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BigorU [14]
4 years ago
14

An object is launched from ground level with an initial velocity of 400 feet per second. To the nearest tenth of a second, how l

ong does it take the object to reach a height of 650 feet? [Use the formula h = -16t2 + v0t + s0.] A) 1.3 seconds B) 1.7 seconds C) 2.1 seconds D) 2.5 seconds
Mathematics
1 answer:
kifflom [539]4 years ago
4 0

Answer:

idk

Step-by-step explanation:

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80% are big dogs

Step-by-step explanation:

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3 years ago
Which circle shows AB that measures 60°?<br> 60°<br> 0<br> 60°<br> A60°
PtichkaEL [24]

Answer:

The answer is D

Step-by-step explanation:

Have a great day :)

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4 years ago
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Write the product in standard form.<br>(2 - 3i)(2 + i)​
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Brainelist?

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7-4i

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Please help me. Noura is redecorating her house. She needs to work out the area of the wall around her triangular window in orde
Vinvika [58]

Answer:

a. 277.3 m²

b. $307.86

Step-by-step explanation:

a. Area of the wall to be painted = area of rectangle - area of triangle

= L × W + ½×a×b×sin θ

L = 17 m

W = 14 m

a = 8.7 m

b = 9.5 m

θ = 72°

Plug in the values into the equation

Area of the wall = (17×14) + (½*8.7×9.5×sin 72)

Area of the wall = 238 + 39.3024105

Area of the wall to paint ≈ 277.3 m²

b. 20 liters of paint of 1 container cost $21.99

If 1 liter of paint covers 1m², therefore,

277.3 m² will need = 277.3 × 1 = 277.3 liters of paint.

20 liters = 1 container of paint

277.3 liters = 277.3/20 = 13.865 ≈ 14 containers

1 container = $21.99

14 containers = 21.99 × 14 = $307.86

8 0
3 years ago
Segment AB has endpoints A(-1,3) and B(0,7). What is the length of AB?
ololo11 [35]

Answer:

\sqrt{17}

Step-by-step explanation:

Calculate the length (d) using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 1, 3) and (x₂, y₂ ) = (0, 7)

d = \sqrt{(0+1)^2+(7-3)^2}

   = \sqrt{1^2+4^2}

   = \sqrt{1+16}

   = \sqrt{17} ≈ 4.1 ( to 1 dec. place )

5 0
3 years ago
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