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4 years ago

Identify the slope for each tables below .....Help me

Mathematics

1 answer:

LenaWriter [7]4 years ago

6 0

The slope of number 9 equals 0, becuase it is horizontal.
The slope of number 10 equals.
$- \frac{1}{2}$

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Jody has $40 and needs at least $18.25 to buy the scrapbook. Each sheet of paper costs $0.34. how many sheets of paper can she b

photoshop1234 [79]

<h3><u>Question:</u></h3>

Jody is buying a scrap book and designed paper she has 40 dollars and needs at least 18.25 to buy a scrap book each seet of paper cost 0.34 how may sheets of paper can she buy

<h3><u>Answer:</u></h3>

Jody can buy 63 sheets of paper

<h3><u>Solution:</u></h3>

Jody has 40 dollars

Thus, she can spend less than or equal to 40 dollars

She needs at least 18.25 to buy a scrap book

Each seet of paper cost 0.34

Let "s" be the number of sheets of paper

Then,

$18.25+0.34s\leq 40\\\\Subtract\ 18.25\ from\ both\ sides\\\\0.34s \leq 40-18.25\\\\0.34s\leq 21.75\\\\Divide\ both\ sides\ by\ 0.34\\\\s\leq 63.9$

Thus Jody can buy 63 sheets of paper

4 0

3 years ago

Find the sum of a finite geometric sequence from n = 1 to n = 7, using the expression −4(6)n − 1.

Verizon [17]

Answer:

Step-by-step explanation:

The formula of a sum of terms of a gometric sequence:

$S_n=a_1\cdot\dfrac{1-r^n}{1-r}$

a₁ - first term

r - common ratio

We have

$a_n=-4(6)^{n-1}$

Calculate a₁. Put n = 1:

$a_1=-4(6)^{1-1}=-4(6)^0=-4(1)=-4$

Calculate the common ratio:

$r=\dfrac{a_{n+1}}{a_n}\\\\a_{n+1}=-4(6)^{n+1-1}=-4(6)^n\\\\r=\dfrac{-4(6)^n}{-4(6)^{n-1}}=6^n:6^{n-1}\\\\\text{use}\ a^n:a^m=a^{n-m}\\\\r=6^{n-(n-1)}=6^{n-n+1}=6^1=6$

$\text{Substitute}\ a_1=-4,\ n=7,\ r=6:\\\\S_7=-4\cdot\dfrac{1-6^7}{1-6}=-4\cdot\dfrac{1-279936}{-5}=-4\cdot\dfrac{-279935}{-5}=(-4)(55987)\\\\S_7=-223948$

7 0

4 years ago

What is the 20th term in this sequence .05,.1,.2,.4,...

Jlenok [28]

We can set up an equation.

.05 * 2^(n-1)

n being the nth term in the sequence

Plug in and solve.

.05 * 2^(20-1)

.05 * 2^19

.05 * 524, 288

The 20th term would be 262, 144.

7 0

3 years ago

Read 2 more answers

Need help ASAP please--about estimate. which answer is correct. Please give me an opinion. Three students were asked to use esti

tensa zangetsu [6.8K]

B, if I’m wrong then it’s C.

6 0

3 years ago

What is the volume of a sphere with a radius of 8.8 in, rounded to the nearest tenth of a cubic inch?

olasank [31]

Answer:

2854.54 in^3

Step-by-step explanation:

since volume of a sphere is: V= 4/3 x π x r^3, and the radius is 8.8 in, you just multiply 4/3 x π x (8.8)^3.

4 0

3 years ago