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4 years ago

Need help Award: brainiest

Mathematics

2 answers:

Kisachek [45]4 years ago

6 0

Answer:

are you single and do you got snap?

bazaltina [42]4 years ago

5 0

1: 1/5 + 3.4 = 3.6

2: 0.875 - 3/20 = 0.725

3: 0.1 - ( -31/50) = 0.72

4: 0.3 - 5/24 = 0.09 (5/24 = 0.2083333... So, it has been rounded to 0.21)

5: -5/6 x -0.9 = 0.72 (-5/6 = -0.833333.... It has been rounded to -0.8)

6: 1 3/4 / 2 = 0.875

I hope this helps. :)

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A carpenter is building a rectangular room with a fixed perimeter of 300 ft. what dimensions would yield the maximum area?

Inessa05 [86]

Perimeter = 2(Length) + 2(Width)

300 = 2L + 2W → 150 = L + W → 150 - L = W

Area = Length · Width

$A_{max}$ = L(150 - L) → $A_{max}$ = 150L - L²

There are 2 different methods for solving (depending on which math course you are taking).

Calculus: find the derivative, set it equal to zero, and solve for L.

$A_{max}$ = 150L - L² → 0 = 150 - 2L → 2L = 150 → L = 75

Algebra: find the vertex.

$A_{max}$ = - L² + 150L → L = -b/2a → L = -150/2(-1) → L = 75

Once you solve for L, plug it into the Perimeter equation to solve for W:

150 - L = W → 150 - 75 = W → W = 75

Answer: 75ft x 75ft

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4 years ago

Pls help me somebody

True [87]

Answer:

it is 36 inches

Step-by-step explanation:

8 0

3 years ago

Which expression is equivalent to (3²)

erastovalidia [21]

Answer:

3 + 6 = 9

2 + 1 + 4 + 2 = 9
18 : 2 = 9
3 + 3 + 3 = 9

Step-by-step explanation:

Which expression is equivalent to

(3²)

3² = 9

3 + 6 = 9

2 + 1 + 4 + 2 = 9
18 : 2 = 9
3 + 3 + 3 = 9

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2 years ago

Solve for X in the triangle round your answer to the nearest tenth

maksim [4K]

Answer:

X =3.410

Step-by-step explanation:

Sin(angle) = opposite/hypotenuse

Sin(43) =x/5

0.6819 = x/5

X = 3.41

Insta: lankey.t

4 0

3 years ago

you're laying plumbing on a construction site. The blueprints call for 8 sections of 5 3/4 inch long piping. how many inches of

liraira [26]

Hey!

---------------------------

Solution:

8 = 8/1

5 3/4 = 23/4

23/4 * 8/1 = 184/4

184/4 = 46

---------------------------

Answer:

He will use 46 inches of piping.

---------------------------

Hope This Helped! Good Luck!

6 0

4 years ago