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liberstina [14]
3 years ago
11

Evaluate the expression when n=6 n² – 5n-2

Mathematics
2 answers:
eduard3 years ago
8 0

Answer:

4

Step-by-step explanation:

(6^2) -5(6) -2 =4

that is the answer

mylen [45]3 years ago
5 0

Step-by-step explanation:

6^2 - 5×6 - 2

= 36 - 30 -2

= 4

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Calculate the mean number of students per class at watch school. Write your answers in sentences that explain what the means rep
Tpy6a [65]
To find the mean you add all the numbers then divide the sum by how many numbers there are :

1)Ford School
   
21+19+20=60

there are 3 numbers in the equation so you divide 60 by 3 :

60÷3=20

the mean for Ford School is 20

2)Carter School

41+36+37=114

there are 3 numbers in the equation so you divide 114 by 3 :

114÷3=38

the mean for Carter School is 38

hope this helps
6 0
3 years ago
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7 0
3 years ago
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Komok [63]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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The graphs below have the same shape. What is the equation of the blue graph?
Anna11 [10]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Oil leaked from a tank at a rate of r(t) liters per hour. the rate decreased as time passed, and values of the rate at two hour
Galina-37 [17]
The given data is
t, h:            0     2     4     6     8   10
r(t), L/h:   8.6  7.9  6.8  6.4  5.7  5.3

The lower and upper estimates for the total amount that leaked may be computed as the Left and Right Riemann sums.

The shape of the graph of r versus will determine which of the two sums yields an upper or lower sum.
The plot of the graph is shown below.

The Left Riemann sum is
Sl = 2*(8.6+7.9+6.8+6.4+5.7) = 70.8 L

The Right Riemann sum is
Sr = 2*(7.9+6.8+6.4+5.7+5.3) = 64.2 L

Answer:
The lower estimate for oil leakage is 64.2 L
The upper estimate for oil leakage is 70.8 L

4 0
3 years ago
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