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ANTONII [103]
3 years ago
11

What is -a'if a=-5?​

Mathematics
1 answer:
marta [7]3 years ago
8 0
A’ is 5. Just multiply -5 by -1 to get 5.
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The diagram below shows a square inside a regular octagon. The apothem of the octagon is 15.69 units. To the nearest square unit
Musya8 [376]

Answer:

C.  647 square units

Step-by-step explanation:

To find the shaded area, subtract the area of the unshaded square from the area of the octagon.

<u>Area of the octagon</u>

\textsf{Area of a regular polygon}=\dfrac{n\:l\:a}{2}

where:

  • n = number of sides
  • l = length of one side
  • a = apothem

Given:

  • n = 8
  • l = 13
  • a = 15.69

Substitute the given values into the formula and solve for A:

\implies \textsf{Area}=\sf \dfrac{8 \cdot 13 \cdot 15.69}{2}

\implies \textsf{Area}=\sf \dfrac{1631.76}{2}

\implies \textsf{Area}=\sf 815.88\:\:square \:units

<u>Area of the square</u>

\implies \textsf{Area}=\sf 13^2=169 \:\:square \:units

<u>Area of the shaded region</u>

= area of the octagon - area of the square

= 815.88 - 169

= 646.88

= 647 square units (nearest square unit)

3 0
2 years ago
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jake bought 5 pounds of candy he gave 3 pounds of candy away and he ate 10 ounces candy how many ounces of candy doues jake have
Novosadov [1.4K]

Answer:

22 onces

Step-by-step explanation:

16 ounces in a pound

5-3=2

2x16=32

32-10=22

5 0
3 years ago
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Kendra washes windows in an office building. She washes 2/5 of the windows on Monday. She washes 1/3 of the windows on Tuesday.
Svet_ta [14]
First, u find conman denominator which is 15 so 2/5=6/15 & 1/3=5/15, which adds up to 11/15, so the remaining fraction that kendrs has to wash is 4/15
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3 years ago
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What is 5x-(8x+9)+4.5x
AnnZ [28]
Simplify the brackets.
5x - 8x - 9 + 4.5x

Collect like terms
(5x - 8x + 4.5)-9

Simplify
1.5x - 9

Now give me your stuffed crust.
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3 years ago
62 is 90.5% of what number
ASHA 777 [7]
62=0.905•w
Solve the equation for w
8 0
3 years ago
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