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denpristay [2]
3 years ago
15

Please help. Will mark brainliest! Answer the questions

Mathematics
2 answers:
Colt1911 [192]3 years ago
3 0

Answer:

V= 2596.125 cm squared

SA= 1187.5 cm squared

Nady [450]3 years ago
3 0

Answer:

Step-by-step explanation:

V=xyz\\ \\ V=21.5(11.5)10.5=2596.125cm^3\\ \\ A=2xy+2xz+2yz\\ \\ A=2(xy+xz+yz)\\ \\ A=2(21.5(11.5)+21.5(10.5)+11.5(10.5))\\ \\ A=2(247.5+225.75+120.75)\\ \\ A=2(594)\\ \\ A=1188cm^2

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explain how to use estimation to help find the product of two decimals. give an example with both estimated and actual answer
Marrrta [24]

To find the product of a reasonable estimate of two decimal numbers, round each decimals to the nearest whole number and then perform the multiplication.

For example:

3.2 x 5.7

Estimated answer

3.2 will be rounded down to 3 and 5.7 will be rounded up to 6

⇒ 3 x 6 = 18

Actual Answer

3.2 x 5.7

=18.24

7 0
1 year ago
How do you write 70% as a fraction in simplest form ?
alexdok [17]
70% equals to 70/100 in fraction form.
But, you need to write it in simplest form. so, divide both of them from 10 'cause they both can divide completely by it.
70/100 = 7/10
so, your answer is 7/10
3 0
4 years ago
What is the solution set to log:(4x + 2) + 4 2 5?
Mama L [17]

Answer: (-0.5,00)

number one i think good luck

Step-by-step explanation:

4 0
3 years ago
Which relation is a function?
Papessa [141]
Answer:
The last one is correct.
Step by step:
Each income has ONLY one outcome.
7 0
3 years ago
X+2/x^2+2x-3/x+2/x^2-x
Sergio [31]

Answer:

2x3 - 3x + 4

 ———————

      x2  

Step-by-step explanation:

Step  1  :

                  2

Simplify   ——

                  x2

Rewriting the whole as an Equivalent Fraction :

4.1   Adding a fraction to a whole

Rewrite the whole as a fraction using  x2  as the denominator :

           x             x • x2

    x =  —  =  ——————

            1                 x2  

Let us test ....

  P    Q    P/Q    F(P/Q)     Divisor

     -1       1        -1.00        5.00    

     -1       2        -0.50        5.25    

     -2       1        -2.00        -6.00    

     -4       1        -4.00        -112.00    

     1       1        1.00        3.00    

     1       2        0.50        2.75    

     2       1        2.00        14.00    

     4       1        4.00        120.00    

Polynomial Roots Calculator found no rational roots

Final result :

 2x3 - 3x + 4

 ————————————

      x2    

Processing ends successfully

plz mark me as brainliest :)

3 0
4 years ago
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