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3 years ago

Calculate the mean for 31 29 33 37 43 38 33 40

Mathematics

2 answers:

Natasha2012 [34]3 years ago

4 0

Answer:

The mode is 3 in the left and 3 in the right

Step-by-step explanation:

faust18 [17]3 years ago

3 0

Answer:

35.5

Step-by-step explanation:

You have to find the sum of all the numbers, 284, then divide it by 8 which gets you to 35.5.

Hope this helps! :)

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AC is tangent to circle O at point C. What is the length of OC

Sedaia [141]

Let OC is x, so OC=OB=x

${4}^{2} + x^{2} = {(2 + x)}^{2} \\ 16 + {x}^{2} = 4 + 4x + {x}^{2} \\ 12 = 4x \\ x = 3$

Answer: OC=3 points

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3 years ago

Cierra has 3 more than one half as many purses as Aisha. Define a variable and write an expression to represent the number of pu

andreev551 [17]

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3 years ago

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Answer the question in the picture above.

Anvisha [2.4K]

Answer:

m is less than A apparently

Step-by-step explanation:

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2 years ago

I need help with percentages

satela [25.4K]

Answer:

3a. 7.2

3b. 0.9

4a. 7.2

4b. 2.4

5a. 104

5b. 260

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have an awesome day, -TJ

6 0

2 years ago

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Can someone please help me factor this

Dmitry_Shevchenko [17]

Answer:

$\huge\boxed{\bf\:1}$

Step-by-step explanation:

$\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \times \frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }$

Take $\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 }$ & factorise it at first.

$\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \\= \frac{\left(x-3\right)\left(x-1\right)}{\left(x-4\right)\left(x-3\right)}\\= \frac{x-1}{x-4}$

Now factorise the next set : $\frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }$ .

$\frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }\\= \frac{\left(x-4\right)\left(x+6\right)}{\left(x-1\right)\left(x+6\right)}\\= \frac{x-4}{x-1}$

Now, multiply the two simplified results.

$\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \times \frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }\\= \frac{x-1}{x-4}\times \frac{x-4}{x-1} \\= \frac{\left(x-1\right)\left(x-4\right)}{\left(x-4\right)\left(x-1\right)} \\= \boxed{\bf\: 1}$

$\rule{150pt}{2pt}$

7 0

2 years ago