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yKpoI14uk [10]
2 years ago
14

Find the area of the quadrilateral ABCD. ​

Mathematics
1 answer:
REY [17]2 years ago
3 0
Answer
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All triangle angles have 60 degree angles. What are the side lengths?
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If all the angles are 60 degrees, this is an equilateral triangle. This means that all the sides have the same lengths. Whatever length side a is, b and c have the same length. 

Hope this helps :)
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Use the drop-down menus to complete each equation so the statement about its solution is true. I’ll give brainliest :))
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Step-by-step explanation:

5 - 4 + 7x + 1 = 7x + 2.

If there are no solutions, then it is of the form 7x + c, where c is any real number besides 2.

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If there are infinitely many solutions, then it is of the form 7x + 2.

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a middle school is made up of grades 6,7, and 8, and has about the same number of male and female students in each grade. Explai
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2 years ago
Help with this pleaseeee​
ELEN [110]

Answer:

(- 3, 37) and (- \frac{5}{2}, \frac{63}{2} )

Step-by-step explanation:

Given the 2 equations

2x² - y + 19 = 0 → (1)

y + 11x = 4 → (2) ← subtract 11x from both sides

y = 4 - 11x → (3)

Substitute y = 4 - 11x into (1)

2x² - (4 - 11x) + 19 = 0

2x² - 4 + 11x + 19 = 0

2x² + 11x + 15 = 0 ← in standard form

(2x + 5)(x + 3) = 0 ← in factored form

Equate each factor to zero and solve for x

2x + 5 = 0 ⇒ 2x = - 5 ⇒ x = - \frac{5}{2}

x + 3 = 0 ⇒ x = - 3

Substitute these values into (3) for corresponding values of y

x = - \frac{5}{2} : y = 4 + \frac{55}{2} = \frac{63}{2} ⇒ (- \frac{5}{2}, \frac{63}{2} )

x = - 3 : y = 4 + 33 = 37 ⇒ (- 3, 37 )

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2 years ago
Answer correct you get brainliest answer.​
iragen [17]

Answer:

part c

Step-by-step explanation:

because i have done it before

3 0
3 years ago
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