Mathematics College

I can’t figure out the surface area. Someone please help !! :)

I Cant Figure Out The Surface Area. Someone Please Help !! :)

Answers

Answer 1
Answer:surface area is 227•1volume is 321•7

Step-by-step explanation:

diameter is 8•5

radius is d/2

8•5/2

=4•25

surface area = 4πr^2

4×22/7×4•25×4•25

=1589•5/7

=227•1

Volume= 4/3πr^3

4/3×22/7×4•25×4•25×4•25

4/3×22/7×76•76

=321•7

Hope it helps

plz mark as brainliest

Related Questions

Johnny gets $40 per week as an allowance. If he goes to the movies and spends $3 for popcorn and $5 on soda, what percent of his allowance did he spend? *

Answers

20% $40/$8 = 5. 8, 16, 24, 32, 40. 5 numbers, 20% each

need help with this

Answers

Answer:

y = 1

Step-by-step explanation:

Since 15 and 5, 18 and 6, and 27 and 9 all have 3 in common, then 3 should go into 1.

Answer:

1

Step-by-step explanation:

equation is always x/3=y

6=xy does this show direct variation Explain your reasoning. ANSWER THIS PLZ

Answers

Answer:

No. It is an inverse variation.

Step-by-step explanation:

6= xy

Making y the subject of formula:

[tex]y = \frac{6}{x} [/tex]

For a direct variation, the equation would be in the form of y=kx, where k is a constant.

However, the equation above is in the form of [tex]y = \frac{k}{x} [/tex].

Thus, 6=xy does not show direct variation.

I didn’t get taught his so I need help

Answers

Answer:

(-2,1)

Step-by-step explanation:

sooo

x comes first and y comes next

(13x+2)+(3x-4)+(5x-7)​

Answers

I’m not 100% sure but I think the answer to this would be 21x - 9.

Answer:

13x+2+3x-4+5x-7=180

Step-by-step explanation:

(3x + 4) (1 - 1)
Evaluate the limit lim
a.-3
b. 3
c. 1
d limit does not exist

Answers

it d lol cause d is the smartest answer i know
The answer is d because 1-1=0 and you can’t simplify any further

An airplane 30,100 feet above the ground begins descending at the rate of 2150 feet per minute. Write and solve a linear equation to find how long it will take the plane to reach the ground.

Answers

Answer:

14 minutes.

Step-by-step explanation:

To create a linear equation that represents an airplane flying at an altitude of 30,100 feet, descending 2,150 feet per minute, that represents how long it will take for the airplane to touch down, proceed as follows:

2,150X = 30,100

X = 30,100 / 2,150

X = 14

Thus, the plane will take 14 minutes to reach the ground, descending 2,150 feet per minute from 30,100 feet.

The graph at the bottom shows the relationship of the amount of time (in seconds) to the distance (in feet) run by a jaguar.

What does the point (5,290) represent in the context of the situation?

Answers

Answer:

5,290 repersent the distence that the jaquar jumped . and ran.

Step-by-step explanation:

pleas mark brainist plz happy to help

Ivy and Andrey were asked to find an explicit formula for the sequence -100,-50,0,50,...−100,−50,0,50,...minus, 100, comma, minus, 50, comma, 0, comma, 50, comma, point, point, point, where the first term should be f(1)f(1)f, left parenthesis, 1, right parenthesis.
Ivy said the formula is f(n)=-100+50(n-1)f(n)=−100+50(n−1)f, left parenthesis, n, right parenthesis, equals, minus, 100, plus, 50, left parenthesis, n, minus, 1, right parenthesis.
Andrey said the formula is f(n)=-150+50nf(n)=−150+50nf, left parenthesis, n, right parenthesis, equals, minus, 150, plus, 50, n.
Which one of them is right?

Answers

Answer:

both

Step-by-step explanation:

what is the value of x when x:3=2.13

Answers

It’s 0.71 is the answer I divid

Answer:

The other dude was wrong :( the answer is 6.39

Step-by-step explanation:

I took the test on K12

r/3+2=21 solve for r

Answers

Answer:

r=63

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    r/3-(21)=0             r

Simplify   —

           3

r    

 — -  21  = 0

 3     2.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  3  as the denominator :

         21     21 • 3

   21 =  ——  =  ——————

         1        3  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

When Max got home from school yesterday, he went into the kitchen to get a snack. There was 3/4 pan of brownies on the counter. Max ate 1/4 of what was left. What part of the pan of brownies did Mark eat?

Answers

Answer:

1/2

Step-by-step explanation:

3/4-1/4=1/2

Mark has less than 20.00 to spend on the cost of dinner

Answers

What is the exact question tho

i need help! please....

Answers

Answer: the elapsed time is 3 hours and 45 minutes, so option C.

pls help, you have to write in fraction form.​

Answers

91/1, answer is 91

522% of 175 is 91

Answer:

42/145

Step-by-step explanation:

i tried might be wrong

Jasper Diaz apostrophe Balance Sheet. Total assets are 15,800 dollars. Total liabilities are 4,400 dollars.
Consider Jasper’s balance sheet.

What is the total value of Jasper’s assets?


What is the total value of Jasper’s liabilities?

