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
GrogVix [38]
2 years ago
7

Witch 2 numbers are 4 units away from zero on a number line

Mathematics
1 answer:
Liula [17]2 years ago
6 0

Answer:

it depends which way youre going, but 4 and -4 work.

Step-by-step explanation:

You might be interested in
4th grade math help & explain please
ohaa [14]

Nothing on the rectangle is shaded, unless the camera quality is poor.

0/12

7 0
3 years ago
Determine the mass of a solid steel ball that has a diameter of 10 cm. The density of pure steel is 8.09 g/cm3
Basile [38]

Answer:

<em>The mass of the steel ball is 4,235.9 gr</em>

Step-by-step explanation:

<u>Density</u>

The density ρ of a substance is a measure of its mass per unit volume:

\displaystyle \rho=\frac{m}{V}

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

m=\rho.V

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3

The radius is half the diameter: r= 10/2 = 5 cm. Thus:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot 5^3

Calculating:

V=523.6\ cm^3

The mass is:

m=8.09 gr/cm^3 \cdot 523.6\ cm^3

m=4,235.9 gr

The mass of the steel ball is 4,235.9 gr

4 0
3 years ago
If Paul saves $3.00 every week for twelve weeks and then buys a CD for $15.00 plus 9% tax, how much money will he have left?
pochemuha

Answer:

18.90

Step-by-step explanation:

3x12=36

36-15=21

21 x 0.9

8 0
3 years ago
Read 2 more answers
*) Eric works at the deli on weekends to earn extra money. He makes $10 per hour making
algol13

Answer:

A=\dfrac{1}{2}(10s+14d)

Step-by-step explanation:

Given that,

He makes $10 per hour making  sandwiches, and $14 per hour delivering orders.

Let there are s sandwiches and d is delivering orders.

Eric puts half of his total earnings in a  savings account for college.

The expression that represents the total amount of money Eric saves for working s hours making sandwiches and d hours delivering orders.

A=\dfrac{1}{2}(10s+14d)

Hence, this is the required solution.

8 0
3 years ago
12) Twenty cubic feet of marble can weigh 3400 pounds, plus or minus 100
andrezito [222]

Answer:

Let's suppose that one cubic foot of marble is x.

20x = 3400

But because the weight has a range of +-100, then 20x is between 3300 and 3500. Write it like this:

3300<20x<3500

Divide by 20:

165<x<175

The meaning of this is that one cubic foot of marble weight between 165 and 175 pounds

4 0
3 years ago
Other questions:
  • Bella is making button barrettes. She allows each of her friends to reach into her bag of buttons and randomly select a color. T
    12·2 answers
  • True or false all right triangle aré congruent
    10·2 answers
  • Which of the following is the correct graph of the solution to the inequality −13 &gt; −5x + 2 &gt; −28? number line with open d
    14·2 answers
  • Which of the following uses the distributive property correctly?
    10·1 answer
  • Which of the following is equivalent to the expression below?
    13·2 answers
  • True or False: Using the formulas A = (bh)/2 and A = 1/2(bh) will get you two completely DIFFERENT answers.
    12·2 answers
  • Write an expression for the sequence of operations described below .
    5·1 answer
  • Three fourths of the offspring of two fruit flies have short wings, while the rest have wild-type wings . In a batch of offsprin
    12·1 answer
  • Which equation has no real solutions?
    12·1 answer
  • What are the two steps to solving a proportion
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!