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alexandr402 [8]
2 years ago
10

What is the perimeter of the quadrilateral?

Mathematics
2 answers:
kotykmax [81]2 years ago
8 0

Answer:

12.3 in

Step-by-step explanation:

P = 4.1 + 2.2 + 3 + 3 = 12.3\ in

olasank [31]2 years ago
6 0

Answer:

24.6

Step-by-step explanation:

you multiply them all by two then add them together. :P

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3.4k+(0.63−0.81k)÷0.9=5.7
Monica [59]
The answer is k = 2
5 0
3 years ago
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Solve for the missing angle with the question mark
mash [69]

Answer:

it's 60

Step-by-step explanation:

I have done that before

4 0
3 years ago
Type the correct answer in the box use/ for the fraction bar
Zarrin [17]

Answer:

see explanation

Step-by-step explanation:

given the 2 equations

y = x² - 2x - 19 → (1)

y + 4x = 5 → (2)

substitute y = x² - 2x - 19 into (2)

x² - 2x - 19 + 4x = 5 ( subtract 5 from both sides )

x² + 2x - 24 = 0 ← in standard form

(x + 6)(x - 4) = 0 ← in factored form

equate each factor to zero and solve for x

x + 6 = 0 ⇒ x = - 6

x - 4 = 0 ⇒ x = 4

substitute each value of x into (1) for corresponding y- coordinate

x = - 6 : y = (- 6)² - 2(- 6) - 19 = 36 + 12 - 19 = 29 ⇒ (- 6, 29)

x = 4 : y = 4² - 2(4) - 19 = 16 - 8 - 19 = - 11 ⇒ (4, - 11)

the solutions are (- 6, 29), (4, - 11)


6 0
3 years ago
So difficult!!! Someone help
Naya [18.7K]
When two lines cross like this, sum of measures of opposite angles is 180.
this means that:
measure angle AEC + measure angle BED = 180
4x-40 + x+50 = 180
5x +10 = 180
5x = 170
x = 34
therefore:
measure angle AEC = 4x-40 = 4(34)-40 = 96
measure angle BED = x+50 = 34+50 = 84
5 0
3 years ago
I can't figure this one out.
lyudmila [28]

Answer:

it increase and by 16.7

Step-by-step explanation:

6 0
3 years ago
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