Answer:
The formula you'll need is:
Years = ln (total / principal) / rate
ln means natural log
Years = ln (2,000 / 1,000) / .045
Years = ln (2) / .045
Years = 0.69314718056 / .045
Years = 15.4033
Step-by-step explanation:
Factor completely. 9x4 + 12x3 – 45x2 – 60x
2 answers:
Answer: The correct option is
(C)
Step-by-step explanation: We are given to completely factor the following bi quadratic expression :
Since the given expression does not contain the constant term, so we will take out the x-term common and then will try to factorize the remaining cubic expression.
The factorization of expression (i) is as follows :
Thus, the required factored form of the given expression is
Option (C) is CORRECT.
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Answer:
A.The scale factor is 0.25 ⇒ <u>True</u>
B.The scale factor is 4 ⇒ <u>False</u>
Step-by-step explanation:
<u>See the attached figure.</u>
A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.
A dilation that creates a smaller image is called a reduction.
As Shown, two right triangles, The first triangle is dilated to form the second triangle.
We can deduce that the second image is a smaller than the first triangle.
The hypotenuse of the first triangle = 4.4
The hypotenuse of the second triangle = 1.1
So, the scale factor = 1.1/4.4 = 11/44 = 1/4 = 0.25
<u>We will check the options:</u>
A.The scale factor is 0.25 ⇒ True
B.The scale factor is 4 ⇒ False
Let's call <em />the number of pages we <em>have </em>read 
. To find the number of pages we have <em>left</em> to read, we'll need to subtract the number of pages we've read from the total number of pages in the book. Our total page count is 193, and the number of pages we've read is the unknown , so the number of pages we <em />haven't read can be written as 
. With that knowledge, let's construct the rest of our equation.
"He has read three pages more than one-fourth of the number of pages he hasn't yet read." The first key phrase here is "he has read." What this means is that the number of pages he's read, which we've named, is equal to everything in the rest of the sentence. "Thee pages more than" means that we're going to be adding 3 to whatever the next quantity described is, which, in this case, is "one-fourth of the number of pages he hasn't yet read." We already established earlier that "the number of pages he hasn't yet read" is , so one-fourth of that would be 
. Putting everything together, we get the following equation:
To solve for, we might first want to eliminate the fraction 1/4 by multiplying both sides of the equation by 4, obtaining
Solving for m, we get:
Now that we have m, it's a simple matter to solve for:
So, he has not yet read 152 pages.
"He has read three pages more than one-fourth of the number of pages he hasn't yet read." The first key phrase here is "he has read." What this means is that the number of pages he's read, which we've named
To solve for
Solving for m, we get:
Now that we have m, it's a simple matter to solve for
So, he has not yet read 152 pages.