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
inysia [295]
3 years ago
7

Consider the function f(x) = 3x2 + 7x + 2. What is the value of the discriminant? –17253173 How many x-intercepts does this func

tion have? 0123 What are the number of zeros for this function? zero real number solutionsone real number solutiontwo real number solutions
Mathematics
2 answers:
nata0808 [166]3 years ago
8 0

Answer:

two real number solutions

Step-by-step explanation:

Given is a quadratic funciton

f(x) = 3x^2 + 7x + 2\\

To find discriminant

b^2-4ac = 49-4(3)(2) = 25

Tosolve for x intercepts:

PUt y =0

Then since discriminant is a perfect square, we have two rational roots.

They are

\frac{-7+/- 5}{6} =\frac{-1}{3} ,-2

No of zeroes = no of x intercepts =2

Hence answer is

two real number solutions

myrzilka [38]3 years ago
7 0
What is the value of the discriminant?
 For this case, the discriminant will be given by
 b ^ 2 - 4 * a * c
 Where
 b = 7
 a = 3
 c = 2
 substituting
 b ^ 2 - 4 * a * c = (7) ^ 2 - 4 * (3) * (2) = 25
 Therefore the value of the discriminant is 25.
 How many x-intercepts does this function have?
 It has two intercepts with the x axis and can be found by equaling the function to zero. That is to say,
 3x2 + 7x + 2 = 0
 The results will be the interceptions with x.
 What are the number of zeros for this function?
 The number of zeros for this function is
 two real number solutions
 Because it is a quadratic function.
You might be interested in
URGENT!!!! The area of a rectangular floor is 80 square feet. The length of the floor is 2 feet less than the width of the floor
KatRina [158]

Answer:

The width of the floor is 10 ft.

Step-by-step explanation:

First, you have to form expressions of width and length in terms of w. With the given information :

width = w ft

length = (w - 2) ft

Given that the area of rectange is A = length × width so you have to subtitute the expressions and value into the formula :

A = l × w

80 = (w - 2) × w

w(w - 2) = 80

w² - 2w = 80

w² - 2w - 80 = 0

(w + 8)(w - 10) = 0

w + 8 = 0

w = -8 (rejected)

w - 10 = 0

w = 10

3 0
2 years ago
How do you solve this problem?
finlep [7]
Can you please take a photo again?
8 0
3 years ago
You can draw a quadrilateral with two sets of parallel lines and no right angles?
bonufazy [111]
Yes you can. The quadrilateral that you would get is called parallelogram. It has 2 paris of parallel lines. and 2 pairs of equal angles. one pair is angles that are less than 90 degrees and other one is where 2 angles are greater than 90 degrees each. Therefore there isnt any right angle there and you got yourself quadrilateral. of these 2 parallel lines are of equal lenght than you get something called rhombus.
8 0
3 years ago
An entrepreneur faces many bureaucratic and legal hurdles when starting a new business. The World Bank collects information abou
slamgirl [31]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data :

Rearranged data:

5, 5, 5, 5, 6, 7, 7, 7, 8, 12, 12, 13, 13, 15, 18, 18, 27, 28, 36, 48, 52, 60, 66, 94

Start time for Suriname = 694

Mean = ΣX / n

Mean = (567 + 694) / (24 + 1) = 1261 / 25 = 50.44

B.) median start Time for initial 24 values

0.5(n+1)th term

0.5(25) = 12.5th term

(13 + 13) / 2 = 13

C.) preferred measure of center for the distribution will be the median as it shapes well in the middle of the distribution. The mean is overestimated

d) Compute the quartiles (Q1, Q2, Q3), and find the IQR for these data. Are there outliers in the time to start a business data set? If so, identify and name any outliers.

Using calculator :

Lower quartile Q1 --> 7

Median Q2 --> 13

Upper quartile Q3 --> 42

IQR = (Q3 - Q1) = 42 - 7 = 35

OUTLIER:

Lower bound : Q1 - 1.5(IQR) ; 7 - 1.5(35) = - 45.5

Upper bound : Q3 + 1.5(IQR) = 42 + 1.5(35) = 94.5

Outlier : values below - 45.5 and above 94.5

Hence, Surimanes start time is the only Outlier.

e)

Standard deviation for 24 countries :

Standard deviation = sqrt[Σ(X - mean)^2 / (N - 1)]

Usibg calculator :

Standard deviation for the 24 countries is 23.83

f)

Standard deviation

5 0
2 years ago
What is the measure of the exterior angle?
Nastasia [14]

Answer:

the measure of the exterior angle is 87 degrees.

8 0
2 years ago
Other questions:
  • how so you solve 5x+27=9(x+3)-4x and is this a conditional equation, an identity, or an inconsistent equation
    13·1 answer
  • Find the magnitude of the vector.<br> (-2,-7)
    10·2 answers
  • Which angle corresponds to 1/6 of a circle?
    7·1 answer
  • devon pays $24.95 for her roller skates.After that she pays$3.95 for each visit to the roller rink. What is the greatest number
    13·2 answers
  • Round to the nearest hundredth:<br><br> 0.631666666666667<br><br> 0.574166666666667
    11·2 answers
  • How do I Solve for x: -2(x+3)=-2x-6
    15·1 answer
  • Find f(0) and then find the equation of the given linear function.
    9·1 answer
  • Help ASAP please !!!!!
    12·1 answer
  • 3. If you look at the number of soldiers that died during the battle, which was
    13·1 answer
  • Mr. Smith is 81 years older than his grandson, Victor. In 3 years, Mr. Smith will be four times as old as Victor. How old is Vic
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!