I need help please help me.

Answer:

Use the formula for surface area of a cone:

SA = π[tex]r^{2}[/tex] · πrs

'π' stands for the pi(22/7 or 3.14) and 'r' stands for the radius which is being squared. ← This will represent the area of the base of this cone.

'π' stands for the pi(22/7 or 3.14), 'r' stands for the radius, and 's' will stand for the slant height of this cone. ← This will represent the area of the lateral surface of this cone.

What we know;

Correct me if i'm wrong with these measurements.

Now plug in what you know into the formula:-

SA = π[tex]r^{2}[/tex] · πrs

SA = 3.14(3^2) · 3.14(3) · 8

Quick note: The ' ^ ' symbol stands for a power symbol, meaning that any base is raised to the power of any exponent.

Solve!

SA = 3.14(9) · 3.14(3) · 8

SA = 28.26 · 9.42 · 8

SA = (28.26 · 9.42) · 8

SA = 266.2092 · 8

SA = 2,129.6736, and rounded to the nearest whole is 2,130.

The surface area of this cone is, 2,130 square centimetres.

Answer:

1/12

Step-by-step equation

Since your spinning a spinner twice which has a chance of landing on any number with a 1/6 chance spinning a number than q would give you a 1/12 chance. Another equation would be 1/6 * 2

Answer:

First answer is correct

Step-by-step explanation:

pi*r^2

use formula and substitute

r is the radius so half the diameter

Answer:

the MAD to this set is 6.75

Step-by-step explanation:

The process is pretty long on how to find the MAD but here it goes.First you find the mean of the set( 70 )then you find the distances between all the numbers and the mean( 68 is 2 values away from being 70 so that would be 2) than you add all the distances together than divide that number by the amount of values are in the set.

hope that makes sense have a good day

Answer:

mode = 88

Step-by-step explanation:

Mode means the number that repeats the most. Out of all the numbers, 88 repeats itself three times in the set of data while all the numbers are there once or twice.

Answer:

the guy above me is correct

Step-by-step explanation:

Mark him brainliest

Answer:

Distance of Tunnel is 500 meters + Train travel rate is 20 meters per second = 25 seconds to pass through the tunnel only therefore the outstanding balance of 35 seconds x 20 meters per second =600 meters Train

Step-by-step explanation:

Total of length of train 600 meters and tunnel (500 meters) is 1,200 meters +30 seconds = TR of 20 meters per second

Answer:

4060

Step-by-step explanation:

if my calculator is right then thats the awnser

Answer:

4,060

Step-by-step explanation:

I think that shall be correct!!!!

HAVE A GREAT DAY

1. No

She needs $15.44 to complete the purchase.

2. Yes

If she uses the coupon then she will have her stuff and $14.56 left.

Hope this help please give brainliest

Step-by-step explanation

Answer:

199.51$

Step-by-step explanation:

10 x 12 = 120$

25 x 5 = 125$

5 x 8 = 40¢

1 x 11 = 11¢

30 + 50 = 80$

120$ + 125$ + 40¢ + 11¢ + 80$ = 325.51$

325.51$ - 44$ = 281.51$ - 25$ = 256.51$ - 12$ = 244.51$ - 15$ = 229.51$ - 30$ = 199.51$

Step-by-step explanation:

is there any value for S??

Answer:

15ft

Step-by-step explanation:

Answer:

V≈83.78

Step-by-step explanation:

The formula to find the volume of a cone is V=πr(squared) h/3

Steps

V= π (4)^2  5/3

V= π (16)  1.66666666667

V = 50.2654824574 * 1.66666666667

v= 83.7758040958

Round

V = 83.78

Answer:

The volume of cone is 83.73m³.

Step-by-step explanation:

To find the volume of the cone we use Formula:

[tex] \sf V = \frac{1}{3} \pi {r}^{2} h \\ \\ \implies \: \frac{1}{3} \times 3.14 \times {4}^{2} \times 5 \\ \\ \implies \frac{1}{3} \times 15.70\times 16 \\ \\ \implies \: \frac{1}{ \cancel3} \times \cancel{251.20} \\ \\ \implies \sf \pink{83.73 {m}^{3} }[/tex]

Hence, the volume of cone is 83.73m³.

Answer:

  (b)  y = 4x +15; y = 10x -2

Step-by-step explanation:

It is often sufficient to check for reasonableness in the offered answers. That is the case here.

__

The offered answer choices differ in the combinations of slope. The offered slopes (x-coefficients) are 4 or 1/4, 10 or 1/10, so it is sufficient to determine if the slope is greater than 1 in each case.

The slope is the ratio of the change in y to the change in x. It will be greater than 1 if y changes by a larger number than x does.

x-values in this table change by 4-2 = 2. y-values change by 31 -23 = 8, which is more than 2. The slope is greater than 1 for the first equation. (It is 8/2 = 4.)

The first two x-values in this table differ by 0-(-1) = 1. The first two y-values differ by -2-(-12) = 10, which is more than 1. The slope is also greater than 1 for the second equation. (It is 10/1 = 10.)

