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2 years ago

11

A library charges a late return fee of 3.50 plus $0.15 per day that a book is returned late write a equation to find the total l

ate fee f for any numbers of days late d

1 answer:

joja [24]2 years ago

7 0

The equation would be:

3.50 + 0.15x

x represents each 'late day'

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Alex says that the function f(x) = (3x)2 represents a vertical stretch of the quadratic parent function by a factor of 3. Marta

gavmur [86]

Our parent function is f(x)=x^2. A vertical stretch by a factor of k means that every point (x,f(x)), has been transformed into (x,kf(x)). Alex is clearly incorrect as our parent function has been transformed to (x,9f(x)), not (x,3f(x)). A horizontal stretch(or compression) by a factor of k means our function has been transformed to (x/k,f(x)). Here, Marta is saying our function should look like (3x,f(x)). This can also be achieved by plugging 3x into the parent function, which would give us f(3x)=(3x)^2, so it seems that Marta is the correct one.

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3 years ago

Write the equation of a line that passes through points (-3,2)(-9,-8)

ollegr [7]

Answer:

slope intercept form is y=x+1

6 0

3 years ago

Who can help me with this

Lady bird [3.3K]

Answer:

Growth

Step-by-step explanation:

Given

$\frac{2}{3}(2.5)^x$

Required

Growth or decay

The general form is:

$y = ab^x$

Such that:

$b = rate$

For b, we have the following conditions:

$b > 1$ ----- Growth

$0$ --- Decay

$b = 1$ ---- None

Compare $\frac{2}{3}(2.5)^x$ to $y = ab^x$

$b = 2.5$

<em>Because 2.5 > 1, then the first condition applies (growth)</em>

3 0

3 years ago

Look at these calculations.

Deffense [45]

Answer:

None or 1499 + 287 I assume

8 0

2 years ago

Read 2 more answers

Please answer this quick. will give brainliest

Vsevolod [243]

Answer:

the time Ari spent to walk is

$1 \frac{3}{4} \div 1 \frac{1}{4} = 1.4(h)$

the time Beth spent to walk is

$1 \frac{1}{2} \div 1 \frac{1}{8} = 1.(3)(h)$

the time Cathy spent to walk is 1h21' = 1.35(h)

so the time Ari spent > Cathy > Beth

=> list: Beth, Cathy, Ari

8 0

3 years ago