Answer:
<h2>
<em>3</em></h2>
<em>Expl</em><em>anation</em><em>:</em>
<em>![\sqrt[a]{ {x}^{n} } = {x}^{ \frac{n}{a} } \\ \sqrt[7]{ {53}^{3} } = {(53}^{3} ) {}^{ \frac{1}{7} } \\ \: \: \: \: \: \: \: \: \: \: \: = {53}^{ \frac{3}{7} } \\ comparing \: with \: {53}^{ \frac{a}{b} } \\ a = 3](https://tex.z-dn.net/?f=%20%5Csqrt%5Ba%5D%7B%20%7Bx%7D%5E%7Bn%7D%20%7D%20%20%3D%20%20%7Bx%7D%5E%7B%20%5Cfrac%7Bn%7D%7Ba%7D%20%7D%20%20%5C%5C%20%20%5Csqrt%5B7%5D%7B%20%7B53%7D%5E%7B3%7D%20%7D%20%20%3D%20%20%7B%2853%7D%5E%7B3%7D%20%29%20%7B%7D%5E%7B%20%5Cfrac%7B1%7D%7B7%7D%20%7D%20%20%5C%5C%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%3D%20%20%7B53%7D%5E%7B%20%5Cfrac%7B3%7D%7B7%7D%20%7D%20%20%5C%5C%20comparing%20%5C%3A%20with%20%5C%3A%20%20%7B53%7D%5E%7B%20%5Cfrac%7Ba%7D%7Bb%7D%20%7D%20%20%5C%5C%20a%20%3D%203)
</em>
<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>
<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>
Answer:
It is 14.45 percent
.
Step-by-step explanation:
Explanation:
The first day is independent from the day before. Therefore the first day probability (of rain) is 20 percent.
The second day (depends on the previous day) rainfall probability is 85 percent.
Finally, the third day (it must be rainy to satisfy the total probability) rainfall probability is 85 percent.
The probability of having three consecutive days which are rainy:
P(all rainy)
=
0.20
×
0.85
×
0.85
=
0.1445
or 14.45 percent.
<h2>Solving Quadratic Equations with the Quadratic Formula</h2>
<h3>Answer:</h3>
and 
<h3>Step-by-step Explanation: </h3>
Recall:
if we have a quadratic equation, 
, where 
, 
and 
are real numbers and 
, 
.
Given:
Solving for 
:
Solving with the positive value:
Solving with the negative value:
Answer:
63/24
Step-by-step explanation:
First you change the whole 2 to have a fraction of 48/24.
Next you have change 5/8 so its denominator has a 24. So you multiple the 8 by 3 to get 5/24. But then you have to multiply the 5 by 3 also so it is still the same fraction just bigger and you get 15/24. Now add the 15/24 with 48/24 to get 63/24.
Hope this helps!
Answer:
1
Step-by-step explanation:
if it's above 1.5 you would round up but it's not so
