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3 years ago

Please help!! 20 points

Mathematics

1 answer:

dedylja [7]3 years ago

4 0

I believe the cube is 216, the pyramid is 57, the rectangular prism is 1390. :)

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A pot contains 256 256 fluid ounces of soup. How many quarts is that?

ZanzabumX [31]

256 fluid ounces is equal to 8 quarts.

5 0

3 years ago

What is the value of x?

professor190 [17]

In this shape there will be 540 degrees

So 98+98+115+115+x = 540
X= 114

Hope this helps!

8 0

3 years ago

Show that 3x^2 -2x + 1 is always greater than 0.<br> ( This is an Additional Math Question )

Leviafan [203]

Answer:

3x^2 -2x + 1 =3(x^2-2/3x+1/3)=3(x-1/3)^2+2/9*3= 3(x-1/3)^2+2/3

(x-1/3)^2 is greater or equal to zero

3(x-1/3)^2 is greater or equal to zero

and 2/3 is greater than zero

So there sum is greater than zero

Proved

Step-by-step explanation:

3x^2 -2x + 1 =3(x^2-2/3x+1/3)

Consider x^2-2/3x+1/3

Remember that (a-b)^2 =a^2-2ab+b^2

x^2=a^2

a=x

-2/3x= -2*x*b

b=1/3

S0 (x-1/3)^2= x^2-2/3x+1/9

x^2-2/3x+1/3= x^2-2/3x+1/9+1/3-1/9= (x-1/3)^2+2/9

3x^2 -2x + 1 =3(x^2-2/3x+1/3)=3(x-1/3)^2+2/9*3= 3(x-1/3)^2+2/3

(x-1/3)^2 is greater or equal to zero

3(x-1/3)^2 is greater or equal to zero

and 2/3 is greater than zero

So there sum is greater than zero

Proved

6 0

3 years ago

Find the measure of arc RPQ.

timofeeve [1]

Answer: 227 degrees

Step-by-step explanation:

4 0

2 years ago

A few years ago, people tended to have relatively large CD collections. For students at a large university in the midwest, the m

vredina [299]

Complete Question

A few years ago, people tended to have relatively large CD collections. For students at a large university in the midwest, the mean number of CDs owned was 78 with a standard deviation of 90. To confirm these numbers, a random sample of 120 students from this university was collected and the size of their CD collections recorded. These particular 120 students had a mean CD collection size of 80 CDs. What is the numerical value of the sample mean?

Answer:

Sample Mean $\=x=80$