The x-coefficients in the answer choices are ...

  a) 1/14, 1/10 . . . incorrect

  b) 4, 10 . . . . correct

  c) 1/4, 10 . . . . partly correct

  d) 4, 1/10 . . . . partly correct

Answer:

The growth of the plant

Step-by-step explanation:

the plant isn't dependant on anything (well at least that we know of)

Answer:

A

Step-by-step explanation:

Set a's typical value is 7.2, set b's is 6.
Set a's spread is 3, set b's spread is 7.

7.2 > 6
3<7

Therefore, the answer is A.

1           13/10

2           1/20

3           3/10

4           69/20

5           191/60

6           17/15

these answers may not be right, but its the best I can do

I did them in order from top left, down one, down one, then top right, down one, down one.

Answer:

-6

Step-by-step explanation:

6a - 5 = 7 + 8a

6a - 8a = 7 + 5

-2a = 12

a = 12/-2

a = -6

Hope it helps:)

Answer:

I cant answer with no picture

Step-by-step explanation:

Answer:

Step-by-step explanation:

We multiply 4/5 times 3/1 to find how many miles the penguins swam in one hour.

4 x 3/5 x 1

12/5

The penguins swam 12/5, or 2 and 2/5 miles in one hour.

Table:

Miles     4/5        12/5

Hours    1/3           1

Answer:

We multiply 4/5 times 3/1 to find how many miles the penguins swam in one hour.

4 x 3/5 x 1

12/5

The penguins swam 12/5, or 2 and 2/5 miles in one hour

Step-by-step explanation:

brainliest please

Answer: hii :)

Step-by-step explanation:

Evaluate using scientific notation.

Hopefully this helps you

- Matthew

Answer:

c = 28.26 cm

Step-by-step explanation:

equation for circumference of a circle is 2πr

r = d/2 so here r = 9/2 = 4.5

2 x 3.14 x 4.5 = 28.26

i only knew one sorry :((

Answer:

22

Step-by-step explanation:

You can just use the previous terms to derive the 4th term.

3rd term: 4(2) + 2 = 10

4th term: 10(2) + 2 = 22

The 4th number in the pattern is 22 .

A pattern is a repeated arrangement of numbers, shapes, colors and so on. The Pattern can be related to any type of event or object. If the set of numbers are related to each other in a specific rule, then the rule or manner is called a pattern. Sometimes, patterns are also known as a sequence.

According to the question

Mrs. Johnson asked to form a number pattern using these rules.

rule1: Use the number 1 as the first term.

rule2:To find any other term, double the previous term and add 2

and The first two numbers in the pattern are 1 and 4

therefore ,

First term : 1

Second term : 4  (1*2+2)

Third term :   10    (4*2+2)

Fourth term :  22   (10*2+2)

Hence, the 4th number in the pattern is 22 .

To know more about pattern here :

https://brainly.com/question/23037339

# SPJ2

Answer:

84 months

Step-by-step explanation:

Maria is 7 years old, there are 12 months in a year, multiply 12 by 7.

12 * 7 = 84

Maria is 84 months old

Answer:

Maria is 84 months old.

Multiply the years(y) by every 12 months that pass(m).

[tex]y * m = 84[/tex]

note that y is 7, and m is 12, because we count every 12 months that pass for 7 years.

Answer:

These are all the expressions that represent how much cole spent on jam last weekend.

0.80 (5b + 5s)

4b + 4s

4 (b + s)

Answer: 0.80 (5b + 5s)

Step-by-step explanation:

Answer:

12x - 14y cubic yards

Step-by-step explanation:

a keyword in this is... difference

it also asks you to compare the first truck to the second truck not the second to the first

x = the amount of mulch the first truck can deliver

y = the amount of mulch the second truck can deliver

the first truck takes 12 trips so 12 trips multiplied by x (the amount of mulch the first truck can deliver) is 12x because it doesn't give us x

the second truck takes 14 trips so 14 trips multiplied by y (the amount of mulch the second truck can deliver) is 14y because it doesn't give us y

The question asks for the difference between the total number of cubic yards that the first truck carries through their 12 trips and the total number of cubic yards that the second truck carries through their 14 trips.

This gives us, 12x - 14y cubic yards

hopefully, this makes sense :)

Answer:

12x - 14y cubic yards

Step-by-step explanation:

braniliest pls

Answer: x^2+5

Step-by-step explanation:

x is the unknown variable which is representing the number squared and then you add 5 to complete expresssion.

Answer:

x² + 5

Step-by-step explanation:

Given statement:

We know the following:

    1. "number squared" ⇒ A number multiplied to the same number.

    Let the number be known as "x". Then;

        [tex]\implies x \times x[/tex]

        [tex]\implies \underline{x^{2}}[/tex]

   2. "added to 5" ⇒ Addition between number, squared and 5.

   Let the number be known as "x". Then;

        [tex]\implies (x)^{2} + 5[/tex]  [tex](\text{number, squared} \implies x^{2} )[/tex]

        [tex]\implies \boxed{x^{2} + 5}[/tex]

Therefore, the expression that represents the statement is x² + 5.

If each side of the case is three times longer than the width of the pyramid that means we would do (wx3)^3 as to find the volume of a perfect cube we do to the power of 3.

Answer:

surface area is 86647.97 yd²