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3 years ago

Write linear equation using the points (5,19) and (9,23)

1 answer:

5 0

Find slope
slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
given (
(5,19) and (9,23)
slope=(23-19)/(9-5)=4/4=1

slope=1

equation with point (x1,y1) and slope is m is
y-y1=m(x-x1)
given
(5,19)
y-19=1(x-5)
y-19=x-5
y=x+14

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Thomas has a loan with a nominal interest rate of 6.4624% and an effective interest rate of 6.4715%. Which of the following must

dlinn [17]

Point III is about real interest rate
point I doesn't apply since both nominal and effective ir are calculated by year
let alone the fact that if you look close to those numbers it would probably mean that the loan had 1year and 1 day duration :)

the II answer is the correct one
if the loan is compounded at 6 months you have to add the interest of the first 6 months interest to the total interest to find out the effective interest rate

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4 years ago

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Determine the scale factor of the function f(x)=3/x

svlad2 [7]

A scale factor is a number which scales, or multiplies, some quantity. The ratio of any two corresponding lengths in two similar geometric figures is also called a scale factor.

Given a function
$f(x)=\frac{3}{x}$
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$f(x)=\frac{1}{x}$

The function
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was obtained from the parent function by multiplying the parent function by 3.

Therefore, the scale factor of the function $f(x)=\frac{3}{x}$ is 3.

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4 years ago

M=1/2(d1+d2) (solve for d1)

nekit [7.7K]

Answer:

d1= -d2+M

Step-by-step explanation:

you would multiply d1 and d2 by 1/2, then add negative d2/2 to each side, then divide each side by 2/1.

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3 years ago

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Pilar used five reusable shopping bags on a recent purchase she made at a grocery store. Each bag decreased the amount she spent

almond37 [142]

Answer:

-25 is the correct answer

Step-by-step explanation:

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3 years ago

- If you divide a number by four and then add six, you get eighteen. What is the number?

stiks02 [169]

Answer:

Step-by-step explanation:

Create an equation to represent this, where x is the unknown number.

$\frac{x}{4}$ + 6 = 18

Solve for x, by first subtracting 6 from both sides:

$\frac{x}{4}$ = 12

Multiply each side by 4:

x = 48

So, the number is 48

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3 years ago

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