Mathematics Middle School

helppp plzzzz...also give steps..plz

Answers

Answer 1

Answer:

4.5 cm

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3

121.5 pi = 4/3 pi r^3

Divide each side by pi

121.5 = 4/3 r^3

Multiply each side by 3/4

3/4 *121.5 = 3/4 * 4/3 r^3

91.125 = r^3

Take the cube root of each side

(91.125)^ (1/3) = r^3 ^(1/3)

4.5 = r

Answer 2

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Related Questions

***no links please:)****

Answers

Answer:

Step-by-step explanation:

√64 = 8

so B isn’t correct because 8.16... is greater than 8 and the same is for C

The only correct option is A: 7.5

Answer:

the answer is

A because /64= 8

and between 6⅛ and 8

its 7½

Pls help me so I don’t get left back.

Answers

Answer:

a) ∠ IHJ is 55° because MIJ is a straight angle

∠IHN is 125° because vertically opposite from ∠IHM

∠ NHM is 55° because it is vertically opposite from ∠ IHJ

b) Angles 4 and 6 are interior angles. They equal to 180. A similar example to that is ∠5 and ∠3.

c)Angle 1 and 5 are corresponding angles. They equal the same. Anothe example would be ∠6 and ∠2.

Hope this helped!

The answer above……………..

Plz help will be marked BRAINLIEST

Answers

Answer:

a-45

b-30

c-90

Step-by-step explanation:

blue shape-90 degree angle

pink is 45 since 2 make up a quadrant

aqua is 30 because half 2 quadrants equal 180.

180-(45x2)=90

90/3=30

hope this helps!

The answer above is correct……………………………..,,,,

I need this In the next 6 mins PLEASE HELP!!!!!!

Answers

Answer:

717cm

Step-by-step explanation:

if you add to the next place it will seeded

Can I get some help plzzz. Also plz give steps

Answers

Answer:

r=2.9 cm

Step-by-step explanation:

Given:

volume=486π cm^3

height=18 cm

volume of a cone=πr^2h

486=π*r^2*18

486=18π*r^2

486/18=πr^2

27/π=r^2

27/3.14=r

8.5987=r^2

[tex]\sqrt{8.5987[/tex] =r

2.9323 =r

2.9=r(after converting to nearest tenth)

R=2.9cm………………………………………

A mirror frame in the shape of an oval is shown below. The ends of the frame form semicircles:
An oval is formed by a rectangle with semicircles at each end. The length of the rectangle is 54 inches. The width of the rectangle is 27 inches.

Which of the following is the perimeter of the inner edge of the frame?

(π = 3.14)

192.78 inches
246.78 inches
277.56 inches
331.56 inches

please help lol

Answers

Answer:

The answer is 192.78 inches

Step-by-step explanation:

An oval is formed by a rectangle with semicircles at each end. We can visualize this easily.

The length of the rectangle is 54 inches.

The width of the rectangle is 27 inches.

The perimeter of rectangle is =

= 162 inches

And because there are two semicircles, we can combine them to form a circle. So, perimeter of a circle is called a circumference.

The width of the rectangle forms the diameter, so its half will be the radius.

r =

The circumference is given by :

= inches

Now as the described oval shape is a complete figure without lines inside, we will subtract the width of both sides of the rectangle from the complete perimeter.

The complete perimeter is = inches

The inner edge perimeter will be = = 192.78 inches

pls mark as brainliest

Answer:

1st option

Step-by-step explanation:

answer for 10 points and brainly

Answers

Answer:

I have matched the answer in the fig hope it helped u

Step-by-step explanation:

can u mark me as brainlist plz...

D,c,b,a thats how it goes

Can someone answer these for me (real answers only please) thank you!!!!!!

Answers

Answer:

5. an increase and then decrease; the spike in visitors could be because of the start of summer

6. December is around Christmas, where most people would have holiday

7. (I'm not sure)

5 is a increase and then a discrease 6 and 7 ugh I can’t think

Find the solution to the system of equations by graphing.

y= 6-x and y=x-2
A (2, 4)
B (-4,2)
C (4.2)
D no solutions

Help please!!

