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expeople1 [14]
2 years ago
12

How much is 55 as a percentage of 50?

Mathematics
2 answers:
Nastasia [14]2 years ago
8 0

Answer:

55 is 110% of 50

Step-by-step explanation:

zhenek [66]2 years ago
7 0

Answer:

50 27.5

50.01 27.5055

50.02 27.511

50.03 27.5165

Step-by-step explanation:

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"How did you program your robot to move in a perfect triangle?" Arianna asks, sounding impressed. "It always comes back to exact
eduard

Answer:

Step-by-step explanation:

In Raphael's example,  the robot moves in a perfect triangle. A perfect triangle is known to have three equal sides and three equal angles of 60° each. Raphael's example mentions the length of two sides of the triangle as 3m and 4m and it also mentions the angle the robot turns 120°

Therefore the angle created is 180°-120°= 60° which is an angle of a perfect triangle.

The distance that the robot has to calculate would be equal to the length of the third side of the triangle

lets assume the length of the third side of the triangle to be \beta and the two remaining angles to be a and b.

To get the distance \beta, let's list out what we know about this triangle.

side a = 3m

side b = 4m

side c =<em> β</em>

Angle 1 = Angle made between side 2 and 3 = A

Angle 2 = Angle made between side 1 and 3 = B

Angle β = Angle made between side 1 and 2 = 60°

The law of cosines states that

\beta ^{2} = a^{2} + b^{2} - 2ab(cosβ)

\beta ^{2} = 3^{2} + 4^{2} - 2×3×4(cos 60)

\beta ^{2}   = 9 + 16 - 24(0.5)

\beta ^{2}   = 9 + 16 - 12

\beta ^{2}   = 13

<em>β</em> = \sqrt{13}

<em>β</em> = 3.6055512755 m

The distance the robot will compute is 3.61 meter to the nearest hundredth.

5 0
3 years ago
Read 2 more answers
i have 30 coins, all nickels, dimes and quarters, worth $4.60. there are two more dimes than quarters.. how many of each kind of
Oliga [24]

Answer:

Step-by-step explanation:

I have 30 coins, all nickels, dimes, and quarters, worth $4.60. There are two more dimes than quarters. How many of each kind of coin do I have.

..

let quarters be x

dimes = x+2

...

dimes + quarters = x+x+2=2x+2

...

nickels = 30-(2x+2)

...

5(30-(2x+2))+10(x+2)+25x=460

5(30-2x-2)+10x+20+25x=460

150-10x-10+10x+20+25x=460

160+25x=460

-160

25x=460-160

25x=300

/25

x=300/25

x=12 ---- quarters

x+2= 12+2=14 dimes

30-(2x+2)=4 nickels

...

check

4*5+14*10+12*25=20+140+300=460

4 0
2 years ago
What is the multiplicative inverse of -27 and what is the multiplicative inverse for 7/9 and -9/16
liberstina [14]

The multiplicative inverse of a number is the number when you multiply it, it gives you the product of 1.

So for - 27, what number will give us 1 when we multiply it by -27

-27 * -1/27 = 1

So the multiplicative inverse of -27 = -1/27

7/9 * 9/7 = 1

-9/16 * -16/9 = 1

So in essence, just take the number and flip it

-27 = -1 / 27

7/9 = 9/7

-9/16 = -16/9

3 0
3 years ago
Aran moved a cone-shaped pile of sand that had a height of 4 ft and a radius of 3.2 ft. He used all of the sand to fill a cylind
Yuliya22 [10]
So volue of a cone=area of circle base times heigt times 1/3

height=4
area of base=pi times r^2
area of abse=aprox 3.14 times 3.2^2=32.1536
32.1536 times 4 times 1/3=32.1536 times 4/3=42.87 the amount of sand is 42.9 ft^3
5 0
3 years ago
Whats the producr of -2x cubed + x - 5?​
baherus [9]
The answer is -2x^3+10x^2
4 0
3 years ago
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