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laila [671]
3 years ago
10

Se Home

Mathematics
1 answer:
aliya0001 [1]3 years ago
8 0
It’s 20000 but not sure about it
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7x2 - 2x2 = .......................................
natulia [17]

Answer:

10

Step-by-step explanation:

7*2 - 2*2 = 14 - 4 = 10

Plz mark as brainliest!

4 0
3 years ago
Read 2 more answers
Which linear inequality is represented by the graph?
monitta

Answer:

D

Step-by-step explanation:

The correct answer is D

5 0
3 years ago
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The perimeter of a rectangular field is 60 meters. Its area is 200 square meters. Find its dimensions.
Vanyuwa [196]

Answer:

20 m by 10 m

Step-by-step explanation:

let w be width and l be length , then

2(l + w) = 60 ( divide both sides by 2 )

l + w = 30 ( subtract w from both sides )

l = 30 - w → (1)

lw = 200 → (2)

Substitute l = 30 - w into (2)

w(30 - w) = 200 ← distribute parenthesis on left side

30w - w² = 200 ( subtract 200 from both sides )

30w - w² - 200 = 0 ( multiply through by - 1 )

w² - 30w + 200 = 0 ← in standard form

(w - 10)(w - 20) = 0 ← in factored form

Equate each factor to zero and solve for w

w - 10 = 0 ⇒ w = 10

w - 20 = 0 ⇒ w = 20

Substitute these values into (1)

l = 30 - 10 = 20

l = 30 - 20 = 10

dimensions of field is 20 m by 10 m

4 0
2 years ago
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(20m + 3) - (7 m - 5)<br> Find the difference
DedPeter [7]
20m-7m= 13m
3--5=8
13m+8
8 0
2 years ago
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Find the mean absolute deviation for the set s={85, 90, 68, 75, 79}
FromTheMoon [43]

Answer: 6.48

Step-by-step explanation:

Mean is 79.4, population size is 5

MAD formular is addition of variance point /population size

n∑∣xi​−xˉ∣​

8 0
3 years ago
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