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iragen [17]
2 years ago
11

Someone help with this plz? Will mark Brainlist

Mathematics
1 answer:
Vladimir [108]2 years ago
5 0

Answer:

here

Step-by-step explanation:

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A=1/2h (b+c) solve for b
Illusion [34]
A=1/2h(b+c)
times both sides by 2/1
2A=h(b+c)
divide both sides by h
\frac{2A}{h}=b+c
minus c from both sides
\frac{2A}{h}-c=b

8 0
3 years ago
Come hither big brains
katrin2010 [14]

Answer:

The answer is c

Step-by-step explanation:

7 0
3 years ago
If -4 is a root of the equation x^2+px-4=0 and the equation x^2+px+q=0 has equal roots, find the value of p and q
zubka84 [21]

Answer:

p = 3, q = 2.5

Step-by-step explanation:

Given that x = - 4 is a root of the equation, then

(- 4)² - 4p - 4 = 0, that is

16 - 4p - 4 = 0

12 - 4p = 0 ( subtract 12 from both sides )

- 4p = - 12 ( divide both sides by - 4 )

p = 3

Also given that the equation x² + px + q = 0 has equal roots

Thus the value of the discriminant b² - 4ac = 0

Here a = 1, b = p and c = q, thus

p² - 4q = 0 ← substitute p = 3 from above into the equation

9 - 4q = 0 ( subtract 9 from both sides )

- 4q = - 9 ( divide both sides by - 4 )

q = 2.5

8 0
3 years ago
Which ordered pair is a solution of the equation y = −8x + 7?
Feliz [49]

Answer:

Step-by-step explanation: B. (8, -57)

6 0
2 years ago
DI<br>A rectangle measures x cm <br>by (x + 4)cm.What are the width and length of the rectangle?​
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Answer:

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