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Cerrena [4.2K]
3 years ago
9

Can someone tell me if this is right or not?

Mathematics
2 answers:
Tomtit [17]3 years ago
7 0

Answer:

You right

Step-by-step explanation:

Evgen [1.6K]3 years ago
4 0

Answer:

i think ur good

Step-by-step explanation:

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a block of wood is a cube whose side is x in long, you cut off a 1 inch thick peice from the entire right side . then you cut of
Neporo4naja [7]
The answer would be C 14x14x14.
3 0
3 years ago
3(3^4)(3^-3) what expression is equivalent to
PolarNik [594]

Answer:

9

Step-by-step explanation:

Firstly you can simplify the exponents shown below:

3({3}^{4} )( {3}^{ - 3} ) \\ 3({3}^{1} ) \\ 3(3) \\ 9

Simply add exponents when multiplying like shown above.

3 0
3 years ago
If using the method of completing the square to solve the quadratic equation
Assoli18 [71]

Answer:

The number would have to be added is 2

Step-by-step explanation:

To find the form of the completing square of the quadratic function:

  • Divide the coefficient of x by 2
  • Square the quotient
  • Subtract the numerical term from the square of the quotient

Let us do these steps with our question

∵ x² - 2x - 1 = 0

→ Divide the coefficient of x by 2

∵ The coefficient of x is -2

∴ -2 ÷ 2 = -1

→ Square the -1

∵ (-1)² = 1

→ Subtract the numerical term from 1

∵ The numerical term = -1

∵ 1 - (-1) = 1 + 1 = 2

∴ We must add 2 to -1 to get 1

→ (x² - 2x - 1 + 2) - 2 = 0

→ (x² - 2x + 1) = 2

→ (x - 1)² = 2

The number would have to be added is 2

4 0
3 years ago
2. Samuel used clay to make a diorama of the pyramids in Ancient Egypt. He made two triangular pyramids and three rectangular py
zalisa [80]

Answer:

124.16 cubic meter of clay will be used to create all the pyramids

Step-by-step explanation:

The remaining part of the question is given in the attached file

Solution

The total clay used is equal to the sum of volumes of two triangular and three rectangular pyramids.

For Rectangular Pyramid,

Volume of three rectangular pyramids

3 * \frac{BH}{3} = BH

Substituting the given values in above equation, we get -

15.5 * 5 = 77.5 cubic centimeter

For triangular Pyramid,

Volume of two  triangular pyramids

2 * \frac{BH}{3}\\2 * \frac{10 * 7}{3}

46.67  cubic centimeter

Total clay used = Volume of 3 rectangular pyramid + volume of 2 triangular pyramid = 77.7 + 46.67 = 124.16 Cubic centimeter

5 0
3 years ago
Which two expressions are used to solve this problem?
kari74 [83]
Your first equation would be (97-25)/8
Then, your equation is 72/8
The answers are D and B!

Hope this helps!
4 0
4 years ago
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