Answers

Answer:

the total value of jaspers assets is:  $15,800

the total value of jaspers liabilities is: $4,400

Step-by-step explanation:

Answer:

the total value of jaspers assets is:  $15,800

the total value of jaspers liabilities is: $4,400

Step-by-step explanation:

hope this helps :D

Need help #1. The answer is shown, but I don’t know how to get to the answer. Please teach and show steps.

Answers

Answer:

B

Step-by-step explanation:

We are given that x and y are functions of time t such that x and y is a constant. So, we can write the following equation:

[tex]x(t)+y(t)=k,\text{ where $k$ is some constant}[/tex]

The rate of change of x and the rate of change of y with respect to time t is simply dx/dt and dy/dt, respectively. So, we will differentiate both sides with respect to t:

[tex]\displaystyle \frac{d}{dt}\Big[x(t)+y(t)\Big]=\frac{d}{dt}[k][/tex]

Remember that the derivative of a constant is always 0. Therefore:

[tex]\displaystyle \frac{dx}{dt}+\frac{dy}{dt}=0[/tex]

And by subtracting dy/dt from both sides, we acquire:

[tex]\displaystyle \frac{dx}{dt}=-\frac{dy}{dt}[/tex]

Hence, our answer is B.

Answer:

Let x and y be functions of time t such that the sum of x and y is constant.

(B) is the right answer


Help plis




17. Find the sum of (10x + 3) and (- 4x - 2).

Answers

Answer:

6x + 1

Step-by-step explanation:

1. (10x + 3) + (-4x -2) --> sum means to add.

2. Combine like terms --> 10x - 4x = 6x; 3 - 2 = 1.

3. 6x + 1

(6x+1) ........ hope it help

what is 2-2? i dont know

Answers

I think 0? Correct me if I’m wrong

Answer:

2-2 = 0

Step-by-step explanation:

2 is a positive number

While the second 2 is a negative 2

(-2)

so a positive and a negative number can cancel eachother out

Therefore the answer is 0 since they are both 2 :)

Find the x- and y-intercepts of the graph of the equation.
-4x + 2y = 0
Plz help

Answers

Answer:

hey you can also go on      m a t h w a y     to find this!

Step-by-step explanation:

both are (0,0)

SECTION B.
7. After 12 years Raghav will be three times as old he was four years ago. Find his present age.
​

Answers

Answer: Present age = 12 yrs old

Explanation:

Let x be the present age

x + 12 = 3(x - 4)
x + 12 = 3x - 12
x - 3x = -12 - 12
-2x = -24
x = -24/-2
x = 12

Enter 72% as a fraction in the simplest form

Answers

Answer:

18/25

Step-by-step explanation:

72% = 72/100

72/100 simplified

=18/25

it would be 72/100 but then simplified to 36/50 but then simplified again to be 18/25

PLZZ HELP !! Select the correct answer. What are the zeros of the function y= (x-4)(x^2 - 12x+36)
A. -6,4 and 6
B. 4 and 6
C. -6 and -4
D. 0, 4, and 6​

Answers

It’s B. 4 and 6
If I’m not wrong

The zeroes of any function are where the function touches or passes through the x-axis.

To find these zeroes, we can factor, and set each part equal to 0.

y = (x - 4)(x^2 - 12x + 36)

It looks like some of the factoring was already done for us! All we have to do is factor the quadratic. To do so, we need two numbers that multiply to equal (a * c) and add up to b. In this case those two numbers are -6 and -6.

y = (x - 4)(x - 6)(x - 6)

Finally, set each part equal to 0!

x - 4 = 0

x = 4

x - 6 = 0

x = 6

x - 6 = 0

x = 6

Therefore, the zeroes of the function are 4 and 6, option B.

Hope this helps!! :)

The equation of the line? ​

Answers

Answer:

○ [tex]\displaystyle y = 2x + 7[/tex]

Step-by-step explanation:

Use the Slope-Intercept Formula instead of the Point-Slope Formula because it is MUCH, MUCH faster, plus parallel equations have SIMILAR RATE OF CHANGES [SLOPES ], so [tex]\displaystyle 2[/tex] remains as is:

[tex]\displaystyle y =mx + b \\ \\ 3 = 2[-2] + b → 3 = -4 + b; 7 = b \\ \\ \boxed{y = 2x + 7}[/tex]

I am joyous to assist you at any time.

HELP! whoever gets it right gets brainliest!

Answers

Answer:

The answer is B

Step-by-step explanation:

Answer is B

Answer:

The answer is B

Step-by-step explanation:

BBBBBBBBBBBBBBBBBBBBBBBBBB IS THE ANSWER

Find the value of each variable.

Answers

Ummm What variables

√−100 = + i
edge2021 Algebra 2

Answers

Step-by-step explanation:

√-100

= √100 * √-1 (√mn = √m * √n)

= 10i. (i² = -1, i = √-1)

what is $7.50 with a added 6% sales price.​

Answers

Answer:

0.0125 dollars per sales

hope this helps

Step-by-step explanation:

Answer:

7.89 i believe i looked it up

PLEASE NEED HELP aS FASt

Answers

Answer:

The second choice

Step-by-step explanation:

The second choice is correct because:

1.5*4=6

x^2+5x-6 how do i factor this

Answers

Answer:

Step-by-step explanation:

you have to use the quadratic equation,

and we will get 2 roots,

x=1 and x=-6

(x-1)(x+6)

x-1)(x+6. Hope it helps man
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