Please answer number 8. I need help, I don’t understand.

The volume of the cup whose height is 8.3 cm and radius is 2.37 cm in cubic centimeters, by rounding off nearest tenth is 146.4 [tex]cm^{3}[/tex].

Volume of cup by rounding off nearest tenth = 146.4 [tex]cm^{3}[/tex].

The volume V of a cylinder with radius r is the area of the base B times the height h .

V=Bh  or  V=π[tex]r^{2}[/tex]h

It is given that,

height= 8.3 cm

Circumference = 14.9 cm

By using the circumference we first find the radius of circular base or top,

Circumference of the circle = 2πr

14.9= 2 x  3.14 x r

14.9= 6.28 x r

r= [tex]\frac{14.9}{6.28}[/tex]

r= 2.37 cm

Hence, the radius of the circle is 2.37 cm.

Volume of cup( cylindrical shape ) = π[tex]r^{2}[/tex]h

                                                         = 3.14 x 2.37 x 2.37 x 8.3

                                                         = 26.062 x 5.616

                                                         = 146.364 [tex]cm^{3}[/tex]

                                                         = 146.4 [tex]cm^{3}[/tex] (nearest tenth)

The volume of the cup in cubic centimeters, by rounding off nearest tenth is 146.4 [tex]cm^{3}[/tex].

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Answer:

2. -12, -3, 0, 36, -24

3. 0, 8, 13, 15, 9

p-by-step explanation:

Answer:

Density is mass over volume so if the mass is being divided the value is smaller and volume is being multipliedd so value is larger but since volume is the denominator and is getting larger you are going to end up with a smaller number since smaller number gets/ larger number gets = smaller value gets

Step-by-step explanation:

Answer:

3.A

4.D

Step-by-step explanation:

in 3, A is correct because it follows the rule in the picture attached. In question 4 D is not appropriate because log base 9 to the power 9 is equal to 1, but log base 9 to the power 4 + log base 9 to the power 5 is not 1

answer:24

Step-by-step explanation:

The use of BODMAS .We must solve the bracket first before the multiple

Answer:

Sarah reads 4 pages in the morning and 6 pages at night for 2 days. What is the total number of pages that Sarah read?

Step-by-step explanation:

If Sarah read 4 pages in the morning and 6 pages at night for 2 days the would equal 4+6x2

4 is the number of pages in the morning

6 is the pages at night

and 2 is the number of days that she read the pages

According to the calculation, 301 people would be needed a room for the probability that two people shared a birthday to be higher than 50%.

To determine, if there were only 200 days in a year, how many people would need to be in a room before the probability that two people shared a birthday exceeded 50%, the following calculation must be performed:

Therefore, 301 people would be needed a room for the probability that two people shared a birthday to be higher than 50%.

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Answer:

0.55

Step-by-step explanation:

I think you would just divide the numbers

Answer:

Step-by-step explanation:

Number 1 FALSE

9 * 9 * 3 = 81 * 3 = 243

Number 2 TRUE

7 + 7 + 7 = 3 + 3 + 3 + 3 + 3 + 3 + 3

7 * 3 = 3 * 7

21 = 21

Number 3 FALSE

17 * 17 * 17 = 4913

Number 4 FALSE

4 * 1 = 4

Number 5 FALSE

6 + 6 + 6 = 18

Answer:

b/2-3  

8/2-3(substituting B=8)

8/-1

-8

Step-by-step explanation:

Answer:

-8

Step-by-step explanation:

The expression to be evaluated :

We have the value of b, which is equal to 8.

Therefore, on substituting in our simplified expression :

Answer:

Variables

Let m = number of movies rented

Let g = number of video games rented

Given:

System of equations

m + g = 5

2m + 3g = 13

Solution

Rewrite  m + g = 5  to make m the subject:

⇒ m = 5 - g

Substitute this equation into  2m + 3g = 13 and solve for g:

⇒ 2(5 - g) + 3g = 13

⇒ 10 - 2g + 3g = 13

⇒ 10 + g = 13

⇒ g = 3

Substitute found value of g into  m = 5 - g  and solve for m:

⇒ m = 5 - 3

⇒ m = 2

Therefore, 2 movies and 3 video games were rented.

Answer:

Mean Absolute Deviation (MAD): 1.3125

Mean: 2.5625

Step-by-step explanation:

.

[tex]\rm 3x^2[/tex]  is the polynomial of one variable with second-order and [tex]x^2y+3xy^2+1[/tex]  is the polynomial of two variables with third-order

Polynomial is the combination of variables and constants in a systematic manner with "n" number of power in ascending or descending order.

We have polynomials:

[tex]\rm 3x^2[/tex]  and

[tex]x^2y+3xy^2+1[/tex]

For [tex]3x^2[/tex]

In this polynomial, the number of variables is one and the maximum power of x is 2, therefore:

This is the polynomial of one variable with second order.

In polynomial,  [tex]x^2y+3xy^2+1[/tex] there are two variables x and y.

The maximum power of x is 3( x has a power of 2 and y has a power of 1)

This is the polynomial of two variables with third order.

Thus, [tex]\rm 3x^2[/tex]  is the polynomial of one variable with second-order and [tex]x^2y+3xy^2+1[/tex]  is the polynomial of two variables with third-order.

