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2 years ago

10

Identify the symbols used for each of the following: (a) sample standard deviation; (b) population standard deviation; (c) sa

mple variance; (d) population variance

1 answer:

Anvisha [2.4K]2 years ago

5 0

Answer:

HEHE

Step-by-step explanation:

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Convert 8 cubic meters into liters

Anna35 [415]

Answer: 8,000 Liters

Step-by-step explanation:

There are 1,000 liters in 1 cubic meter. So you would just do 8 times 1,000, which is 8,000 liters.

8 0

3 years ago

Read 2 more answers

Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring:

andre [41]

The part of the quadratic formula that dictates whether the function is factorable or not is B. b^2 - 4ac. This determines the number of real, imaginary, negative and positive roots.
In the equation <span>2x^2 + 7x + 3,
we use the quadratic formula
x = -b +- sqrt (b2 -4ac) /2a = -7 +- </span><span>sqrt (49 -24) /4
the answers are x1 =-0.5 and x2 = -3.</span>

4 0

2 years ago

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Answer qn in attachment

leva [86]

Answer:

$\implies \dfrac{ -4x+7}{2(x-2) }$

Step-by-step explanation:

The given expression to us is ,

$\implies \dfrac{\frac{ 3}{x-1} -4 }{ 2 -\frac{2}{x-1}}$

Now take the LCM as ( x - 1 ) and Simplify , we have ,

$\implies \dfrac{\frac{ 3 -4(x-1) }{x-1} }{ \frac{2-2(2x-1)}{x-1}}$

Simplifying further , we get ,

$\implies \dfrac{ -4x+7}{2(x-2) }$

Hence the second option is correct .

4 0

2 years ago

What is the value of xif 5x + 55 = 35?

Anettt [7]

Answer:

-4

Step-by-step explanation:

5 x(-4) = -20

50 - 20 = 35

8 0

3 years ago

2|4x-1|=38 I need to solve this

umka21 [38]

First you have to have the absolute value isolated so the 2 has to be divided. Then set up the two cases and solve.

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3 years ago