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Oliga [24]
3 years ago
14

Evaluate -3x³-4x for x=-1​

Mathematics
2 answers:
anyanavicka [17]3 years ago
4 0

Answer:

7

Step-by-step explanation:

Sub -1 in for each x:

-3x³-4x

-3(-1)³-4(-1)

-3(-1)+4

3+4

7

murzikaleks [220]3 years ago
3 0
The answer is to your question is 7
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HELPP PLEASEEE
MrRa [10]

Answer: The answer to your question is 6\sqrt{3}

Step-by-step explanation:

To solve this problem we will use proportions. We will compare the largest right triangle and the medium size triangle.

                          Medium triangle                     Large triangle

hypotenuse                 y                                            9 + 3

adjacent size               9                                               y

- Write the proportions

                                  y/9 = (9 + 3)/y

-Solve for y

                                  y² = 9(12)

                                  y² = 108

                                  y =   \sqrt{180}

-Find the prime factors of 108

                                  108  2

54 2

                                     27 3

                                      9  3

                                      3   3

                                       1

then,       108 = 2² 3³

-Expressthe root as fractional exponents

                                  2²/² 3²/² 3¹/²

-Simplification

                                   2(3)(3)¹/²

-Result

                                      6\sqrt{3}

8 0
3 years ago
Concert marketing: The college’s performing arts center wanted to investigate why ticket sales for the upcoming season significa
matrenka [14]

Answer:

Correct options are A,B,D:

  • The sample needs to be random, but we don't know if it is.
  • The actual count of community residents who received the concert brochure by mail is too small.  
  • n(1 minus p‐hat) is not greater than 10.

Step-by-step explanation:

Concert marketing: The college’s performing arts center wanted to investigate why ticket sales for the upcoming season significantly decreased from last year’s sales. The marketing staff collected data from a survey of community residents. Out of the 110 people surveyed, only 7 received the concert brochure in the mail.

4 0
3 years ago
So in the thing p=m/v to find m would you times v by p?
EastWind [94]

M = mass

p = density

v = volume

Yes, to find m it would be m = pv.

To find v that would be m/p.

8 0
3 years ago
What is the value of x in the triangle?
yulyashka [42]
<h3>Answer: C) x = 13</h3>

====================================================

Work Shown:

We have a right triangle with legs a = 5 and b = 12. The hypotenuse is c = x which is unknown for now.

Use the pythagorean theorem to find x.

a^2 + b^2 = c^2

5^2 + 12^2 = x^2

25 + 144 = x^2

169 = x^2

x^2 = 169

x = sqrt(169)  .... apply the square root to both sides

x = 13

4 0
3 years ago
Dante wants to place a border around the flowers in his yard. The area he wants bordered is 24 square feet. What is the least am
zloy xaker [14]
<h2>6 ft <u>or 4ft bc 6x4is 24</u></h2>
5 0
3 years ago
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