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
lorasvet [3.4K]
3 years ago
12

"a test has 5 multiple choice questions with four choices with one correct answer each. if we just randomly guess on each of the

5 questions, what is the probability that you get at least 1 questions correct?"
Mathematics
1 answer:
diamong [38]3 years ago
3 0
1 out if 20 you would get right

There is 5 questions 4 answers to pick from so 5 times 4 is 20

Then they said what is the probability of only getting one answer right

So the answer would be 1 out of 20 1/20
You might be interested in
MODELING REAL LIFE A baseball is thrown up in the air. The table shows the heights $y$ (in feet) of the baseball after $x$ secon
nikklg [1K]

The equation for the path of the ball can be measured using a regression model calculator which produced the quadratic model ;

  • y(x) = - 16x² + 36x + 4
  • Height at x = 1.7 = 18.89 feets

<u>The table given</u> :

Time, x : __0.5 ___ 1 ____ 1.5 ____ 2

Height, y _ 18 ____22 ___ 24 ____ 12

<u>Using </u><u>technology</u><u> such as a </u><u>quadratic regression</u><u> calculator or </u><u>excel</u> ;

The quadratic regression model obtained is :

  • y(x) = - 16x² + 36x + 4

<u>The </u><u>height after, 1.7 seconds</u><u>, x = 1.7 can be calculated thus</u> :

Put x = 1.7 in the equation :

  • y(1.7) = - 16(1.7)² + 36(1.7) + 4
  • y = 18.89 feets

Therefore, the height of the baseball after 1.7 seconds will be 18.89 feets.

Learn more : brainly.com/question/22939512

5 0
2 years ago
Find the equation of the line through the given pair of points. (-7,-6) and (-4,9)
Softa [21]

Answer:

y=5x+29

Step-by-step explanation:

1. find slope

y2-y1/x2-x1

9--6/-4--7= 15/3=5

2. substitute x and y

(-4, 9)= 9=5(-4)+b

            9=-20+b

             29=b

3. put it together

y=5x+29

6 0
4 years ago
I'm having trouble with unit rates. Please help.
dezoksy [38]

The answer to your question is "C. 4 feet/ 1 second."


When the rate has a quantity of 1, it is a unit rate. So if the rate is 4 feet to 1 second (or four feet per second), it would be considered a unit rate.

5 0
3 years ago
Read 2 more answers
What is 0.9 divide by 2.647
DanielleElmas [232]

Answer:

0.340007556

Step-by-step explanation:

its correct

3 0
3 years ago
Read 2 more answers
Factorise: 6x^3y^2+9x^2y^3-3x^2y^2​
Nezavi [6.7K]

Answer:

\boxed{3x^2y^2 (2x+3y-1)}

Step-by-step explanation:

6x^3y^2+9x^2y^3-3x^2y^2

For the three terms, the common factor is 3x^2y^2, so

6x^3y^2+9x^2y^3-3x^2y^2 = \boxed{3x^2y^2 (2x+3y-1)}

4 0
3 years ago
Other questions:
  • A sale person's daily earnings include $115 per day plus commission equal to x percent (in decimal form) of his daily sales. a.
    14·1 answer
  • Select the factored form of each expression.
    15·2 answers
  • The height of the house is 26 feet. What is the height x of each story?
    12·1 answer
  • Al predicted that he would sell 220 hot dogs at lunch time. When the hot dogs ran out, 35 people were still waiting in line to b
    11·1 answer
  • Combine like terms:8y-3y=
    10·1 answer
  • Please help me I really need it :( (--&gt;WILL MARK BRAINLIEST&lt;-- I ALREADY HAVE THE ANSWER FOR PART A, I JUST NEED PART B AN
    11·1 answer
  • 4/5 of my cake is frosted. My cat licked off 1/7 of the frosting. How much of my frosting is left?
    11·1 answer
  • What is the solution to the equation? x = 1 x = 6 x = 12 x = 24
    6·1 answer
  • What is the approximate area of the construction paper, in square inches after the circles are cut out? Use 3.14 for π
    8·2 answers
  • Help me out i’m failing this class
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!