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MariettaO [177]
3 years ago
8

Explain how you could determine whether a calculator correctly performs the order of operations

Mathematics
1 answer:
kaheart [24]3 years ago
6 0
By using Guess and check. Use multiple calculators to find out. Buy a quality calculator
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A rectangle has an area of 717.8m squared. One of the sides is 7.4m in length. What is the perimeter of the rectangle btw it’s n
vlabodo [156]

Answer:

I think it's 208.8m

Step-by-step explanation:

717.8 divided by 7.4 = 97. 97 x 2 + 7.4 x 2 =208.8m

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2 years ago
4.<br> What is the domain of the graph shown below?
ANEK [815]

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-6 < x ≤ 6

Step-by-step explanation:

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3 years ago
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If f(x) =1/4x+3, what is the equation for f^-1 (x)?
ser-zykov [4K]
4x - 12

You can get this by switch the f(x) and the x and then solving for the new f(x) 
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3 years ago
A sentence For the word Sensitive pls
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The person sitting next to me was very sensitive.
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3 years ago
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A pole 5 feet tall is used to support a guy wire for a tower, which runs from the tower to a metal stake in the ground. After pl
sammy [17]

The length of the guy's wire to the nearest foot is 89 feet.

The situation forms a right-angled triangle.

<h3>Properties of a right angle triangle:</h3>
  • A right-angle triangle has one angle of 90 degrees.
  • The sides can be found using the Pythagoras theorem.
  • The angles can be found using trigonometric ratios.

The hypotenuse of the triangle is the length of the wire.

let's use the smaller triangle to find the angle opposite the tower. Therefore,

tan ∅ = opposite / adjacent

tan ∅ =  5 / 2

∅ = tan⁻¹ 2.5

∅ = 68.1985905136

∅ = 68.20°

Therefore,

cos 68.20 = adjacent / hypotenuse

cos 68.20 = 33 / hypotenuse

hypotenuse = 33 / cos 68.20

hypotenuse = 88.8606843161

Therefore,

length of wire ≈ 89 feet.

learn more on triangles here; brainly.com/question/25762788?referrer=searchResults

4 0
2 years ago
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