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
alexdok [17]
3 years ago
6

Johnni guessed on all 8 questions of a multiple-choice quiz. Each question has 4 answer choices. What is the probability that sh

e got exactly 3 questions correct? Round the answer to the nearest thousandth.
A. 0.004
B. 0.208
C. 0.422
D. 0.792
Mathematics
1 answer:
Ne4ueva [31]3 years ago
3 0

Answer: The answer is B. 0.208.

Step-by-step explanation: Just took the test on e2020

You might be interested in
The perimeter of a triangle is 170 feet and the sides are in the ratio of 25:14:12. Find the area of the triangle.
Viktor [21]
Let
x,y, and z the long sides of the triangle 

we know that

x+y+z=170 ft------> equation 1
x/y=25/14----> y=14x/25------> equation 2
y/z=14/12-----> equation 3
x/z=25/12----> z=12x/25------> equation 4

substitute equation 2 and equation 4 in equation 1
x+[14x/25]+[12x/25]=170------> multiply by 25 both sides
25x+14x+12x=4250
51x=4250
x=4250/51
x=250/3
y=14x/25------> y=(250/3)*(14/25)----> y=140/3
z=12y/14-----> (140/3)*12/14----> z=40

Using Heron's formula,
Area of the triangle = √s (s-a) (s-b) (s-c)
where s is the semiperimeter
s=170/2-----> s=85 ft
Area=√85*[85-250/3]*[85-140/3]*[85-40]
Area=9.22*[1.67]*[38.33]*[45]------> Area=26558.21 ft²

the answer is
26558.21 ft²
6 0
3 years ago
List three exampls of a rate
Tamiku [17]

Answer:

Step-by-step explanation:

It is a special type of ratio

EXAMPLE:

12 ounce can of corn costs $.69 the rate would be $.69 for 12 ounces would be .69:12

6 0
3 years ago
What is 40/24 simplified
Kipish [7]
5/3
if you divide both numbers by 8 you will reduce them to their simplest form
8 0
3 years ago
If you are given the graph of a line and it's corresponding equation, you can be sure that the coordinates of every point on tha
Harrizon [31]
The answer is A True
3 0
2 years ago
What is 3515- x = 1396
Afina-wow [57]

Answer:


Step-by-step explanation:

x=2119

6 0
3 years ago
Read 2 more answers
Other questions:
  • Y=x+12 please answer quickly and plus i need 20 characters<br>​
    6·1 answer
  • You can win a new car in a game show if you can put 4 balls in cups in the right order. The cups are lettered A, B, C, and D and
    6·1 answer
  • segment M'N' has endpoints located at M' (−2, 0) and N' (2, 0). It was dilated at a scale factor of 2 from center (2, 0). Which
    8·2 answers
  • Which of the following demonstrates the Distributive Property?
    11·2 answers
  • Please help! Not really good with coordinates.
    10·2 answers
  • What is the value of A when we rewrite<br> (2/3)^x+4 - (2/3)^x as A • (2/3)^x
    8·1 answer
  • Kevin has a ratio of 2 wrong answers to 7 correct answers on his math test. If he got 6 questions wrong, then how many did he an
    11·1 answer
  • Find the measure of angle T. Please help it’s for a test
    6·1 answer
  • Ohio Skate charges a flat fee of $60 for skating parties plus $6 per person. Matteo can spend no more than $126 on his skating p
    13·1 answer
  • Your parents gave you a gift card for your favorite coffee shop. The card was worth $50
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!