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
gladu [14]
3 years ago
12

What are x-intercepts of the function f(x) = x2 + 4x + 3

Mathematics
1 answer:
adell [148]3 years ago
5 0

Answer:

x-intercept(s): ( -1, 0 ) , ( -3, 0 )

y-intercept(s): ( 0, 3)

You might be interested in
Find the area of each figure to the nearest tenth.
sergey [27]

Answer:

Area of triangle ABC=7 square units

Area of triangle A'B'C'=7 square units

Step-by-step explanation:

Triangle ABC is the preimage of triangle A'B'C' under a reflection in the line x=0.

The two triangles are congruent so they have the same area.

We can calculate the area by counting the unit squares the triangle covered.

Each full box is 1 units square.

Each triangle covered

1 full box and 12 partially covered boxes.

Each partial box covered is 0.5 square units.

Therefore the area is

Area=1+0.5\times12

Area=1+6

Area=7 square units

6 0
3 years ago
Help please!!!!:::_))
sleet_krkn [62]

Answer with Step-by-step explanation:

Independent:Tickets,Shopping list,weight,Hiking,Mushrooms in the bridge,Number of trophies

Dependent:Money,Shopping bas,price of customer's order,snacks,mushroom tarts, shelves on the case

5 0
2 years ago
A test consists of 10 true/false questions. To pass the test a student must answer at least 88 questions correctly. If a student
Zanzabum

Answer:

The probability that the student is going to pass the test is 0.0545

Step-by-step explanation:

The variable that says the number of correct questions follows a Binomial distribution, because there are n identical and independent events with a probability p of success and a probability 1-p of fail. So, the probability of get x questions correct is:

P(x)=\frac{n!}{x!(n-x)!} *p^{x} *(1-p)^{n-x}

Where n is equal to 10 questions and p is the probability of get a correct answers, so p is equal to 1/2

Then, if the student pass the test with at least 8 questions correct, the probability P of that is:

P = P(8) + P(9) + P(10)

P=(\frac{10!}{8!(10-8)!}*0.5^{8}*(0.5)^{10-8})+(\frac{10!}{9!(10-9)!} *0.5^{9} *(0.5)^{10-9})+(\frac{10!}{10!(10-10)!} *0.5^{10} *(0.5)^{10-10})

P = 0.0439 + 0.0097 + 0.0009

P = 0.0545

8 0
3 years ago
Add.<br><br> 5/8+1/5<br><br> Enter your answer as a fraction in simplest form. no guessing ;)
zhenek [66]
First of all we want to find a common denominator so we can add them together.

40 is our Lowest Common Multiple.

5/8 = 25/40
1/5 = 8/40

25/40 + 8/40 = 33/40


6 0
2 years ago
The caller times at a customer service center has an exponential distribution with an average of 10 seconds. Find the probabilit
ololo11 [35]

Answer:

0.9179 = 91.79% probability that a randomly selected call time will be less than 25 seconds

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

The probability of finding a value higher than x is:

P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}

In this question:

m = 10, \mu = \frac{1}{10} = 0.1

Find the probability that a randomly selected call time will be less than 25 seconds?

P(X \leq x) = 1 - e^{-\mu x}

P(X \leq 25) = 1 - e^{-0.1*25} = 0.9179

0.9179 = 91.79% probability that a randomly selected call time will be less than 25 seconds

4 0
2 years ago
Other questions:
  • The diagonals of a rhombus are 8 and 10 . the area of the rhombus is<br> 20<br> 40<br> 80
    7·2 answers
  • Danielle plotted 3 points from the equation y = 4x on this coordinate grid. She drew a straight line through the points. Which o
    5·2 answers
  • Can Anyone Help me with my math work?
    15·2 answers
  • Mary has 1/4 of a tank of gas.A quarter or a tank is equal to 5 gallons how many gallons does her tank hold
    7·1 answer
  • The table below shows the number of restaurants advertisement in a city directory.
    11·1 answer
  • PLEASE HELP ME!
    6·1 answer
  • What is the runner’s average rate of change between the hours: 0.5 and 2? mph 1.5 and 2.5? mph Average Rate of Change
    8·1 answer
  • What is 8.1 divided by ( -0.9 ) ?
    10·2 answers
  • Find the unit rate <br><br> $28 for 7 people
    13·2 answers
  • Create a number line. Plot the following numbers on the number line: 5, -10, 20, -5, 0, 10, -20
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!