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Oxana [17]
4 years ago
6

Is this right?......

Mathematics
2 answers:
masya89 [10]4 years ago
5 0
No It Is A Square pyramid
Kitty [74]4 years ago
4 0
No, the correct answer is square pyramid
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Can anyone help a fellow out ?
Annette [7]
Cos(44°) = 90/ x
x = 125.1147
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5 0
3 years ago
A certain math textbook is 3\4 of an inch thick how many of these books will fit on a shelf that is 3 feet wide (1 ft=12in)
Andrew [12]
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6 0
4 years ago
A ball is thrown downward from the top of a 240​-foot building with an initial velocity of 20 feet per second. The height of the
telo118 [61]

Answer:

3.29 s

Step-by-step explanation:

We are given that

Height of building=240

Initial velocity=20ft/s

The height of the ball  after t seconds is given by

h(t)=-16t^2-20t+240

When the ball strike the ground then

h(t)=0

-16t^2-20t+240=0

4t^2+5t-60=0

Quadratic formula:

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

Using the quadratic formula

t=\frac{-5\pm\sqrt{25+960}}{8}

t=\frac{-5\pm\sqrt{985}}{8}

t=\frac{-5+31.28}{8}=3.29 s

t=\frac{-5-31.38}{8}=-4.5

Time cannot be negative .Therefore,

t=3.29 s

6 0
4 years ago
Aidan and Blake are 626 m apart. Cody flies overhead in a plane between them. At the same time, they measure the angle of elevat
Sedbober [7]

Answer:

311 I ALREADY TOKK THIS TEST

Step-by-step explanation:

7 0
3 years ago
Which of the following triangle side lengths will form a triangle?
Crazy boy [7]

Answer:

The correct option is (C) 3 cm, 4 cm, 5 cm.

Step-by-step explanation:

4 0
3 years ago
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