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3 years ago

12

What is the equation of the line, in slope-intercept form, that passes through the point (4, -1) and is perpendicular to the lin

e whose equation is 2x - y - 7 = 0?
A.Y=1/2x+1
B.Y-1/2x-1
C. Y=2x+1

1 answer:

IgorLugansk [536]3 years ago

3 0

I am going with C. B is definitely not the answer

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The amount of time (t) in minutes it takes Jeff to mow an average sized yard is related to (n) the number of yards he mows. The

Sveta_85 [38]

Answer:

Jeff mows 9 yards of lawn in 30 minutes

Step-by-step explanation:

The equation that models the amount of time (t) in minutes it takes Jeff to mow an average sized yard is $t=2n+12$ , where n is the number of yards he mows.

To find the number of yards Jeff mows in 30 minutes, we set the equation to 30 and solve for n.

$\implies 2n+12=30$

Add -12 to both sides:

$\implies 2n=30-12$

$\implies 2n=18$

Divide both sides by 2

$\implies \frac{2n}{2}=\frac{18}{2}$

$\implies n=9$

Hence Jeff mows 9 yards of lawn in 30 minutes.

4 0

3 years ago

In the exponential growth function y = 235(1.15)^x, what is the

sweet-ann [11.9K]

Answer: Growth factor will be 0.15 and percent increase will be 15%.

Step-by-step explanation:

Since we have given that

the exponential growth function

$y=235(1.15)^x$

1) We need to find the growth factor :

As we know the formula for "Compound Interest ":

$A=P(1+\frac{r}{100})^x$

If we compare the formula with our given equation, we get

$1+\frac{r}{100}=1.15\\\\\frac{r}{100}=1.15-1\\\\\frac{r}{100}=0.15\\\\r=0.15\times 100\\\\r=15$

So, the growth factor is at the rate of 0.15.

2) Percent increase will be

$0.15=\frac{15}{100}\times 100\\\\=15\%$

Hence, growth factor will be 0.15 and percent increase will be 15%.

3 0

3 years ago

How to solve 2 * -3 to the third power

lisabon 2012 [21]

Answer:

-54

Step-by-step explanation:

2*-3^3 is the same as 2*-3*-3*-3

8 0

2 years ago

Read 2 more answers

What is equivalent to 1 / 12

inysia [295]

The answer could be something of the sort like 2/24, because 1/12 can't be simplified, you would just keep multiplying both numbers until you get another fraction equal to 1/12

3 0

3 years ago

Read 2 more answers

Just answer the questions to the bottom

Alex777 [14]

Answer:this is hardbejjjjjjjjjjjjjjjjjfbvj2248932483Step-by-step explanation:

sorry..i dont know i felt like this was funny..

4 0

3 years ago