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sergey [27]
3 years ago
7

Why might someone choose to use the y-intercept and the slope to graph a line?

Mathematics
1 answer:
ss7ja [257]3 years ago
4 0
Because if you know where the line crosses the y axis (the y intercept) you can plot a point there. Then with slope you can count to your next plotted point. With the 2 points you can now draw your line.
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Paul Havlik promised his grandson Jamie that he would give him $7,100 7 years from today for graduating from high school. Assume
Dominik [7]

Answer:

\large \boxed{\$4100.07}

Step-by-step explanation:

The formula for the future value (FV) of an investment earning compound interest is

FV = PV \left (1 + \frac{r}{n} \right )^{nt}

where

PV = the present value (PV) of the money invested

  r = the annual interest rate expressed as a decimal fraction

  t = the time in years

 n = the number of compounding periods per year

Data:

FV = $7100

  r =  8 % = 0.08

  t = 7 yr

 n = 2

Calculation:

\begin{array}{rcl}\\7100& =& PV \left (1 + \dfrac{0.08}{2} \right )^{2 \times 7}\\\\& =& PV (1 + 0.04)^{14}\\\\& =&PV (1.04)^{14}\\& =& PV(1.731676)\\PV& =& \dfrac{7100}{1.731676}\\\\& =& \mathbf{4100.07}\\\end{array}\\\text{The present value of the money is $\large \boxed{\mathbf{\$4100.07}}$}

4 0
3 years ago
Which of the following coordinates is located in Quadrant I?
oee [108]

Answer:

(4,6)

Step-by-step explanation:

quadrant 1 always has positive coordinates so the only one with all positive coordinates is (4,6)

5 0
3 years ago
Is this equation proportional and how do you know (i need help!!!!)
Cerrena [4.2K]

Answer: you

Step-by-step explanation: look it up

8 0
3 years ago
Read 2 more answers
describe the steps you would take to transform the equation 10x + 2y = 25 into the equation y = -5x + 25/2
saveliy_v [14]
10x + 2y = 25
Then rearrange the equation to get 10x on the same side as 25.

Keep in mind, once bringing to the other side, your constant and variable will switch to a negative or positive for example,
-10x will become +10x. Another example is +20x will become -20x once brought to the other side.

Continuing on once rearranged, your equation will look like,
2y = - 10x + 25

Then we have to get rid of the 2 on 2y so you will have to divide both sides by 2.
\frac{2y}{2} = \frac{ - 10x + 25}{2}
Dividing both sides by 2, you will get,
y = - 5x + \frac{25}{2}
The reason why we don't divide and rather keep the 25/2 (25 divded by 2) is because 25 divided by 2 will give an answer with a decimal and that we don't want a decimal in our equation so we just keep it the way it is. If you ever get a decimal, make sure you keep it in its fraction form.
4 0
3 years ago
rosemary made 4 gallons of fruit punch for a meeting. each small cup is filled with 6 ounces of punch. what is the greatest numb
RUDIKE [14]

85! Because there are 128 oz. in a gallon and there are 4 gallons. 128x4=512 divide 512 by 6 and get 85.333 85 is the greatest amount.

3 0
3 years ago
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