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jarptica [38.1K]
4 years ago
15

Distribute: x(x) + x(4) – 5(x) – 5(4) = x(x) + x(–3).

Mathematics
2 answers:
Bingel [31]4 years ago
8 0

Answer:

x = 10

Step-by-step explanation:

x(x) + x(4) – 5(x) – 5(4) = x(x) + x(–3)

x² + 4x - 5x -20 = x² - 3x

Collect like terms

x² - x² + 4x -5x +3x -20 = 0

2x = -20

Divide through by 2

X = 10

irinina [24]4 years ago
8 0

Answer:

x=10

Step-by-step explanation:

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Bob and Tom each have a bag of 100 chocolate candies. Bob has 53 left and Tom has
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Answer:

He has 47

Step-by-step explanation:

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Tori, Alaina, Manuel, and Nelish each attempted to plot the point -15 on a number line.
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What number line?:/ This is a unanswered question that you just created
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Ten people at a party decide to compare ages. Five people are 30 years old, three are 32, one is 31, and one is 65.
horrorfan [7]
Given:
Ten People
5 people = 30 years old
3 people = 32 years old
1 person = 31 years old
1 person = 65 years old

We need to arrange the ages in order from least to greatest.

30, 30, 30, 30, 30, 31, 32, 32, 32, 65 
65 is the outlier. 

A.) mean age without the outlier. count of the numbers : 9
5 x 30 =    150
1 x 31 =      31
3 x 32 =<u>      96</u>
total age  277
÷ # of pax<u>    9</u>
mean         30.77 round to the nearest tenth 30.80

b.) Standard deviation:
We need to calculate variance first:
5 pax : 30 - 30.80 = - 0.80 ⇒ -0.80² = 0.64 * 5pax = 3.20
1 pax : 31 - 30.80 =   0.20 ⇒  0.20²  = 0.04 * 1pax = 0.04
3 pax : 32 - 30.80 =   1.20 ⇒  1.20² = 1.44 * 3 pax = 4.32

Variance : (3.20 + 0.04 + 4.32) / 9 pax = 7.56 / 9 = 0.84

Standard deviation is simply the square root of the variance.

Standard deviation = √0.84 = 0.916 

0.916 round to nearest hundredths is 0.92
0.916 round to nearest tenths is 0.90
8 0
3 years ago
Can someone help w/ d plz
asambeis [7]

____________________________________________________

Answer:

\large\boxed{0}

____________________________________________________

Step-by-step explanation:

We are solving the expression: \frac{2*(3+(2-1))}{4-(6+2)} -(3-5)

Solve:

\frac{2*(3+(2-1))}{4-(6+2)} -(3-5)\\\\\text{Lets start with the fraction}\\\\\frac{2*(3+(2-1))}{4-(6+2)} -(3-5)\\\\\frac{2*(3+(1))}{4-(8)} -(3-5)\\\\\frac{2*(4)}{-4} -(3-5)\\\\\frac{8}{-4} -(3-5)\\\\-2 -(3-5)\\\\\text{Distrubute the negative to the numbers inside the parenthesis}\\\\-2 -3+5\\\\-5+5\\\\\boxed{0}

____________________________________________________

3 0
3 years ago
Find f. f ''(x) = −2 + 36x − 12x2, f(0) = 8, f '(0) = 18 f(x) =
rjkz [21]

Answer

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Step-by-step explanation:

8 0
3 years ago
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