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IRINA_888 [86]
4 years ago
9

Evaluate the expression below for the given values.

Mathematics
1 answer:
dangina [55]4 years ago
3 0
6 - -3.
6 + 3.

Answer is 9.
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Why is the sum of three consecutive even integers always a multiple of 3
PolarNik [594]

Answer:

Three consecutive even integers can be represented by x, x+2, x+4. The sum is 3x+6, which is equal to 108. Thus, 3x+6 = 108.

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3 years ago
What is 48 divided by 5/12
sertanlavr [38]
48/(5/12)=48/0.416=115.385
8 0
4 years ago
Read 2 more answers
Harvey walks 45 feet in 8.5 seconds. What is Harvey's rate in feet per<br> second?
lilavasa [31]

The answer is : 5.29411764706

The answer when rounded:  5.29 or 5.3

I found the answer by simply dividing 45/8.5 - Remember that per means division!

6 0
3 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
mario62 [17]

Question: Evaluate the expression for the given value of the variable. | − 4b − 8 | + ∣ − 1 − b² | + 2b³; b = − 2

Answer:

-11

Step-by-step explanation:

What we are required to do here is to find the value of the expression assuming that variable b = -2.

Bear in mind that, where you see the symbol "| ... |", enclosing a set of terms, the absolute value after performing whatever function with the enclosed terms is what is to be found. This means, after performing the operation, if you have a negative value, simply ignore the negative sign.

Now let's evaluate at b = -2

|- 4b - 8| + ∣-1 - b²| + 2b³ (given)

|- 4(-2) - 8| + ∣-1 - (-2)²| + 2(-2)³ (substitution)

|8 - 8| + ∣-1 - 4| + 2(-8)

|0| + ∣-5| - 16

0 + 5 - 16 (absolute value of -5 = 5)

= -11

3 0
3 years ago
Evaluate 12sigma n=3 20(0.5)^n-1
seropon [69]
For the same reasons as the last problem...

s(n)=20(1-(1/2)^n)/(1-1/2)

s(n)=40(1-(1/2)^n)

But this time we are not starting at one so we must subtract the sum of s(2) from the sum of s(12) so:

40((1-(1/2)^12-(1-(1/2)^2)

40(0.249755859375)

≈9.99  (to nearest one-thousandth)
5 0
4 years ago
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