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jeyben [28]
3 years ago
10

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 s? 100+20100+2

0 100−20100−20 1002010020 100⋅20
Mathematics
2 answers:
Brilliant_brown [7]3 years ago
7 0
<h3>the answer is <em><u>100/20</u></em></h3>

i know that this is the answer because....<3

<h2>→i took the test←</h2>
Alborosie3 years ago
4 0
Use the formula for the constant speed: distance run  / time elapsed

Then the expression is 100 / 20.
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Please help IM SO CONFUSED!
rodikova [14]

Answer:

18

Step-by-step explanation:

You can see from the table that 2 bracelets are made every 30 minutes.

There are 9 intervals of 30 minutes each in 4.5 hours.

So, the number of bracelets that are made in 4.5 hours is

9x2=18

Another way to see this is to note from the table that 4 bracelets are made in 60 minute, which is 1 hour.  So, in 4 hours, 16 bracelets will be made. Also, from the table, 2 bracelets are made in 30 minutes, which is 1/2 hour.  So, adding up, 18 bracelets are made in 4.5 hours.

4 0
3 years ago
Which equation represents the circle described? (in picture)
Sedaia [141]
You are right. In circle equation we have =r² so the correct answer will be C od D.  But we have to calculate the center of a circle.

x^2+y^2-8x-6y+24=0\quad|-24\\\\(x^2-8x)+(y^2-6y)=-24

Complete the square:

x^2-8x+a^2\implies a=\dfrac{8x}{2x}=4\implies x^2-8x+4^2\\\\\\y^2-6y+b^2\implies b=\dfrac{6y}{2y}=3\implies y^2-6y+3^2

And we have:

(x^2-8x)+(y^2-6y)=-24\\\\(x^2-8x+4^2)-4^2+(y^2-6y+3^2)-3^2=-24\\\\&#10;(x-4)^2+(y-3)^2-16-9=-24\\\\(x-4)^2+(y-3)^2-25=-24\quad|+25\\\\\boxed{(x-4)^2+(y-3)^2=1}

So the answer is C (the same left side of equation).
6 0
3 years ago
How would I do this problem? In trapezoid PQRS, PQ is parallel to SR. Find the area of PQRS. Leave your answer is simplest radic
Mrac [35]
Can u take its pictures and post it bcuz it might be easer to answer
7 0
3 years ago
Read 2 more answers
Determine how much money you will have after 20 years if you invest 20,000$ at 8%, compounded continuously?
Westkost [7]
20 000 * 0.08(8%)= 1600
1600 * 20(years) = 32 000

Therefore you would have $32 000 after 20 years
8 0
3 years ago
Read 2 more answers
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Oksana_A [137]
The volume is 1017.88
If you search up “how to solve a cone” you can get the same answer
6 0
2 years ago
Read 2 more answers
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