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ivann1987 [24]
3 years ago
15

Cole rolls a number cube multiple times and records the data in the table above. At the end of the experiment, he counts that he

has rolled 190 fours. Find the experimental probability of rolling a four, based on Cole’s experiment. Round the answer to the nearest thousandth.
Mathematics
2 answers:
Zigmanuir [339]3 years ago
8 0
<span>Experimental Probability is the ratio of the number of times an event occurs to the total number of trials.

Given that </span><span>Cole rolls a number cube multiple times and records the data in the table below. At the end of the experiment, he counts that he has rolled 190 fours.

From the table, we see that the total number of trials is 1,000 and there are 190 fours.

Therefore, the experimental probability of rolling a four, based on Cole’s experiment is given by 190 / 1,000 = 0.19 = 0.190 to the nearest thousandth.</span>
slava [35]3 years ago
6 0

Answer:

B. 0.190

I took a quiz, thats how I know that B is the answer, since the question doesn't say that 0.190 is B.  

Hope I helped!

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What multiplies to 16 but adds to -8
Sonbull [250]
Answer= -4 & -4

The first step of this would be to write all the factor pairs of 16

(1,16)(2,8)(4,4)(-1,-16)(-2,-8)(-4,-4)

Of these, only one pair has a sum of -8. The (-4,-4) pair. So the answer is -4&-4
4 0
4 years ago
Erin planted t tomato plants. Leo planted 5 fewer tomato plants than Erin. Filipe planted 10 fewer tomato plants than Erin. Drag
Setler [38]

<u><em>Answer:</em></u>

Total number of plants = 3t - 15 = 3(t-5) tomato plants

<u><em>Explanation:</em></u>

<u>We are given that:</u>

Erin planted t tomato plants

Leo planted 5 fewer tomato plants than Erin, <u>this means that:</u>

Leo planted = t - 5 tomato plants

Fillip planted 10 fewer tomato plants than Erin, <u>this means that:</u>

Fillip planted = t - 10 tomato plants

Now, we want to find the total number of tomato plants

<u>This means that</u> we will add the number of plants planted by Erin, Leo and Fillip

<u>Therefore:</u>

Total number of plants = t + t - 5 + t - 10

Total number of plants = 3t - 15 = 3(t-5) tomato plants

Hope this helps :)

7 0
3 years ago
Henry paid 3.50 to download 5 songs what is the unit rate
quester [9]

Answer:

0.70

Step-by-step explanation:

3.50/5 = 0.70

4 0
3 years ago
Which ordered pair is a solution of the equation 2x − y = 9?
gladu [14]

The correct answer is:    [C]:    " (5, 1) ".

__________________

Explanation:

__________________

Choice:  [C]:  " x = 5 " ;  " y = 1 " ;

Note:  Given the equation:  " 2x - y = 9 " .

  → Plug in " 5 " for "x" , and " 1  for " y " ;

to get:   " [2 * 5]  -  [1]   =   10  -  1  =  " 9 " ;  and:  " 9  =  9 " .

So,  Choice:  [C]:  " (5, 1) "  — is the CORRECT ANSWER.

__________________

Let us consider the "other answer choices" ; as follows:

__________________

Choice:  [A]:  "x = - 4 " , "y = 1" ;  Plug in these values for the given equation:

→  " 2x - y = 9 " ;

→  " (2 * -4) - (5) = - 8 - 5 =  " - 13 "  ;  and:  " - 13 ≠ 9 " .

→  So:  Answer choice:  [A]:  is INCORRECT.

__________________

Choice [B]:  "x = -2" , "y = 5" ;  Plug in these values for the given equation:

  "2x - y = 9 " ;

→  " (2 * -2) - (5) = -4 - 5 = -9 ;  and:  " -9 ≠ 9 " .

→  So:  Answer choice:  [B]:  is INCORRECT.

__________________

Choice:  [D]:  "x = 6 " , "y = - 3" ;  Plug in these values for the given equation:

  "2x - y = 9 " ;

→  " (2 * 6) - ( -3) =  12 - (-3)  =  12 + 3  = " 15 " ;  and:  " 15 ≠ 9 " .

→  So:  Answer choice:  [D]:  is INCORRECT.

__________________

     →  The correct answer is:    [C]:    " (5, 1) " .

__________________

6 0
4 years ago
Read 2 more answers
Desperately seeking answer. Please if you don’t know don’t just comment.
Reptile [31]

Recall the cosine rule

b^2=a^2+c^2-2ac \cos B


This can be rearranged for cos B

\cos B = \frac{a^2+c^2-b^2}{2ac}


so B = \cos^{-1}(\frac{90^2+50^2-55^2}{2 \times 90 \times 50})


(I haven't worked out the number but you just put that into a calculator)

8 0
4 years ago
Read 2 more answers
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