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Zepler [3.9K]
3 years ago
6

Ans quick please its important

Mathematics
1 answer:
Amanda [17]3 years ago
5 0

Answer: ok

Step-by-step explanation:

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Find the volume of a square pyramid with the side length 3cm and height of 5cm.
Alexxx [7]

Answer:

Step-by-step explanation:

base b = 3 cm

height h = 5 cm

volume = (⅓)b²h = 15 cm³

4 0
3 years ago
How do you solve 4x - 18 < -x -3
GaryK [48]

Answer:

x<3

Step-by-step explanation:

--add 18--

4x-18+18

--simpifly--

4x

--add x--

4x+x

--simpifly--

5x

--divide both side by 15--

x<3

sorry for late

<3

Red

6 0
3 years ago
Of great importance to residents of central Florida is the amount of radioactive material present in the soul of reclaimed phosp
alukav5142 [94]

Answer:

See figure attached and explanation below.

Step-by-step explanation:

For this case we have the following dataset given:

0.74, 0.32, 1.66, 3.59, 4.55, 6.47, 9.99, 0.7, 0.37, 0.76, 1.9, 1.77, 2.42, 1.09, 2.03, 2.69,2.41, 0.54, 8.32, 5.70, 0.75, 1.96, 3.36, 4.06, 12.48

And for this case we can use the followinf R code to create the frequency histogram.

> x<-c(0.74, 0.32, 1.66, 3.59, 4.55, 6.47, 9.99,0.7, 0.37, 0.76, 1.9, 1.77, 2.42, 1.09, 2.03, 2.69,2.41, 0.54, 8.32, 5.70, 0.75, 1.96, 3.36, 4.06,12.48)

> length(x)

[1] 25

> hist(x, prob=TRUE)

And for this case we have the histogram on the figure attached. For the number of classes we use the formula of sturges:

k = 1 +3.322 log (n)= 1+3.3 log(25)= 5.61

And for this case we have approximately 6 classes. And that's what we can see on the figure attached

As we can see most of the values are on the left so then we have a right skewed to the right and the distribution is assymetrical, with most of the values between 0 and 6

4 0
4 years ago
Three years from now Tom will be twice as old as Jean and two years ago the sum of their ages was 26. How old is Tom now?
Ber [7]

Answer:

21

Step-by-step explanation:

Tom'age: a

Jean'age: b

3+a=2(b+3)

a-2+b-2=26

or

a =2b+3

2b+3-2+b-2=26

or

a=2b+3

3b=27

or

a=21

b=9

8 0
4 years ago
Evaluate r s + 14s when r= 6 and s= 1/4
arlik [135]
R S + 14(S)        R=6   S=1/4
(6)(1/4) + 14(1/4)
1.5 + 14(1/4)
1.5 + 3.5
5
7 0
4 years ago
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