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Ne4ueva [31]
3 years ago
11

Can someone help with the questions in the picture with #22 and both parts of part 23

Mathematics
2 answers:
poizon [28]3 years ago
5 0
#22 is Ian. #23.a. is 77%. b. is Yes. c. is 16.
meriva3 years ago
5 0
22. It says the completion percentage is the number of completions divided by the number of passes. You will get a decimal first, then you change it into a percentage by either multiplying it by 100, or moving the decimal point two places to the right.
Tom: 10/22 = 0.45 = 45%
Ian: 9/18 = 0.5 = 50%
Ian has a higher completion percentage.

23. You get 17 out of 22 questions correct.
a) 17/22 = 0.77 = 77%
Your percent is 77.
b) You passed the test because you had 7% above the lowest score to pass.
c) To find the minimum number of correct answers needed to pass the test, replace the correct number of answers with "x" and make it equal to 0.70 because that's what you need to pass.
x/22 = 0.70
x = 15.4
Because you're dealing with a test, so only whole numbers are possible, you need to round that number up, since you can't go down or you will be below the minimum.
15.4 = 16
The minimum number of correct answers you need is 16 (out of 22).
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Karo-lina-s [1.5K]

Answer:

C.The probabilities are equal.  

The above statement is the only TRUE statement.

Step-by-step explanation:

Here, the given number of total possibilities are { 0,1,2,3,4,5,6,7,8,9}

So, number of total outcomes = 10

Let E : Event of spinner landing on 3

and E' : Even of spinner landing on 4

{Probability of Event E}  =  \frac{\textrm{Total number of favorable outcomes}}{\textrm{Toatl outcomes}}

\implies P(E) = \frac{1}{10}

⇒ P( landing on 3 ) = 1/10

and  P(E') = \frac{1}{10}

P( landing on 4 ) = 1/10

Now, the given statements are

A.The probability of landing on 3 is less than  probability of landing on 4.

FALSE, as both the probabilities are equal to 1/10.

B.The probability of landing on 3 is greater than probability of landing on 4.

FALSE, as both have same probabilities.

C.The probabilities are equal.

TRUE, both have same probability = 1/10

D.The probabilities cannot be predicted

FALSE, the probability are predictable.

3 0
3 years ago
Read 2 more answers
What's 8.23+10.9 simplified?
Serggg [28]
It is going to be 18.32
7 0
3 years ago
Simplify the complex fraction. Please show all work!
Olin [163]

Answer:

3(u^2 +u-3)

-------------------

u(u-3)^2

Step-by-step explanation:

u         1

---- + -------

u-3      u

-------------------------

    u-3

  ----------

    3

Get a common denominator for the numerator

u *u         1(u-3)

----      + -------

(u-3)u      u(u-3)

-------------------------

    u-3

  ----------

    3

u *u + (u-3)

-----------

(u-3)u      

-------------------------

    u-3

  ----------

    3

Now use copy dot flip

u *u + (u-3)        3

----------------- * -------------

(u-3)u                 u-3

3(u^2 +u-3)

-------------------

u(u-3)^2

7 0
3 years ago
Q4 Q20.) Give the equation of the exponential function whose graph is shown.
Elodia [21]
Hi again!


I used an online calculator to help me graph each of the functions.

The correct answer is option D

Let me know if you have any questions about the answer!


3 0
3 years ago
A water storage tank has the shape of a cylinder with diameter 14 ft. It is mounted so that the circular cross-sections are vert
Gala2k [10]

Answer:

"85.7%" is the right answer.

Step-by-step explanation:

According to the question,

The total capacity of water tank will be:

⇒ v_1=A\times 14

The total volume of water will be:

⇒ v_2=A\times 12

Now,

The percentage of total capacity will be:

= \frac{100\times v_2}{v_1}

= \frac{v_2}{v_1}\times 100

By putting the values, we get

= \frac{A\times 12}{A\times 14}\times 100

= 85.7%

8 0
2 years ago
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