Answer:
67.3 x 10^-9
Step-by-step explanation:
<u><em>Answer:</em></u>
You should multiply the expression by 
<u><em>Explanation:</em></u>
To rationalize any expression, you must multiply it by its conjugate. A conjugate is defined as a similar expression to the original one but with an opposite sign
<u>This means that:</u>
The conjugate of a + b would be a - b
Now, the given expression is 
<u>Consider the denominator:</u>
From the above, we can conclude that the conjugate of
is 
<u>And, remember that</u> we need to keep the value of the expression unchanged. This means that we must multiply both the numerator and the denominator by the same value
<u>Therefore:</u>
You should multiply the expression by
in order to rationalize the denominator
Hope this helps :)
Answer:
z = 70
Step-by-step explanation:
Explanation: To solve this proportion for z, we can use cross products.
When we get the equation 5z = 350, we can get z by itself on the left side of the equation by dividing both sides of the equation by 5. On the left, the 5's cancel each other out and we have z. On the right, 350 divided by 5 simplifies to 70 so we have z = 70.
Answer:
2nd Choice
Step-by-step explanation:
1 week, according to the graph on 1 x axis (weeks) the y axis (tests taken) reaches 10
Answer:
x = 4
Step-by-step explanation:
RST is a 30 60 90 right triangle
Ration of short leg : long leg : hypo. = a : a√3 : 2a
Given long leg = 2√3 so short leg = 2 and hypo = 2 * 2 = 4
RT = 4
Triangle RQT is a isosceles 45 45 90 right triangle
So RT = RQ = 4
Answer
x = 4