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Karo-lina-s [1.5K]
3 years ago
13

3(12-3y^2) Help solve this please

Mathematics
1 answer:
HACTEHA [7]3 years ago
5 0
Step 1. <span>Distribute

</span>3*12+3*-3 y^{2}
<span>
Step 2. Simplify </span>3*12 to 36

36+3*-3 y^{2}

Step 3. Simplify 3*-3 y^{2} to -9 y^{2}

36-9 y^{2}

Done! :)
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Determine the unit rate. Use mental math when you can. 6 golf balls for $15
Lena [83]

Answer:

1 golf ball : $2.50

Step-by-step explanation:

  1. You can first divide 6 and 15 by 3, and get 2 and 5.
  2. Then, you divide 5 by 2, which is 2.5
  3. Therefore, the unit rate is 1 golf ball : $2.50
4 0
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In right triangle ABC, angle C is the right angle. If sin B = 15/17, what is the value of tan A
tamaranim1 [39]

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Use long division to find the quotient below. (2x^3+x2+25)/(2x+5)
Contact [7]

Answer:

x^2               -2x              +5

Step-by-step explanation:

               x^2               -2x              +5

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

2x + 5  /    2x^3      +     x^2       +    0x         + 25

               -(2x^3      +   5x^2)

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

                                    -4x^2       +    0x        

                                  -( -4x^2      -    10x )

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

                                                           10x           + 25

                                                         -(10x            + 25)

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

                                                                                   0

The desired quotient is x^2               -2x              +5

3 0
3 years ago
At Acme Inc., there are 3 more than twice as many salespeople as inventors. If the whole company has 27 employees,
Olenka [21]

Answer:

There are 8 inventors.

Step-by-step explanation:

  • Let 's' be the salesperson
  • Let 'i' be the inventors

Given that there are 3 more than twice as many salespeople as inventors.

  • i.e s = 3+2i

Also given that the whole company has 27 employees.

i.e.

s + i = 27

substituting s = 3+2i

3 + 2i + i= 27

3 + 3i = 27

3i = 27 - 3

3i = 24

divide both sides by 3

i = 8

  • Thus, there are 8 inventors.

<u>VERIFICATION</u>

As the total number of employees is 27.

so the salespeople will be:

s = 3+2i

  = 3 + 2(8)

  = 3 + 16

  = 19

Thus, the total employees are verified as:

s + i = 27

19 + 8 = 27

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Daniella must earn a salary of at least $340,000
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