3 years ago

For questions 6-9 fill in the missing values on the doubled number line

Mathematics

1 answer:

Luda [366]3 years ago

3 0

Answer:

Step-by-step explanation:

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If f(x)= -3x + 1, then f^-1(x)=

UNO [17]

Answer:

f^-1(x) = (x-1)/-3

Step-by-step explanation:

Invert equation:

Describe X in original function:

multiplied by -3

add 1

Reverse order:

subtract 1

divide by -3

8 0

3 years ago

Find the sum of series 4/(4n-3) (4n+1)

ANTONII [103]

$\dfrac4{(4n-3)(4n+1)}=\dfrac1{4n-3}-\dfrac1{4n-1}$

Assuming the sum starts at $n=1$ , the $N$ th partial sum is

$\displaystyle\sum_{n=1}^N\left(\frac1{4n-3}-\frac1{4n-1}\right)=\left(1-\frac15\right)+\left(\frac15-\frac19\right)+\cdots+\left(\frac1{4N-7}-\frac1{4N-3}\right)+\left(\frac1{4N-3}-\frac1{4N+1}\right)$
$\displaystyle\sum_{n=1}^N\left(\frac1{4n-3}-\frac1{4n-1}\right)=1-\frac1{4N-1}$

As $N\to\infty$ , you're left with simply 1.

8 0

3 years ago

1.what is the slope of the line through the points (2 0) and (0 8) m=_?_

boyakko [2]

Here's my work shown for question 1 and 2

4 0

4 years ago

Please help :) also please don’t take advantage of the points.

Gnoma [55]

Answer:

C. 50

Step-by-step explanation:

180 - (70 + 60)

180 - 130

50, so C

<em>Hope that helps!</em>

<em>-Sabrina</em>

6 0

3 years ago

A total of $98,000 is to be invested, some in bonds and some in certificates of deposit (CDs). If the amount invested in bonds

mamaluj [8]

B= 2000 + CD
98000 = B + CD
substitute b in
98000 = 2000 + CD + CD
add variables
98000 = 2000 + 2CD
subtract 2000 from each side
96000 = 2CD
divide each side by 2
48000 = CD

7 0

3 years ago