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Alekssandra [29.7K]
3 years ago
6

Need help thanks ---

Mathematics
1 answer:
Molodets [167]3 years ago
6 0

the answer is A

these are filler words so I can submit it haha

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PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
Zolol [24]

Answer:

Step-by-step explanation:

Triangle DEF is a right angle triangle.

From the given right angle triangle,

DE represents the hypotenuse of the right angle triangle.

With ∠E as the reference angle,

EF represents the adjacent side of the right angle triangle.

DF represents the opposite side of the right angle triangle.

To determine EF, we would apply

trigonometric ratio

Cos θ = opposite side/hypotenuse. Therefore,

Cos 49 = EF/8

EF = 8Cos49 = 8 × 0.6561

EF = 5.2488

Rounding to the nearest tenth, it becomes 5.2

3 0
3 years ago
A can in the shape of a right circular cylinder is required to have a volume of 500 cubic centimeters. The top and bottom are ma
borishaifa [10]

Answer:

The answer to the question is

The total cost C of the material as a function of the radius r of the cylinder is

0.6912·r² + 800/r Dollars.

Step-by-step explanation:

To solve the question, we note that

The area of the top and bottom combined  = 2·π·r²

The area of the sides = 2·π·r·h

and the volume = πr²h = 500 cm²

Therefore height = 500/(πr²)

Substituting the value of h into the area of the side we have

Area of the side = 2πr·500/(πr²) = 1000/r

Therefore total area of can = Area of top + Area of bottom + Area of side

Whereby the cost of the can = 0.11×Area of top +0.11×Area of bottom +0.8×Area of side

Which is equal to

0.11×2×π×r²+ 0.8×1000/r = 0.6912·r² + 800/r

The cost of the can is $(0.6912·r² + 800/r)

3 0
3 years ago
Find the area<br><br> AC = 8m, BD = 6m
grandymaker [24]

Answer:

24 m²

Step-by-step explanation:

The area of a rhombus is the product of the two diagonals over 2

  • A= (8*6)/2 = 24 m²

5 0
3 years ago
Exponential form of 16807
mylen [45]
<span>It is: 7 to the power of 5 = 16807</span>
8 0
3 years ago
Read 2 more answers
What is the standard form of 0.0005?
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5 * 10 raise to power of - 4

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3 years ago
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