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Sergeeva-Olga [200]
3 years ago
10

Which integer is closest to 0? -7 4 9 -9

Mathematics
1 answer:
AVprozaik [17]3 years ago
8 0

Answer:

4 is closer to 0 because other numbers are way more or way less.

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$2000 is invested in an account at interest rate
makkiz [27]

Answer:

For the money to be doubled,it will take approximately 20 years

For the to triple,it will take approximately 31 - 32 years

Step-by-step explanation:

Please refer to the attachment(s) for explanations

6 0
3 years ago
Find the measure of angle BEA
Ronch [10]

Answer:

130°

Step-by-step explanation:

Line AD = 180°

Angle BED = 50°

180°-50°=130°

3 0
4 years ago
Read 2 more answers
1. Factor and simplify: cos² xcsc² x-cos²xcot² x
Vera_Pavlovna [14]

Answer:

Cos² x

Step-by-step explanation:

<h3>Trigonometry:</h3>

    \sf Cos^2 \ x *Csc^2 \ x-Cos^2 \ x *Cot^2 \ x = Cos^2 \ x (Csc^2 \ x - Cot^2 \ x)

                                                        \sf = Cos^2 \ x \left(\dfrac{1}{Sin^2 \ x} - \dfrac{Cos^2 \ x}{Sin^2 \ x}\right)\\\\= Cos^2 \ x \left(\dfrac{1-Cos^2 \ x}{Sin^2 \ x}\right)\\\\\boxed{\bf Indentity: \ 1 - Cos^2 \ x = Sin^2 \ x}\\\\\\= Cos^2 \ x \left(\dfrac{Sin^2 \ x}{Sin^2 \ x}\right)\\\\= Cos^2 \ x

4 0
2 years ago
Do not give me any links or files.
Paha777 [63]

Answer:

972 u³

Step-by-step explanation:

The radius is 9 . We can use formula ,

⇒ V = 4/3 π r³

⇒ V = 4/3 × π × 9³

⇒ V = 4 × π × 81 × 3

⇒ V = 972 unit³

7 0
3 years ago
Help me!!! please!!! ​
son4ous [18]

Step-by-step explanation:

I guess it means we need to calculate the height of the green dot on the bicycle wheel that moves as the wheel turns by a certain radial distance.

since the circumference of a circle is 2×pi×r, the circumference for a circle with radius = 1 is simply 2×pi (ft in this case).

pi/2 = 90° or a quarter rotation.

pi = 180° or a half rotation.

3×pi/2 = 270° or 3 quarter rotation.

2×pi = 360° or a full rotation.

the height starts at 6ft, and can go up 2 more ft (the diameter of the wheel) to 8 ft.

so, the table is

0 6

pi/2 7 (6+1)

pi 8 (6+2)

3×pi/2 7 (6+2-1)

2×pi 6 (6+2-2) back to the starting height

so,

a = 6

b = 7

c = 8

d = 7

e = 6

3 0
3 years ago
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