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2 years ago

The speeds (in miles per hour) of motorists ticketed during one day on a five-mile stretch of highway are

Mathematics

1 answer:

Inga [223]2 years ago

8 0

Answer:

Step-by-step explanation:

Range is solved by subtracting the lowest and highest numbers which int his case is 70 and 89 so that make 19

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Which product is greater than 3/4?

kenny6666 [7]

Answer:

first one

Step-by-step explanation:

all the others are lower than 3/4 or .75

6 0

2 years ago

two negative integers are 8 units apart on the number line and have a product of 308. which equation could be used to determine

saul85 [17]

I'm pretty sure it's the first answer!

5 0

3 years ago

Read 2 more answers

. Find the inverse of the function below on the given interval and write it in the form yequalsf Superscript negative 1 Baseline

Elena L [17]

Answer:

The inverse of the function is $f^{-1}(x)=\frac{x-5}{3}$ .

Step-by-step explanation:

The function provided is:

$f (x)=3x+5$

Let $f(x)=y$ .

Then the value of <em>x</em> is:

$y=3x+5\\\\3x=y-5\\\\x=\frac{y-5}{3}$

For the inverse of the function, $x\rightarrow y$ .

⇒ $f^{-1}(x)=\frac{x-5}{3}$

Compute the value of $f[f^{-1}(x)]$ as follows:

$f[f^{-1}(x)]=f[\frac{x-5}{3}]$

$=3[\frac{x-5}{3}]+5\\\\=x-5+5\\\\=x$

Hence proved that $f[f^{-1}(x)]=x$ .

Compute the value of $f^{-1}[f(x)]$ as follows:

$f^{-1}[f(x)]=f^{-1}[3x+5]$

$=\frac{(3x+5)-5}{3}\\\\=\frac{3x+5-5}{3}\\\\=x$

Hence proved that $f^{-1}[f(x)]=x$ .

8 0

2 years ago

Mr. Altamirano opens an account with a simple interest on an account with $1000 at 3% annually for 9 months. How much interest d

gladu [14]

Answer:

1022.50

Step-by-step explanation:

1000*.03= 30. (12mos interest)

30/4=7.50 quarterly interest

7.50x3 (9mos)= 22.50 interest

7 0

2 years ago

What is the equation of a line parallel to y=7x-8 that passes through (5,-2)

Wewaii [24]

Answer:

y=7x+8

Step-by-step explanation:

Find the slope of the original line and use the slope-intercept form

7 0

3 years ago