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Keith_Richards [23]
2 years ago
6

A bookstore charges $4 for shipping, no matter how many books you buy. Irena makes a graph showing the shipping cost for I to 5

books. She claims that the points she graphed lie on a line. Does her statement make sense? Explain
Mathematics
1 answer:
mihalych1998 [28]2 years ago
4 0

Answer:

can we see the graph?

Step-by-step explanation:

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Can you please help with rate please help filling in the missing box
Arte-miy333 [17]
Hmm
rate=change in price/change in number of books

see left one
notebooks,money
6,1.8
12,3.6
change in money/change iin notebooks=(3.6-1.8)/(12-6)=1.8/6=0.3
rate is 0.3 for left one
rate is 30 cetns per notebook


right one
number of books,price
3,1.05
6,2.1
change in money/change in notebooks=(2.1-1.05)/(6-3)=1.05/3=0.35
price is 35 cents per
12*35=420 cents=$4.20

the blank on bottom right is $4.20
the rate on the left is $0.30 per notebook
the rate on the right is $0.35 per notebooks
left one is the better deal
4 0
3 years ago
Find (-4) for f(x) = 9(3)^x<br> A. -108<br> B. 1/3<br> C. -729<br> D. 1/9
avanturin [10]

Answer:

D

Step-by-step explanation:

9(3)^-4

3^2 × (3^-4)

in algebraic expression a^n × a^m = a^n+m

3^2+(-4)

3^-2

but 3^-2 = 1/3²

1/3²= 1/9

3 0
2 years ago
Can someone please help me I really need help please help me
cluponka [151]

Answer:

Below in bold.

Step-by-step explanation:

f(n) = |-2n| - 6

The vertical lines about the -2n mean the 'absolute value' of the expression So if -2n is negative  the absolute value is positive.

n = 19 , f(n) = |-2*19| - 6 = |-38| - 6

= 38 - 6 = 32.

In the same way:

n = 20, f(n)  |-40| - 6 = 40 - 6

= 34.

n = 21, f(n) = 36

n = 22, f(n) = 38.

7 0
3 years ago
Which of the following is included in a job description?
Brilliant_brown [7]
The duties the person in the position preforms
8 0
2 years ago
Read 2 more answers
HELPPP ITS ABOUt DILATION EXPLANATION NEEDED PLZZZ
Lubov Fominskaja [6]

<em>Answer:</em>

<h3><em>B'=</em><em>(</em><em>1</em><em>6</em><em>,</em><em>1</em><em>4</em><em>)</em></h3>

<em>It </em><em>is </em><em>clear </em><em>from </em><em>the </em><em>co-ordinates</em><em> </em><em>of </em><em>the </em><em>square </em><em>that </em><em>CD </em><em>is </em><em>parallel </em><em>to </em><em>X </em><em>axis </em><em>and </em><em>BC </em><em>is </em><em>parallel </em><em>to </em><em>y-axis.</em><em> </em><em>So,</em><em>X=</em><em>8</em><em>,</em><em>y=</em><em>7</em>

<em>so </em><em>the </em><em>co-ordinates</em><em> </em><em>of </em><em>B=</em><em>(</em><em>8</em><em>,</em><em>7</em><em>)</em>

<em>Now </em><em>after </em><em>dilation</em><em> </em><em>of </em><em>factor </em><em>2</em><em>,</em><em> </em><em>all </em><em>coordinates</em><em> </em><em>will </em><em>be </em><em>multiplied</em><em> </em><em>by</em><em> </em><em>2</em><em>.</em>

<em>So </em><em>B'=</em><em>(</em><em>1</em><em>6</em><em>,</em><em>1</em><em>4</em><em>)</em>

<em>hope </em><em>it</em><em> helps</em>

7 0
3 years ago
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