Answers

The answer is C

Do you need the step by step ?

Answer:

C is the answer :)

Step-by-step explanation:

I hope this answer helps you out!

what angle is complementary to 1 ?

Answers

Answer:

angle 2

Step-by-step explanation:

angle 1 and 2 together make 90 degrees

angle 2 is complementary to 1 making it 90 degrees when together

Need help with math 15 points

Answers

Answer:

# candies bought and # shirts bought

Step-by-step explanation:

Help please!! Will give Brainly, and 50 Points.

Answers

Answer:

c. (11,-21)

Step-by-step explanation:

to visualize this, i put it on a graph and if you graph the 2 lines you find the point they intersect, which is (11, -21) Hope this helps!

Answer:

Step-by-step explanation:

Consider the inequality -20.2 > 0y. Which of the following must be true? Check all that apply.
1.You cannot divide by zero.
2.The inequality is equivalent to -20.2 > 0, which is false.
3.The solution is y > 0.
4.The solution is 0 > y.
5.The solution is y = 0.

Answers

Answer:

Step-by-step explanation:

1 and 2

1 because indeed you can't divide -20.2 by zero to get y

2 because the inequality is basically a false situation.

The answer is definitely 1 and 2

Lauren has a points card for a movie theater.
She receives 60 rewards points just for signing up.
She earns 5.5 points for each visit to the movie theater.
She needs 104 points for a free movie ticket.

Write and solve an equation which can be used to determine xx, the number of visits Lauren must make to earn a free movie ticket.

Answers

Multiply points per visit x number of visits, using x for the number of visits:

5.5x

Add that to the points she already has:

5.5x + 60

This needs to equal a total of 104 points:

5.5x + 60 = 104

Now solve for x

5.5x + 60 = 104

Subtract 60 from both sides

5.5x = 44

Divide both sides by 5.5

X = 8

She needs 8 more visits

the answer is 5.5x+60=104

9/4 = blank divided by 4

please help- what is blank

Answers

Answer:

Step-by-step explanation:

You gave the answer right in your question

Is is asking what is divided by 4 to equal 9/4( 9 over 4)

What is the area of the following triangle?
A. 300 in
B. 60 in
C. 150 in
D. 72 in

Answers

Answer:

C, 150 in

Step-by-step explanation:

12 in x 25 = 300

300/2

=150 in

Am I correct?
Tell me if I’m wrong and what is the correct answer.

Answers

Answer:

3.6 is the correct answer because it is bigger,

Step-by-step explanation:

it’s the other way around

Joel scores in 80% of his games. His team is starting the playoffs, and if they make it to the state championship, they will have played 5 games. Joel wants to determine the probability that he scores in 4 of the 5 games.Which simulation design has an appropriate device and a correct trial?

A) Roll a die letting 1 represent Joel scoring and 2-6 represent Joel not scoring. Roll the die four times.

B) Roll a die letting 1 represent Joel scoring and 2-6 represent Joel not scoring. Roll the die five times.

C) Using a table of random digits select a digit between 0 and 9. Let 0-7 represent Joel scoring and 8-9 represent Joel not scoring. Select four digits.

D) Using a table of random digits select a digit between 0 and 9. Let 0-7 represent Joel scoring and 8-9 represent Joel not scoring. Select five digits.

Answers

Answer:

Step-by-step explanation:

4 out of 5 games is 80%:

So if we know, as a rule that "Joel scores in 80% of his games.", the probability that he will score in 80% of his games is 1 - that is, we know it for sure

100% sure

The answer is D without a single doubt

Thor is 3 miles north and 4 miles west of the camp site. Willow is 2 miles south and 8 miles east of the campsite. How far apart are Willow and Thor?

