MATHEMATICS MIDDLE SCHOOL

What is the volume of a sphere with a diameter of 4 meters? (Use 3.14 for π.) a.18.84 m^3

b.100.48 m^3

c.33.49 m^3

d.25.12 m^3

Answers

Answer 1
Answer:

Answer:

c.33.49 m^3

Step-by-step explanation:

Diameter  = 4 meters

Radius = 4/2 = 2 meters.

Volume of sphere = (4/3)πr³

     = (4/3)* 3.14 * 2 * 2 * 2

      = (4 *  3.14 * 2 * 2 *2 ) / 3  = 100.48/3

      = 33.49 m³

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303 is what percent of 600?explain
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What is 4 times 4 over 5

Answers

(4*4)/(5)=(16)/(5) Then you divide the numerator(top) by the denominator(bottom). 16÷5=3 (1)/(5) Your answer is 3(1)/(5)
ok so if u change 4 into an improper fraction,you can work out the problem.so 4 times 4/5=4/1 times 4/5=16/5=3 1/5

If you are given the measurements of two sides of a triangle, what will be true about the triangles you make?

Answers

Answer:

they are congruent

Step-by-step explanation:

we can prove triangles congruent by sss

if we know 2 sides are congruent, the third must be congruent to the corresponding side as well (the sides have to match up)
The answer is a congruent

Two stores sell the same computer for the same original price. Store A advertises that the computer is on sale for 25% off the original price. Store B advertises that it is reducing the computer’s price by $180. When Brittany compares the sale prices of the computer in both stores, she concludes that the sale prices are equal.Which equation models this situation?


Let p represent the computer’s original price.

A. 0.25p = p – 180
B. 0.75p = p + 180
C. 0.25(p – 180) = p
D. 0.75p = p − 180

Answers

We are required to find equation which compare the price of computer in both stores.

The equation that represents the expression is 0.75p = p - 180 and the value of the computer's original price is $720

Let

p = the computer’s original price.

Store A = 25% off the original price.

= p - (25% of p)

= p - (25/100 × p)

= p - (0.25 × p)

= p - 0.25p

= 0.75p

Store B = p - 180

The equation:

Store A = store B

0.75p = p - 180

0.75p - p = -180

-0.25p = -180

divide both sides by -0.25

p = -180 / -0.25

p = $720

Read more:

brainly.com/question/1815531

Answer:

d

Step-by-step explanation:

Solve this system of equations: 2x+y=11 y=x-1

Please explain how you got it and try to explain your steps!

Answers

Use the substitution method to solve. 

2x+y=11
y=x-1

We have the value for y, so put it in the first equation.

2x + x - 1 = 11
2x + x = 3x
3x - 1 = 11
      + 1    +1

3x = 12
x = 4

Now solve for y 

y=x-1
y = 4 - 1
y = 3

Answer: y = 3 and x = 4

Which of the following is an expression for “doubling a number N and dividing by 3” ?A)2+n/3
B)2n/3
C)n2/3
D)2/3n

Answers

1. Doubling a number means a number times 2, we don’t know that number so it’s considered 2n
1(in short words) n is a variable. N•2 = 2n.
2. Divide 2n by 3. This would mean 2n/3

It could be B or C HOWEVER the most formal way is B.
We always want the coefficient in front of the variable. You will see it in the future. Thanks to the multiplication property of equality, B & C will produce the same number. For example let n= 1

2•1/3= 2/3 ; this is with equation B
1•2/3= 2/3; this is with equation C

If your looking for two answers put B & C
If your looking for one answer put B
If it doesn’t say, then I’d recommend to be B .

Answer:

B or C

Step-by-step explanation:

Since the communitive property of multiplication states that A * B = B * A...

2n = n2.

2n is doubling n and /3 is dividing that number by 3.

What is the circumference of the following circle? if r= 4

Answers

Answer:

C≈25.13

Step-by-step explanation:

C≈2 x 4 x 3.14
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