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maxonik [38]
4 years ago
6

Can someone help me understand squares,cubes,and roots with example problems please

Mathematics
1 answer:
erastova [34]4 years ago
4 0

when someone says a number squared or cubed, or to the certain power, it means how many times you multiply the base number by itself that many times, for example

2²= 2 * 2

or 9³ = 9 x 9 x 9

a square root or cube root, is a harder to understand, but still somewhat simple, it basically means how many what number squared or cubed equals this number.

so for example the square root of 9 = 3 because 3 x 3=9

or cube roots for example ∛125= 5 because 5 x 5 x 5

So here is an example one for you. √81.

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CAN SOMEONE HELP ME ASAP I WILL GIVE BRAINILY, and show how you got the answer, please!!!!!! I really need help.
bija089 [108]

Answer:

<em>Assuming you want this rounded to the hundredths.</em>

6. x = 24.86

7. x = 4

8. x = 24.86

9. x = 12

10. x = 4

11. x = 20.57

Step-by-step explanation:

6. Because these angles are supplementary, they add up to 180 degrees. Using this, we can solve for x.

Step 1: Build your equation

3x + 5 + 4x + 1 = 180

Step 2: Combine like terms

7x + 6 = 180

Step 3: Subtract 6 from both sides of the equation.

7x = 174

Step 4: Divide the coefficient of x out.

x ≅ 24.68

7. Vertical Angles Theorem states that vertical angles are congruent. Now we can solve from there!

<em>(Note: There are two ways to solve this, but I picked the easier way)</em>

Step 1: Build your equation

3x + 5 = 4x + 1

Step 2: Collecting like terms on one side 1: Subtract 3x from both sides

5 = x + 1

Would you look at that! No coefficient on x. However, we need a sequel to fix the right side.

<em>(If you are wondering why there is no coefficient on x, the actual coefficient is 1. However, it is much cleaner to just ignore that.)</em>

Step 3: Collecting like terms on one side 2: Subtract 1 from both sides.

4 = x

Because equations don't care about silly human things like which terms are on which side, you can also arrange it like this:

x = 4

8. A linear pair of angles are adjacent angles formed by two intersecting lines. The measure of a linear pair of angles is 180 degrees. See #6 for details on how to solve this.

9. Complementary angles add up to 90 degrees. Similar to supplementary angles, this can be solved but setting the sum to 90 degrees.

Step 1: Build your equation.

3x + 5 + 4x + 1 = 90

Step 2: Combine like terms.

7x + 6 = 90

Step 3: Subtract 6 from both sides of the equation.

7x = 84

Step 4: Divide the coefficient of x from both sides.

x = 12

10. Because they are congruent, you can set the angles equal to eachother. Please view #7 for how to solve this.

11. Similiar to #6 and #9, we can set the sum to 150 degrees and solve from there.

Step 1: Build your equation.

3x + 5 + 4x + 1 = 150

Step 2: Combine like terms.

7x + 6 = 150

Step 3: Subtract 6 from both sides of the equation.

7x = 144

Step 4: Divide the coefficient of x from both sides.

x ≅ 20.57

There you have it! Wow, I haven't done algebra like that since 2019!

Hope I helped!

3 0
3 years ago
Factor 3x^3+3x^2+x+1
Nat2105 [25]
We can solve it like:
3x^3+3x^2+x+1= (3x^3+3x^2)+(x+1)=
3x^2(x+1)+(x+1)=
= (x+1)(3x^2+1)

Have a good day
6 0
4 years ago
Read 2 more answers
Find the GFC of 56 and 84. A factor tree for 84 is given
shepuryov [24]

Answer:

28

Step-by-step explanation:

5 0
3 years ago
Please HELP. ALSO WHY. 2 question. pLZZ
avanturin [10]

Answer:

1). Number of kids on the other side = 16

2). Brian took the time to each piece of pie = 20 seconds

Step-by-step explanation:

1). Let the number of kids on one side = x

  Then the number of kids on other side = 2x

  3 adults helped the side having number of kids = x, then the number of people on this side = x + 3

Since the total number of people on this side = 11

Then the equation will be,

x + 3 = 11

x = 11 - 3

x = 8

Then number of kids on the other side = 2x = 2×8

                                                                           = 16

2). By unitary method,

∵ Brian took the time to eat 6 pieces of the pie = 2 minutes

∴ Brian will take time to eat 1 piece of pie = \frac{2}{6} minutes

                                                                     = \frac{2}{6}\times 60 seconds

                                                                     = 20 seconds

6 0
3 years ago
PLS HURRY I HAVE 30 MIN
vampirchik [111]

Answer:

Circle.among all shapes with the same area, a circle has the shortest perimeter

8 0
3 years ago
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