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Cloud [144]
3 years ago
14

1)2{18-(5+3^2)÷7] 2) 1+(-2-5)^2+-3*4PEMDAS​

Mathematics
1 answer:
stira [4]3 years ago
3 0

Answer:

I think these are the right answers. The answer to one is 32. The answer to two is 38.

1: 2[18-(5+3^2)/7]

2[18-(5+9)/7]

2[18-14/7]

2[18-2]

2 times 16 = 32

2: I used a calculator for this one.

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A spherical paintball measures 1.5 centimeters in diameter. Approximately how much paint is in it?
algol [13]

In this problem, you are asked to compute for the volume of the spherical paintball. The formula in computing the volume of the sphere is:

V = 4/3 (pi) r^2

Where r = the radius of the sphere

Since the given measurement is in diameter, you need to compute the radius of the sphere. The radius of the sphere is half its diameter. Therefore, the radius of the sphere is 0.75 cm (1.5 cm / 2).

Substituting the radius to the formula and using 3.14 as the value of pi:

V = 4/3(3.14)(0.75)^2

V = 2.355 cm^3 or 2.36 cubic centimeters (note that cubic centimeter is equal to mL)

Therefore, there are approximately 2.36 mL of paint in the paintball.

 

3 0
3 years ago
What is the coefficient in the expression 15y + 5
dalvyx [7]

Answer:

15

Step-by-step explanation:

If helpful, please give 5 star, thanks, and brainliest!

8 0
2 years ago
Read 2 more answers
Help <br> Help<br> Help<br> Help<br> Help<br> Help
puteri [66]
You’re right, it’s just 100/25.
3 0
3 years ago
The regular price of an aquarium is $70 and the sale price is $60. what is the percent of discount? (percent of change!!)
Naddik [55]
Let's take the difference between the old and new (70 - 60) to get 10 and then divide this by the old (70) amount...10/70 = .142857 convert to a percent by moving the decimal 2 spaces to the right...  14.29 %
3 0
3 years ago
If the circle below is cut from the square of plywood below, how many square inches of plywood would be left over? Use π = 3.14,
Elis [28]

Answer:

86in²

Step-by-step explanation:

Find the complete question attached

Area of the circle = πr²

Area of the square = L²

Length of the side of the square

r is the radius of the circle

r = L/2 = 20/2 =10in

Given

Length of the side of the circle = 20in

Area of the square = 20²

Area of the square = 400in²

Area of the circle =π(10)²

Area of the circle = 3.14(100)

Area of the circle= 314in²

Amount of plywood left over = 400in²-314in² = 86in²

8 0
3 years ago
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