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marshall27 [118]
3 years ago
5

volunteers at sam's school use some of the student council's savings for a special project.they buy 7 backpacks for 8$ each and

fill each backpack with paper and pens that cost 5$. by how much did the student council's savings change becasue of this project
Mathematics
1 answer:
otez555 [7]3 years ago
8 0
Wait how much do they have and how much can each hold
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Find the mean of the data
Triss [41]
<h3>Answer:  6.282</h3>

Explanation:

Refer to the table below. I've added a third row where I multiplied each x value with its corresponding frequency value f. We can refer to this row as the xf row.

Once we know the xf values, we add them up to get 245.

We'll then divide that result over the sum of the frequency values (add everything in the second row). The sum of the frequency values is 39.

So the mean is approximately: 245/39 = 6.282051 which rounds to 6.282

Notice that this mean value is fairly close to the x value which has the highest frequency.

5 0
3 years ago
Situation:
Arturiano [62]

Answer:

t = 6162  years

Step-by-step explanation:

Apparently you are asked to use the constant k = 0.0001 instead of the most common 0.00012. We'll answer the problem using such number you typed, but make sure that there is no omission in your typing.

The equation to use is that for carbon decay:

N(t)=N_0\,e^{-0.0001\,\,t}

If the skull contains 54% of its original amount of C14, then that means that :

N(t)=0.54 \,\,N_0

we use this to solve for the time (t) in our equation:

0.54\,\,N_0=N_0\,e^{-0.0001\,\,t}\\\frac{0.54\,\,N_0}{N_0}=e^{-0.0001\,\,t}\\0.54=e^{-0.0001\,\,t}\\ln(0.54)=-0.0001\,\,t\\t=\frac{ln(0.54)}{-0.0001} \\t=6161.86\,\,years

which rounded to the nearest year as requested gives :

t = 6162  years

8 0
3 years ago
Given the following polynomial find the maximum possible number of turning points. f(x)=x^11+x^10+x^12+x^9
11111nata11111 [884]
Turning points are inflection points

think
1st degree (linear) has no turning/inflecion points
2nd degree (quadratic, parabola) has  1 turning/inflection point
so
nth degree has n-1 turning/inflection point

this is 11th degree since highest power is 12
12-1=11
11 turning oints
5 0
3 years ago
There are 20 boys and 35 girls that want to participate in the school play. If each set must have the same ratio of boys to girl
faust18 [17]
The greatest number of sets would be 20 with one girl and one boy in each.
4 0
4 years ago
Does anyone know this one I would really need help ​
Novay_Z [31]

Answer:

10

Step-by-step explanation:

ok so first you eat my poop then you eat your own poop and then you eat my dog poop

7 0
3 years ago
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