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ELEN [110]
3 years ago
15

A number cube is labeled 1 to 6. Rachel will roll the number cube 500 times and record her results. About how many times could R

achel expect to roll an even number?
A.125
B. 100
C.375
D.250
Mathematics
1 answer:
rosijanka [135]3 years ago
7 0

Answer:

250

Step-by-step explanation:

there is 3 odds and 3 evens

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What is the answer for 6a + 5a = -11
gayaneshka [121]
A= -1
You add the 6a and 5a.
Your equation is then 11a= -11
At this point you divide each side by 11 to get "a" by itself.
7 0
3 years ago
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Suppose you know that ∠S and ∠Y are complementary, and that m∠S = 4(m∠Y) − 210°. Find m∠Y.
EleoNora [17]

Answer:

angle Y= 60 degrees

Step-by-step explanation:

angle S + angle Y = 90 degrees because they are complementary

Y = 90 - S

angle S = 4(Y)-210

substitute for Y

S = 4(90 - S) - 210

S = 360 - 4S - 210

reduce

5S = 150

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4 0
3 years ago
K=1; f(x)=4x^3-2x^2+2x+4; Lower bound?
photoshop1234 [79]
Given:
f(x) = 4x^{3} - 2x^{2} + 2x + 4
and,
K = 1

We would require to do the synthetic division of the above problem in order to know whether K=1 is a lower bound or not. Let's do it!

Steps of Synthetic Division:

1. Write the coefficients of the equation, and before that write 1. Like,

1 ║ 4   -2   2   4

As you can see, the coefficients of the equation are seperated by ║.

2. Drop down the first value after ║as it is. Like:
1 ║ 4   -2   2   4
        :
----------------------
       4

3. Multiply 4 with 1 and then  place the resultant value under -2 and then add that resultant value with -2. Like
1 ║ 4   -2   2   4
        :    4
----------------------
       4   2

4. Repeat Step 3 until you're done.

1 ║ 4   -2   2   4
        :    4   2   
----------------------
       4   2    4   

1 ║ 4   -2   2   4
        :    4   2   4
----------------------
       4   2    4   8


Now every value, +4, +2, +4, +8, under the bar(---------) is positive; therefore, it means that K=1 is the upper bound, NOT lower bound.

Ans: K=1 is NOT a lower bound.
-i
4 0
3 years ago
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borishaifa [10]
Sin125, on the unit circle, should be positive(not negative), since it should be in quadrant two if the angle 125 degrees is in standard position.
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Area of a cube=6(side)²
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