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3 years ago

27 points help nowwwww

Mathematics

1 answer:

Mama L [17]3 years ago

6 0

L think the answer is - 1315

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A concrete mix is designed to withstand 3000 pounds per square inch (psi) of pressure. The following data represent the strengt

ss7ja [257]

Answer:

Mean = 3640

Mode = 4100

Median = 3830.

Step-by-step explanation:

We are given the following data in the question:

Strength of casts (in psi):

3970,4100,3100,3200,2950,3830,4100,4050,3460

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observation}}{\text{Total number of observations}}$

$\displaystyle\frac{3970+4100+3100+ 3200+ 2950+ 3830+4100+ 4050+ 3460}{9} = \displaystyle\frac{32760} {9} = 3640$

Mode is the entry with most frequency. Thus, for the given sample mode = 4100.

Median

Since n = 9 is odd,

Formula:

$Median = \displaystyle\frac{n+1}{2}th~term$

Data in ascending order:

2950,3100,3200,3460,3830,3970,4050,4100,4100

Median = 5th term = 3830.

7 0

3 years ago

AREA OF A CIRCLE<br> r=3 cm

statuscvo [17]

28.27 is the area bc i had this as an example before lol

5 0

2 years ago

Can someone Help me please

Sonbull [250]

Answer:

Lower quartile= 4

Middle quartile= 6

Upper quartile=8

7 0

2 years ago

N^2 + 36n + c "find the value of c that completes the square"

RSB [31]

For this case we have the following polynomial:

$n ^ 2 + 36n + c$

To find the value of c that completes the square, we use the following equation:

$c = (\frac {b} {2}) ^ 2$

Where,

<em>b: coefficient of the variable of degree 1 </em>

Substituting values we have:

$c = (\frac {36} {2}) ^ 2\\c = (18) ^ 2\\c = 324$

Answer:

the value of c that completes the square is:

$c = 324$

8 0

3 years ago

Guys I really need help! Please answer ASAP!

Korvikt [17]

Answer:

a)Pipeline Plunge (-1,2)

b)Wonder Wheel (2,-4)

c)Big Coaster (-3,1)

d)(-1,-2)

6 0

2 years ago