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Answer:

The polynomial 3x2 is a monomial with a degree of 2

The polynomial x2y + 3xy2 + 1 is a trinomial with a degree of 3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Pyramid height should be 14

Base area should be 14*14(196)

So, Base area is 196

1. Multiply the Base area by the height of the pyramid:

196*14=2744

2. Divide the number above by 3:

2744/3=914.7

Answer:

1/40 as a decimal is 0.025.

from Chicago to Atlanta is 700 miles, so in plain-vanilla shipping costs for that will be $240 per every 100 lbs.

if we're shipping 2,000 lbs, hmmm that's 2000/100 = 20, so 100 lbs 20 times, so our plain-vanillla cost will be 20 * 240 = 4800 bucks.

Now, we're Da Bomb, and hell, why not, let's ship it on a 3-5 day, but that has a Premium of an extra 20%, hmmm that means our cost using 3-5 days service is 4800 + 20%.

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{20\% of 4800}}{\left( \cfrac{20}{100} \right)4800}\implies 960~\hfill \underset{final~cost}{\stackrel{4800~~ + ~~960}{5760}}[/tex]

Answer:

3 and 2 is the right answer and others are rongh

Answer:

line 1 and 3

Step-by-step explanation:

Parallel lines have the same slope.

So if we're asked to identify a pair of parallel lines, we can just take a look at the slope (the number before x)

The first one is y=3x-5. Okay.

The second one is y=-3x+7. So the second line isn't parallel to the first line.

The third line is y-3x=12, or y=3x+12.

So the 3rd line is parallel to the 1st line :)

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I'll comment and/or edit my answer :)

Answer:

y = 4/3x + 17 .

Step-by-step explanation:

Use the point-slope form of a line:

y - y1 = m(x - x1)

y - 9 = 4/3(x - -6)

y - 9 = 4/3x + 8

y = 4/3x + 17   <--------- Slope-intercept form.

Answer:

anything above 12

Step-by-step explanation:

would be greater than 12. 13, 14, 16...etc

Answer:

n > 12

Step-by-step explanation:

Represent the number by n.  Then "a number is greater than 12" expressed symbolically is n > 12.

Answer:

V = (25 * 18 * 20)/3 = 9000/3 = 3000 cm^3

Step-by-step explanation:

The formula for this question is fairly simple.

V = (l * w * h)/ 3

You multiply length, width and height- then you divide your answer by 3. This should equal the volume of your pyramid! (cm^3 means "centimeters cubed".....since your question says "Do not enter units" then there is no need for you to enter cm^3...)

Answer:

See below

Step-by-step explanation:

[tex]\cos M=\frac{adjacent}{hypotenuse}=\frac{56}{70}=\frac{4}{5}\\\\\sin L=\frac{opposite}{hypotenuse}=\frac{56}{70}=\frac{4}{5}[/tex]

Hence, both ratios are equal to each other

Answer:

18 plus 5 plus 17 gives 40 therefore ; p is eq 23/40

49, 36, 25, 16, 9, 4

============================================================

Explanation:

We always start with n = 1 when it comes to sequences and series problems.

Plug in n = 1 to get

[tex]a_n = (n-8)^2\\\\a_1 = (1-8)^2\\\\a_1 = (-7)^2\\\\a_1 = 49\\\\[/tex]

The first term is 49, showing that the answer is choice C.

We can stop here, but I'll show how to do another one to help you get practice.  Plug in n = 2.

[tex]a_n = (n-8)^2\\\\a_2 = (2-8)^2\\\\a_2 = (-6)^2\\\\a_2 = 36\\\\[/tex]

I'll let you compute the other terms.

Answer:

49,36,25,16,9,4

Step-by-step explanation:

First, eliminate anwser A since it's all negatives, and when squaring, negatives (without imaginary numbers) are impossible.

Foil out the equation:

a=(n-8)^2

a=(n-8)(n-8)

a=n^2-8n-8n+64

a=n^2-16n+64

Now find the values by substituting values n>=1:

49=1^2-16(1)+64

36=4-32+64

etc.

Answer: 115/hr & $75/hr

Step-by-step explanation: please see attached PDF document for detailed instructions including step by step.

4374

Step-by-step explanation:

We are multiplying by 3 each time

2*3 = 6

6*3 =18

18*3 = 54

The formula is

an = 2 * 3^(n-1)  where n is the term number

a8 = 2 * 3^(8-1)

a8 = 2 * 3^7

a8 = 2*2187

a8 = 4374

Answer:

4374

Step-by-step explanation:

First term, a =2

Common ratio, r = 3

nth term = a.r^(n-1)

where , n is the number of terms

8th term = 2.(3)^(8–1)

=2(2187)

=4374

⇒ A geometric progression, sometimes termed a geometric sequence, is a series of integers in which each term after the first is determined by multiplying the preceding one by a fixed, non-zero value known as the common ratio.

Answer:

  not appropriate

Step-by-step explanation:

The values in the dataset increase, then decrease with incrasing values of the independent variable. A linear regresssion equation would match data with a (more or less) constant slope. It would not be a good match for this dataset.

A linear regression equation is not appropriate.

Answer:

1206.857, cubic feet

Step-by-step explanation:

(22/7×4²)×24

=1206.857 cubic feet

Answer:

Step-by-step explanation:

hello .....

note :  the slope of the line (AB) is :

m =  (YB -YA)/(XB - XA)      

in this execice given A  (-1, 3) and B(0, 1)

m1= (1-3)/(0+1) so :  m1= -2

same method for the line (CD) : m2 = (4-2)/(1-0) and C(1;4)  D(0;2)

so: m2 = 2

conclusion : m1 ≠ m2

Will Ty and Leo pass through a common coordinate,

Answer:

2ac + ad + 4ea + 6bc + 3bd + 12be (Simplified)