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Goshia [24]
3 years ago
12

Convert the following decimal to a fraction0.900

Mathematics
2 answers:
torisob [31]3 years ago
8 0

Answer:

9/10

Step-by-step explanation:

german3 years ago
8 0

Answer:

9/10 is the answer, the 9 is in the tenth place

Step-by-step explanation:

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Is the figure a rectangle? Explain.
luda_lava [24]

The correct option is b. No, it is not a rectangle because the sides of the parallelogram do not meet at right angles.

<h3>How to explain the information?</h3>

The figure is a parallelogram and one diagonal measure 28 units.

In this case, it is not a rectangle because the sides of the parallelogram do not meet at right angles.

Therefore, the correct option is B.

Learn more about rectangles on:

brainly.com/question/25292087

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5 0
2 years ago
Simplify: -(sqrt 16x^2) if x&lt;0
hammer [34]

Answer:

16 x²

Step-by-step explanation:hope this helps and maybe you could give me a brainlist?

8 0
3 years ago
Mrs. Jackson made a line plot of the times it took students to complete a project.
jeyben [28]

Answer: So what's the question???

Step-by-step explanation:

6 0
2 years ago
A balloon rises at the rate of 10 ft/sec from a point on the ground 100 feet from an observer. Find the rate of change of the an
lubasha [3.4K]

The rate of change of the angle of elevation of the balloon from the observer when the balloon is 100 feet above the ground is  1/20 degree/sec.

<h3>What is angle of elevation?</h3>

It is described as a relationship between an oblique line from the observer's eye to an item above his eye and the horizontal plane. This angle eventually develops above the surface. The angle of elevation is made in such a way that it is above the observer's eye, as the name suggests.

Calculation for the rate of change of angle of elevation-

According to the question,

A balloon rises at the rate of 10 ft/sec from a point on the ground 100 feet from an observer.

The balloon is 100 feet above the ground.

Let the height of the balloon be 'h' ft.

Then tanØ = h/100

h = 100tanØ

Differentiate the above equation with respect to time.

dh/dt = 100 sec² Ø (dØ/dt)

We know dh/dt = 10 ft/sec.

when h = 100

tanØ = 100/100 = 1/1

tanØ = Perpendicular/Base

On comparing above two equations,

Perpendicular = 1; Base = 1.

By Pythagoras the hypotenuse is,

H² = P² + B²

    = 1² + 1²

    = 2

H = √2

Now, calculate the value of cosØ.

cosØ = B/H = 1/√2

Squaring both side

cos² Ø = 1/2

sec² Ø = 1/cos² Ø

sec² Ø = 2

The main equation was,

dh/dt = 100 sec² Ø (dØ/dt)

Substitute the values,

dØ/dt = (dh/dt )/100 sec² Ø

         = (10)/(100×2)

dØ/dt = 1/20 degree/sec.

Therefore, the rate of change of the angle of elevation of the balloon from the observer is  1/20 degree/sec.

To know more about the angle of elevation, here

brainly.com/question/9817377

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8 0
1 year ago
Solve for x.<br><br> x = <br> 30<br> 27<br> 33
pentagon [3]

Answer:

the answer is 27

Step-by-step explanation:

3x+9+90=180

3x+99=180

3x=180-99

x=81/3

x=27

7 0
2 years ago
Read 2 more answers
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