1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
levacccp [35]
3 years ago
11

A lead ball weighs 326 grams. Find the radius of the ball to the nearest tenth of a centimeter.

Mathematics
1 answer:
rjkz [21]3 years ago
5 0

Answer:

1.9cm

Step-by-step explanation:

The density d of a material is related to its mass m and volume V as follows;

d = \frac{m}{V}             ------------------(i)

The material in question here is the lead ball.

Now, from known experiment;

the density of lead is <em>11.34g/cm³</em>

From the question, the weight/mass of the lead ball is <em>326g</em>

Substitute these values into equation (i) as follows;

11.34 = \frac{326}{V}

V = \frac{326}{11.34}

V = 28.75cm³

Now, since the ball is of course spherical, we can get the radius by using the following relation from the volume of a sphere;

V = \frac{4}{3} \pi r^3          [V = volume, r = radius]

V = 28.75cm³

=> 28.75 = \frac{4}{3} \pi r^3

=> 3 x 28.75 = 4 π r³

=> 86.25 = 4 π r³

=> 21.5625 = π r³      [Take π = 3.142]

=> 21.5625 = (3.142) r³      [divide both sides by 3.142]

=> 6.86 = r³              [Take the cube root of both sides]

=> ∛6.86 = ∛r³

=> 1.90 = r

Therefore, the radius is 1.9cm to the nearest tenth

You might be interested in
Use this CAS to divide (6x3+3x−5)3 by 3x3+2.
Oksanka [162]

Answer:

Remainder : 3x-9

The leading coefficient of the remainder is 3

Step-by-step explanation:

3 0
3 years ago
PLEASE ANSWER !
ivanzaharov [21]

Answer:I think no, because 25+35+45=150. 150x3=450

Maybe, for 4 months he'd have enough. So, 150x4=600. So Jamal would have some extra money!

Step-by-step explanation:

8 0
3 years ago
On the photo /picture
asambeis [7]

We need to compute the diagonal of yhe square.

d²=7²+7²=49×2cm²

d=7×sqrt(2)=7×1.41=9.87cm.

The diagonal we just computed is the diameter of the circle that contains the square.

Since d=9.87 < 11, then indeed, the square fits inside the circle, without touching it.

6 0
3 years ago
A sweatshirt costs $35. Find the total cost if the sales tax is 7.75%.
tensa zangetsu [6.8K]

Answer:

37.7125

Step-by-step explanation:

35 * 1.0775

4 0
3 years ago
Find the value of x. *<br> I think I’m a little off
DiKsa [7]

Answer:

x = 44

Step-by-step explanation:

3x - 5 is complementary to y° so their sum is 180°

The angle with measure 127° is also complementary with y°

127 + y = 180

y = 53°

53 + 3x - 5 = 180

3x + 48 = 180

3x = 132

x = 44

6 0
3 years ago
Other questions:
  • What is 5.96 as a fraction
    7·1 answer
  • If the domain of a function f is {x|0≤x≤7} and the domain of a function g is {x|-2≤x≤5}, then the domain of the sum of the funct
    13·1 answer
  • figure 1 is dillated to get figure 2 what is the scale factor? enter your answer in simplest form in the box
    7·1 answer
  • Use the figure shown to find the missing lengths of the triangle.
    8·1 answer
  • 6k+(3•10-8)=(3•3)k+22
    15·1 answer
  • What does a persuasive visual designed to make an argument refer to a. visual rhetoric b. logos c. pathos
    5·2 answers
  • Tickets to a play cost $8 each . Write an expression that gives the ticket cost in dollars for a group of girls and boys
    9·1 answer
  • HELPPPP SOMEONE I need help
    11·2 answers
  • Simplify: 2m – 6 ≤ 18.
    15·2 answers
  • Pls help!!! I WILL GIVE THE FIRST GOOD ANSWER BRAINLIEST!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!