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liraira [26]
3 years ago
13

The base of this regular right pyramid is a square. What is its surface area?

Mathematics
1 answer:
zubka84 [21]3 years ago
5 0

Answer:

○ A) 21 ft.²

Step-by-step explanation:

{a}^{2} + 2a  \sqrt{ \frac{ {a}^{2}}{4} + {h}^{2} } = S. A. \\  \\ {3}^{2} + 2(3) \sqrt{ \frac{ {3}^{2} }{4} +  {2}^{2}} = 24 \\  \\ 24 ≈ 21

I am joyous to assist you anytime.

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If w = -2 and v = -8, which of the following expressions shows the values correctly substituted in for the variables in the expr
Ahat [919]

Answer:

<em>(-2)2 - (-8) + 1</em>

Step-by-step explanation:

When you substitute values into an algebraic equation, you need to input the values exactly how they are given. "w" must go where there are "w"s, and "v" must go where the "v"s are, otherwise you will get an incorrect answer. All values must also carry over their signs--they are one unit--and must be inserted as such, which is why - (-8) is correct, but not - (8) or - 8. (This is because those two negatives will cancel each other out and become +8 when solving). The parenthesis around the values are important because they protect the original values of the variables, which is why (-2)2 is correct. In the case of (-2)2, it also signifies that they are "attached" by multiplication, and when solving would become -4. Without signifying that the variables are separate from the rest of the equation via the parenthesis, it becomes very easy to solve it incorrectly.

5 0
2 years ago
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What is (-8) x (-2/3)
Triss [41]

Answer:

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Step-by-step explanation:

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3 years ago
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mars1129 [50]

The inverse, converse and contrapositive of a statement are used to determine the true values of the statement

<h3>How to determine the inverse, converse and contrapositive</h3>

As a general rule, we have:

If a conditional statement is: If p , then q .

Then:

  • Inverse -> If not p , then not q .
  • Converse -> If q , then p .
  • Contrapositive -> If not q , then not p .

Using the above rule, we have:

<u>Statement 1</u>

  • Inverse: If a parallelogram does not have a right angle, then it is not a rectangle.
  • Converse: If a parallelogram is a rectangle, then it has a right angle.
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All three statements above are true

<u>Statement 2</u>

  • Inverse: If two angles of one triangle are not congruent to two angles of another, then the third angles are not congruent.
  • Converse: If the third angles of two triangle are congruent, then the two angles are congruent to two angles of another
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All three statements above are also true

Read more about conditional statements at:

brainly.com/question/11073037

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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