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r-ruslan [8.4K]
3 years ago
6

Help help help help!!!!!

Mathematics
1 answer:
Dovator [93]3 years ago
6 0

Answer:

9 1/3

Step-by-step explanation:

As you may know, when you divide a positive number by a negative number, the quotient (result of the division) is negative.

Knowing this, all you have to do is divide the numbers normally as positive numbers and then add a negative sign at the end.

To divide fractions, you change the sign to multiplication and multiply the first number by the reciprocal of the second number.

The reciprocal is just the "flipped" version of a fraction.

For example, the reciprocal of 3/4 would be 4/3.

In this problem, you can't reduce.

So, just multiply the top numbers and do the same with the bottom numbers.

That would be \frac{35*4}{5*3}.

35*4=140 and 5*3=15.

The fraction would be 140/15

You can divide 140 by 15, which would be 9 and 1/3

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A rectangular tank measures 30 cm by 20 cm by 40 cm. How many milliliters of water are in the tank when it is full? How many lit
mario62 [17]

Answer:

24000 cm³ or 24 L

Step-by-step explanation:

The measure of a tank is 30 cm by 20 cm by 40 cm.

We need to find the volume of water in the tank when it is full.

Volum = 30 cm × 20 cm × 40 cm

= 24000 cm³

1 cm³ = 1 ml

24000 cm³ = 24000 mL

Also, 1 cm³ = 0.001 ml

24000 cm³ = 24 L

Hence, this is the required solution.

4 0
3 years ago
A store sells notebooks for $3 each and does not charge sales tax. If x represents the number of notebooks Adele buys and y repr
Evgen [1.6K]

Answer:

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3 0
3 years ago
Read 2 more answers
42+30=[BLANK](7+5)<br> 20 POINTS!!
qaws [65]

Answer:

42+30=72

7+5=12

72-12=60

Blank=60

Step-by-step explanation:

4 0
3 years ago
Factor f(x) = 4x2 + 11x? - 104x + 105 into linear factors given that – 7 is a zero of f(x).
ioda

Answer:

f(x) = 4x + 11x2 - 104x + 105  =  (x - 3)(x + 7)(4x - 5)

Step-by-step explanation:

f(x) = 4x^3 + 11x2 - 104x + 105

has the coefficients {4, 11 -104, 105}.  We perform synthetic division using the given -7 as divisor:

-7   /   4      11     -104     105

                -28     119     -105

     -----------------------------------

          4      -17      15         0

Since the remainder is zero (0), we have shown that -7 is a zero of f(x).  The coefficients of the quotient (above) are {4, -17, 15}.  Let's try factoring the corresponding polynomial again using synthetic division.  Start out by using 5 as divisor and determining whether or not the remaindeer is zero:

5    /     4     -17      15

                    20     15

     -------------------------

             4        3     30           No, the remainder is 30 and so 5 is not a

                                               root of this quadratic.  Try the divisor 3 instead:

3     /     4      -17      15

                      12      -15

      ---------------------------

             4       -5        0        Yes, the remainder is 0 and so 3 is a root.

Thus, the given f(x) = 4x + 11x2 - 104x + 105 factors as follows:

f(x) = 4x + 11x2 - 104x + 105  =  (x - 3)(x + 7)(4x - 5).  Notice that the coefficients of the last factor come from those we found above when using 3 as a divisor in synthetic division.  

8 0
3 years ago
Bens shape covered 20 square centermiters what would be the shapes total area if another 10 square centermiters were added
Nookie1986 [14]
10+20 =30 so the answer is 30 square centimeters
5 0
3 years ago
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