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
Serga [27]
3 years ago
7

13. Find a cubic function with the given zeros. 7, -3, 2

Mathematics
1 answer:
emmainna [20.7K]3 years ago
5 0

\bf \begin{cases} x=7\implies &x-7=0\\ x=-3\implies &x+3=0\\ x=2\implies &x-2=0 \end{cases}~\hspace{7em}(x-7)(x+3)(x-2)=\stackrel{y}{0} \\\\\\ (x^2-4x-21)(x-2)=y \\\\\\ x^3-4x^2-21x-2x^2+8x+42=y\implies x^3-6x^2-13x+42=y

You might be interested in
QUADRATIC EQUATION â€" WORD PROBLEMS
dusya [7]

Answer: -7, 12

Step-by-step explanation:

a+b = 5

a*b = -84

a = 5-b

(5-b)*b = -84

-b^2 + 5b + 84 = 0

(-b - 7)(b + 12) = 0

The roots are -7 and 12.

I'm not sure what â€" stands for

4 0
3 years ago
What are these answers
melisa1 [442]

Answer:

answers

Step-by-step explanation:

3 0
3 years ago
Your start-up business is looking into the energy usage in the community of south lawndale. your sample size is 12 months. use t
Aleonysh [2.5K]

The confidence interval at 95% level is

7106.87 <  μ< 14255.27

<h3>What is meant be mean and standard deviation?</h3>

The ratio of sum of observations to the total number of observation is known as mean. It is one of the central tendency in the statistics. It gives an idea about the central value present in the data. The most sensitive measure of central tendency is mean. It is very easy to calculate. Mean playa a crucial role in daily life. The two types of means are Arithmetic mean and Geometric mean.

Standard deviation is a measure in the statistics. The amount of variation of a set of values is known as standard deviation. Standard deviation is denoted by σ.

As per given data

90% confident level for amount of electricity used in community of Austin is

X-tx/2(n-1)s/√n < μ < X+ tx/2(n-1)s/√n

Here , n=12 ,  X=10681.07 , s=6893.87

Margin of error = tx/2(n-1)s/√n

=(1.796×6893.87)/√12

=3574.1996

=3574.19(approximately)

Therefore, 90% CI is,

10681.07-3574.19 ≤ μ<10681.07+3574.19

7106.87 <  μ< 14255.27

To know more about mean and standard deviation, visit:

brainly.com/question/14720855

#SPJ4

5 0
1 year ago
NEED HELPPP, ALL MY POINTS
fgiga [73]

Answer:

see step by step

Step-by-step explanation:

sqrt 49

sqrt 64

sqrt 81

sqrt 100

perfect squares are always rational numbers because when solving any of these square roots they make whole numbers.

8 0
3 years ago
Suppose you multiply a whole number greater than one by the fraction 3/5. will the product be greater than less than or equal to
Damm [24]
Ittttts obviously be greater than   3/5 
 5 * 3/5 to get 3!!
5 0
3 years ago
Other questions:
  • PLZZZZ HELP GIVE ALL POINTS I HAVE
    13·2 answers
  • What could x be substituted for x 6x + -4 = 2x + 8
    10·1 answer
  • Find the equation of the line in slope intercept for that is perpendicular to y=6x-1 and passes through the point (-6,18)
    10·1 answer
  • Why do we choose -2, -1, 0 , 1, 2 for the x values?
    15·1 answer
  • Jeremy uses the linear function G = 12h + 50 to represent the grade, G (in points out of 100), that he can earn on an exam as a
    14·1 answer
  • Match a standard form equation with the graph below.
    11·1 answer
  • You are painting the walls and ceiling of a rectangular 20 x 30 ft room. The walls are 10 feet tall. You need two coats of paint
    10·1 answer
  • Look at the flag of Sweden below, then answer the question based on the appearance of the lines on the flag.
    9·2 answers
  • The length of a rectangle is 7cm longer than its width. Find the dimensions of the rectangle that make the area of the rectangle
    10·1 answer
  • What number can I put in the denominator?<br> 1<br> 8<br> 7
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!