Answers

3 miles away from each other

3 miles away aparttt

Arianna earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop. How much would she make in a workweek if she sold $4800 worth of merchandise?\

Solve with steps. First, then, next, after

Answers

Answer: Take the answer from somebody

Step-by-step explanation:

it will 800 divided by 2 and u might be the answer

ABCDEFGH is a rectangular prism with CD=5, AD=6, and AE=8. Find the volume of tetrahedron ABCF.

Answers

Answer:

Step-by-step explanation:

the volume of tetrahedron ABCF =

⅓× ½×5×6×8 = 40

The volume of the given tetrahedron ABCF will be 40 cube units.

What is a tetrahedron?

A tetrahedron is a polyhedron having four faces, six edges, and four vertices, all of which are triangles. It is also known as a triangular pyramid with a triangle base.

The ABCDEFGH is a rectangular prism given in the question, which has :

CD = 5, AD = 6, and AE = 8

We have to determine the volume of tetrahedron ABCF.

As per the question, the required solution would be as:

The volume of tetrahedron ABCF = 1/3 × 1/2 × 5 × 6 × 8

Apply the multiplication operation, and we get

The volume of tetrahedron ABCF = 40 cube units

Thus, the volume of the given tetrahedron ABCF will be 40 cube units.

Learn more about the tetrahedron here:

https://brainly.com/question/17132878

#SPJ2

Please help asap or give explanation for brainliest

Answers

Answer:

Hi, I believe 1-0.25c is the correct answer.

Step-by-step explanation:

This is because 25% off would mean taking 25 off of a whole amount, which in this case would be one.

0.75c

Hope this helps ;)

Aha I'm failing so if you could help that would be great :D. Find the value of x in the triangle shown below.

Answers

Answer:

Step-by-step explanation:

p = ?

h = 10

b = 6

Now,

p2 = h2 - b2

p2 = ( 10)2 - (6)2

p2 = 100 - 36

p2 = 64

p = root under (64)

p = 8

X= 8, letter D and I hope it’s right

Simplify the expression. (1)/(2)(-(5)/(6)+(1)/(3))

Answers

Answer:

0.5

Step-by-step explanation:

The answer to that is 0.5 I am pretty sure

Enter your answer as a simplified fraction.

Answers

Answer:

1/3

Step-by-step explanation:

i dont know im guessing

Answer:

1 5/24 total gallons remain

Step-by-step explanation:

yellow: 4/3 - 3/4 = 16/12-9/12 = 7/12

green: 5/4 - 3/4 = 5/4-3/4 = 2/4

blue: 7/8 - 3/4 = 14/16-12/16 = 2/16

7/12 + 2/4 + 2/16 = 28/48 + 24/48 + 6/48 =

58/48 or 1 5/24

Help with both answers thanks.
And no links pls

Answers

Yo I don’t know if it is only me but your picture isn’t loading

Yea lol it's just gray and white there nothing there try again

$18.75 to $18.60 identify the percent of change as an increase or decrease . then find the percent of change round to the nearest tenth of a percent , if necessary

Answers

Answer:

0.8%

Step-by-step explanation:

There is a decrease in percentage by 0.8%.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

The given decimal numbers are $18.75 and $18.60.

We know that, percentage change = (Original price-New price)/Original price ×100

= (18.75-18.60)/18.75 ×100

= 0.15/18.75 ×100

= 0.008×100

= 0.8%

Therefore, there is a decrease in percentage by 0.8%.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ5

if the diameter of a disc is 50 ft, what will be the area of the disc?

Please help me on this.
i'm stuck on it.

Answers

Hey there! Your answer is:

1,963

Step-by-step explanation:

Please mark Brainliest<3

Yo I was stuck on this to but it is really simple it’s
1963

help quick please please

Answers

Pie time 7.06 squared
156.588
Answer: 156.59 after rounding to 2 DP

I think the answer is 156.59

On a scale drawing, the height of a tree is 3 inches. If the scale of the drawing is 1 in:50 ft , how tall is the tree?

Answers

Answer:

Step-by-step explanation:

Other Questions

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