Answer:

Step-by-step explanation:
The probability of getting one tails is a half.
The probability of getting another tails given you had a tails is:

The probability of getting n tails in general is given by:

So, when we have four tails - our value for n is four.

Answer:
I would say an Oblong.
Step-by-step explanation:
<h3>
Brainliest please</h3>
Answer:
-30 grams
Step-by-step explanation:
-10 x -10 x -10=-30
Answer:
C. 4, D. 2, A. -1
Step-by-step explanation:
On the graph, the points at 0 are 4, 2, and -1.
Answer:
a. The value of the constant k is 21
b. The equation is y = k * x, where k is the proportionality constant, "x" is the number of terraced houses and "y" is the width of a row of identical houses.
Step-by-step explanation:
a.
<em>A proportional relationship satisfies the equation y = k * x, where k is a positive constant and is called a proportionality constant. In this case "x" is the number of terraced houses and "y" is the width of a row of identical houses.
</em>
The data you have is that the width of 5 townhouses are 105 feet. This means that the value of "x" is 5 houses and the value of "y" is 105 feet. By replacing in the equation y = k * x and isolating the constant k, you get:
<em>105=k*5
</em>

<em>k=21
</em>
<u><em>So the value of the constant k is 21.</em></u>
b.
<em>As mentioned, the equation is y = k * x, where k is the proportionality constant, "x" is the number of terraced houses and "y" is the width of a row of identical houses.</em>
This means that just as "x" increases, "y" increases. And that if "x" decreases, "y" will decrease. And this relationship between "x" e "and" will always be the same, determined by the value of the constant "k".