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insens350 [35]
3 years ago
7

True or false? I believe it's false

Mathematics
1 answer:
seropon [69]3 years ago
3 0

That is false. The parabola opens to the right.

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A glass container can hold 216a^3 cubic cm of water. inside the glass container is a metallic cube with a volume of 64b^3 cubic
xz_007 [3.2K]

Answer:

16(3a-2b)(4a^2+3ab+2b)

Step-by-step explanation:

We will be able to fill the glass up to the amount of water possible to hold in the glass, minus the amount in the cube. This means it will be able to hold 216a^3-64b^3=(6a)^3-(4b)^3cubic cm of water.

Using the difference of cubes formula(you can prove this by expanding back out again), we get that (6a^3)-(4b)^3=(6a-4b)((6a)^2+(6a)(4b)+(4b)^2)=(6a-4b)(36a^2+24ab+16b)=8(6a-4b)(4a^2+3ab+2b)=16(3a-2b)(4a^2+3ab+2b)

Therefore, the answer is \boxed{16(3a-2b)(4a^2+3ab+2b)} cubic centimeters and we're done!

6 0
3 years ago
If there are 91 chickens and 1 is gone how many more is there left.
beks73 [17]

Answer:

90 chickens

Step-by-step explanation:

91 chickens are there, subtract 1 chicken there 90 left

91 - 1 = 90

Mark brainliest would be appreciated

7 0
3 years ago
Read 2 more answers
The length of a rectangular piece of land is 92 yards more than three times its width. The perimeter is 760 yards. find its dime
wlad13 [49]

Answer:  Dimensions are  given as below:

Length = 236 yards

width = 144 yards

Step-by-step explanation:

Let the width be x

then length = 92 more than x = 92+x

formula for perimeter of rectangle  = 2 [ length + width]

     therefore

                  760  =    2 [  92+x + x ]

                 760 = 2 ( 92+2x )

                760 = 184 + 4x

            4x = 760 - 184

           4x = 576

             x= \frac{576}{4} =

             x = 144

So width = 144 yards

Length = 144+92 = 236 yards

6 0
3 years ago
Please help!! Someone has to know how to do it!! I really need help!! 8th grade math!!
Lisa [10]

Answer:

Function 1 is 7/3

Function 2 is 4/3

Function 1 has the greater rate of change.

Step-by-step explanation:

To find the rate of change in function 1, subtract the y values and divide it by the difference in x values.

Function 1 has slope 7/3 since -3--10 = -3+10=7 and -3--6=-3+6=3. The slope is 7/3.

Find the slope of function 2 by converting the equation to slope intercept form.

3y-4x=3

3y=3+4x

y=4/3x+1

Function 2 has slope 4/3

Function 1 has the greater rate of change.

8 0
3 years ago
What is the annual interest rate for an account that compounds monthly at a rate of 2.5% ​
leonid [27]

Answer:

Step-by-step explanation:

There are 12 months in a year. So 2.5% times 12 is 30. 30% is your answer.

8 0
3 years ago
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