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aivan3 [116]
3 years ago
10

HELP SOMEONE PLEASE!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
omeli [17]3 years ago
6 0

Answer:

3/10

Step-by-step explanation:

The question asks for the probability of finding 4 or more, so first, you must add up all of the teenagers that have 4 or more shoes. Both the 4 and 5 categories fit, so add 20 and 10. Then, find the total number of people in the sample size. Overall, 100 teenagers are represented. Finally, put the number of people that have 4 or more shoes, 30, over the sample size, 100. This equals 30/100 which should be simplified to 3/10.

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The area of a circle is increasing at the rate of pi cm^(2)/min. At what rate is the radius increasing when the area is 4pi cm^(
Vikentia [17]
This problem deals the rate of change.
For the formula of the area of a circle, we differentiate both sides with respect to time t.
(A = πr^2) d/dt
dA/dt = 2πr (dr/dt)

Since we don't know yet the radius r, the area of a circle is given.
A = πr^2
r^2 = A/π = 4π/π
r^2 = 4
r = 2 cm

Therefore, the rate of the radius is
dA/dt = 2πr (dr/dt)
dr/dt = (dA/dt)/(2πr)
dr/dt = π/(2π*2)
dr/dt = 0.25 cm/min

Hope this helps.
3 0
3 years ago
What is the solution for the following equation 3(2x+3)=2(3x+4)?
ki77a [65]

Answer:

<h2><u><em>no solution, the equation is false</em></u></h2>

Step-by-step explanation:

what is the solution for the following equation 3(2x+3)=2(3x+4)?

3 * (2x + 3) = 2 * (3x + 4)

6x + 9 = 6x + 8

6x - 6x = -9  + 8

0 = ±1

the equation is false

7 0
2 years ago
Read 2 more answers
Retake on #7<br>Sorry that I don't do this in the first place
Veronika [31]
K=2.35. You are correct. 

Have a nice day! :)
8 0
3 years ago
1) Cathy borrows $3280 at 0.3% simple interest per month. When Cathy pays the loan back 9 years later, what is the total amount
aksik [14]

Answer:

Step-by-step explanation:

we calculate how much 0.3% is from 3280

y=3280*0.3/100=9.84$

months in 9y

12*9=108

the interest of 9y

108y=1062.72$

the sum of interest + the money borrowed

1062.72+3280=4342.72$

6 0
2 years ago
Read 2 more answers
Jauanita and Keenan own a camping supply store and just put in an order fir flashlights and sleeping bags. The number of flashli
OLEGan [10]

Answer:

  • 85 flashlights
  • 17 sleeping bags

Step-by-step explanation:

One group of 5 flashlights and 1 sleeping bag will cost ...

  $12×5 +45 = $105

The total cost of the order is $1785/$105 = 17 times that amount, so there were ...

  17 sleeping bags ordered

  17×5 = 85 flashlights ordered

3 0
3 years ago
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