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n200080 [17]
3 years ago
15

1. Sally said that when you add or subtract positive or negative decimals, you can change the order of the decimals and still ge

t the same answer. Use these decimals to answer the questions
Mathematics
1 answer:
Oduvanchick [21]3 years ago
7 0

can you type the decimals in the comments
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X + 3 =8<br> X- 5 =7 <br> Please someone help?
Sav [38]

Step-by-step explanation:

x+3=8

8-5=3 so x=5

7+5=12 / 12-7=5

12-5=7

8 0
3 years ago
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PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER PLS GIVE ME A STEP BY STEP EXPLANATION!!
motikmotik

<u>Given that</u> :

Diameter (d) = 18 cm

Pi (π) = 3.14

Radius (r) = d/2 = 18/2 = 9 cm

We know that volume of sphere is

Volume of Sphere = 4/3πr³

Volume = 4/3 × 3.14 × (9)³

Volume = 4/3 × 3.14 × 729

Volume = 4 × 3.14 × 243

Volume = 12.56 × 243

Volume = 3052.08

<u>Hence, the volume is 3052.08 cm³</u>

4 0
3 years ago
The area of a square in square feet is represented by z^(2)+12z+36. Find an expression for a side length of the square.
Gnoma [55]

Answer:

Side is equal to (z+6) feet.

Step-by-step explanation:

A square is a four sided polygon in which all sides are equal, diagonals are equal and each angle is equal to 90°

Area of a square = side × side

Area of a square =z^2+12z+36

Here, write 12z=6z+6z

Therefore,

Area of a square =z^2+6z+6z+36

=z(z+6)+6(z+6)

=(z+6)^2 square feet

So,

side × side =(z+6)^2

This implies side is equal to (z+6) feet.

5 0
3 years ago
What is the surface area of each solid pyramid? Round answers to the nearest square unit.
e-lub [12.9K]

Answer:

The total surface area is

57ft^2.

4 0
2 years ago
Find the value of x, rounded to the nearest tenth.<br> Correct answers only please..
Ratling [72]
Cos28 = 11/x
x = 11/cos28
x = 11 / 0.88294759
x = 12.46

Answer
C. 12.5 (nearest tenth)
8 0
3 years ago
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