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castortr0y [4]
3 years ago
11

What property is this 5(2+3)=(2+3)5

Mathematics
1 answer:
Nana76 [90]3 years ago
8 0
5(2 + 3) = 5(2 + 3)

10 + 15 = 10 + 15

25 = 25 ✔️
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State the number of possible real zeros and turning points of f(x) = x7 – 6x6 + 8x5. Then determine all of the real zeros by fac
Rudiy27

Answer:

steps below

Step-by-step explanation:

f(x) = x⁷ – 6x⁶ + 8x⁵

f'(x) = 7x⁶ - 36x⁵ + 40x⁴

      = x⁴ (7x² - 36x + 40)   ... (1)

Critical point (x,y): x = 0  ,  x = (36 ± √(-36)²-4*7*40) / (2*7) = (18±2√11) / 7

x = 0   or   x = 3.5    or    x = 1.6

plug into (1): y = 0   ,  y = -394.3  ,    y = 10.1

extreme : <u>maximum (1.6 , 10.1)</u>       <u>minimum (3.5 , -394.3)</u>  ... turning points

x⁷ – 6x⁶ + 8x⁵ = x⁵ (x² - 6x + 8) = x⁵ (x-2) (x-4) =0

<u>real zeros: x = 0,   x=2,    x=4</u>

3 0
3 years ago
There are 15 marbles in a bag: 7 are blue, 6 are white, and 2 are green. If one marble is drawn, what is the probability that it
DIA [1.3K]
40% white
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4 years ago
All 203 students at Polk School eat lunch at the same time. One
Cerrena [4.2K]

Answer:

The number of tables were used that day at lunch is 23 tables.

Step-by-step explanation:

Given as :

The total number of students in the Polk school = 203

On one day the number of students absent = 19

So, The number of student present on that day = Total student - absent students

I.e The number of student present on that day = 203 - 19 = 184

The number of students sit on each table = 8

Let The number of tables were used that day at lunch = n

<u>So, According to question</u>

The number of tables were used that day at lunch = \dfrac{\textrm The number of student present on that day}{\textrm Total number of students sit on each table}

I.e n = \frac{184}{8}

∴ n = 23 tables

So, The number of tables were used that day at lunch = n = 23 tables

Hence, The number of tables were used that day at lunch is 23 tables. Answer

4 0
4 years ago
Helps me solve this problem please
balandron [24]

Answer:

0

Step-by-step explanation:

hope this helps :)

6 0
3 years ago
Please help !! Which of the following are solutions to the equation below? check all that apply
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I thike so i would -4 must help u a lot
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