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3 years ago

The expression 0.00222 x 10^n is greater than 2 (and n is an integer). what is the smallest possible value for n

1 answer:

8 0

The smallest value for n is -3
When you move the decimal point to the right, the exponent on the 10 will be negative
move the decimal point to the right 3 times and you get 2.22 x 10^-3
2.22 is greater than two

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Point B has coordinates (1,2). The x-coordinate of point A is -8. The distance between point A and point B is 15 units. What

Xelga [282]

Answer:

The possible coordinates of point A are $A_{1} (x,y) = (-8, 14)$ and $A_{2} (x,y) = (-8, -10)$ , respectively.

Step-by-step explanation:

From Analytical Geometry, we have the Equation of the Distance of a Line Segment between two points:

$l_{AB} = \sqrt{(x_{B}-x_{A})^{2} + (y_{B}-y_{A})^{2}}$ (1)

Where:

$l_{AB}$ - Length of the line segment AB.

$x_{A}, x_{B}$ - x-coordinates of points A and B.

$y_{A}, y_{B}$ - y-coordinates of points A and B.

If we know that $l_{AB} = 15$ , $x_{A} = -8$ , $x_{B} = 1$ and $y_{B} = 2$ , then the possible coordinates of point A is:

$\sqrt{(1+8)^{2}+(2-y_{A})^{2}} = 15$

$81 + (2-y_{A})^{2} = 225$

$(2-y_{A})^{2} = 144$

$2-y_{A} = \pm 12$

There are two possible solutions:

1) $2-y_{A} = -12$

$y_{A} = 14$

2) $2 - y_{A} = 12$

$y_{A} = -10$

The possible coordinates of point A are $A_{1} (x,y) = (-8, 14)$ and $A_{2} (x,y) = (-8, -10)$ , respectively.

8 0

3 years ago

Michael bought 0.65 kilograms of cubed stake. The meat costs $8.50 a kilogram. How much did Michael pay for the stake

Temka [501]

Answer:

Approximately $5.53

Step-by-step explanation:

You need to multiply the cost of meat per kilogram by the amount you you buy in kilograms.

$8.50*0.65= $5.525

That rounds to $5.53

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3 years ago

If a number is an element of the set of real

kvasek [131]

Answer:

Option (A)

Step-by-step explanation:

A set of real numbers is a combination of both rational and irrational numbers.

But the elements in the sets of rational and irrational numbers will be different.

In short, rational and irrational number sets are the two subsets of real numbers.

Hence, the number is an element of either the set of rational numbers or the set of irrational numbers.

Option (A) is the correct option.

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3 years ago

PLEASE HELPPP<br>Which one is equivalent??

Yuliya22 [10]

Answer:

the answer is A AND WE LOVE BILLIE

Step-by-step explanation:

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3 years ago

-6 4/9 -3 2/9 -8 2/9<br> -

Zinaida [17]

Answer:

-17.8884

Step-by-step explanation:

- 6.444 - 3.2222 - 8.2222 = -17.8884

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3 years ago

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