply the equation by 2.
    
    2A = h(a + b)

Then, divide both sides of the equation by h,

    2A/h = a + b

Then, subtract a from both sides of the equation,
    2A/h - a = b

Lastly, interchange the sides of the equation to reveal the answer.
<em>     </em>
<em>   b = 2A/h - a </em>
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Given two central angles in any two circles, the ratio of the arc length to the radius of each corresponding circle is equal if
krok68 [10]
First, we have
s1/r1 = s2/r2

The question also states the fact that
s/2πr = θ/360°

Rearranging the second equation, we have 
s/r = 2πθ/360°

Then we substitute it to the first equation
s1/r1 = 2πθ1/360°
s2/r2 = 2πθ2/360°

which is now 
2πθ1/360° = 2πθ2/360°

By equating both sides, 2π and 360° will be cancelled, therefore leaving 
θ1 = θ2
6 0
3 years ago
Change to a mixed number. 13/3
miss Akunina [59]

Answer:

4 and 1/3

Step-by-step explanation:

3 can go into 13 4 times with one left over

my rank is expert

hope this helps

5 0
3 years ago
Is the work shown below correct? Explain your answer.
riadik2000 [5.3K]
(11 + 21) - ( 3 - 100 )
= 32 + 97
= 129

or (11+21)-(3+100)
= 32 - 103
= - 71


I have no idea about your topic but hope it's right! Good luck
8 0
3 years ago
What is the answer to 9÷2/3
AlexFokin [52]

9 : 2/3 =

9 * 3/2 =

(3*9=27)

27/2 Is your answer

4 0
3 years ago
A window shades like a parallelogram has area of 18 1/3 ft.² the height of a window is 3 1/3 feet how long is the base of the wi
morpeh [17]
Explanation:

Datum: Area, <span>A=18<span>13</span>f<span>t2</span></span> and height, <span>h=31ft</span>

Required: Base of the parallelogram?

*Solution: Area, <span>A=b×h</span>
<span>18<span>13</span>f<span>t2</span>=b×31ft</span> solve for base, b
<span>b=<span>553</span>×<span>131</span>=<span>5593</span>=.591f<span>t</span></span>

8 0
3 years ago
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