1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga nikolaevna [1]
3 years ago
8

Can someone please help me solve 91

Mathematics
2 answers:
sasho [114]3 years ago
8 0
3x^3+7x^2-20x=0  factor out x first

x(3x^2+7x-20)=0

x(3x^2+12x-5x-20)=0

x(3x(x+4)-5(x+4))=0

x(3x-5)(x+4)=0

x={-4, 0, 5/3}
Mashcka [7]3 years ago
5 0
3x^3+7x^2-20x=0\\
x(3x^2+7x-20)=0\\
x(3x^2-5x+12x-20)=0\\
x(x(3x-5)+4(3x-5))=0\\
x(x+4)(3x-5)=0\\
x=0 \vee x=-4 \vee x=\dfrac{5}{3}
You might be interested in
Gemoetry <br> PLEASE HELP!!
olya-2409 [2.1K]

Answer:

Step-by-step explanation:

the triangles are similar because they are proportional. the 3 sides of 2 triangles fall in a particular table.

6 0
3 years ago
Find the measures of 21 and 2
KatRina [158]
Measure 1 would be 59 degrees (180-121)
Measure 2 would be 121 degrees (vertical angle theorem)
6 0
3 years ago
What is the explict formula for the arithmetic sequence -7.5,-9,-10.5,-12
elena-14-01-66 [18.8K]

Answer:

<u>x = -7.5 - 1.5(n−1) </u>

Step-by-step explanation:

the explicit formula for the arithmetic sequence has the form

x = a + d(n−1)

a is the first term and d is the common difference

The given arithmetic sequence is

-7.5,-9,-10.5,-12

The first term is -7.5

d = common difference = -9 - (-7.5) = -1.5

∴ x = -7.5 - 1.5(n−1)

8 0
3 years ago
sandy had 3.8 points in the quiz game. she missed 5 questions losing 1 point each time how many points did she have at the end
telo118 [61]

Answer:

-1.2

Step-by-step explanation:

3.8-5=-1.2

lmk if this is right

hope it helped

8 0
3 years ago
PLS PLS PLS PLSSSSS HELPPPP
ioda

Answer: 14

Step-by-step explanation:

Okay so it asks in all, which means morning distance + afternoon distance

We got the afternoon distance so now we have to find the morning one

it says the afternoon distance (6), is 25% less than the morning distance.

Which means the afternoon distance is 0.75 of the morning distance.

so 0.75x = 6, x = 6/0.75 = 8

Then you add 8 to 6 to get 14

6 0
3 years ago
Other questions:
  • Write an algebraic expression for 91 more than the square of a number
    14·2 answers
  • Anyone who understand this for 16 point s plz
    14·1 answer
  • The graph depicts the growth and costs using of line segment use the midpoint formula to approximate the cost during the year 19
    11·1 answer
  • The distance of my room is 48feet the width is 11 what is the length of my room
    14·1 answer
  • Write an equation in slope-intercept form,<br> (0,1),(2,4)
    11·1 answer
  • 3(x+1)+ 5=2x- 2 <br>i need help with this equation​
    13·2 answers
  • Help please i have 5 mins to do this
    7·1 answer
  • How do you do solve one step inequalities
    11·1 answer
  • Chandler tells Aubrey that the decimal value of − 1 17is not a repeating decimal. Should Aubrey believe him? Explain.
    5·1 answer
  • Whats the vertex of a parabola?<br> Round to the nearest hundredth.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!