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3 years ago

The standard deviation assumes a negative value when

Mathematics

1 answer:

rosijanka [135]3 years ago

8 0

... when the universe grows cold. (Or someone made a typesetting mistake.)

Standard deviation is the square root of a non-negative number. It will NEVER be negative.

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Make x the subject of the formula (help again) I'm really bad at these xk-w=y

7nadin3 [17]

Answer:

x = (y+w)/k

Step-by-step explanation:

xk-w=y

Add w to each side

xk-w+w=y+w

xk = y+w

Divide each side by k

xk/k = (y+w)/k

x = (y+w)/k

5 0

3 years ago

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100xyz-75xy factor completely

yarga [219]

the factored form is

-25xy(-4z+3)

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3 years ago

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Talja [164]

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3 years ago

What solid 3D object is produced by rotating the triangle about line m? ANSWER ASAP. TROLL AND LINK ANSWERS REPORTED. WILL AWARD

blagie [28]

Answer:

A cone with diameter 6 units

Step-by-step explanation:

Rotating the triangle about line m will give us a cone with radius 3

If the radius is 3, the diameter is 2*r = 2*3 = 6

5 0

3 years ago

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What is the distance between the points (−7, 1) and (−7, −5) on the coordinate plane?

4vir4ik [10]

Answer:

$\displaystyle d = 6$

General Formulas and Concepts:
Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinate Planes

Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$

Step-by-step explanation:

Step 1: Define

Identify.

Point (-7, 1)

Point (-7, -5)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d.

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(-7 - -7)^2 + (-5 - 1)^2}$
[Order of Operations] Evaluate: $\displaystyle d = 6$

6 0

3 years ago