3 years ago

Help please with question 7!!

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

6 0

Look at the picture I inserted for the answer, hopes this helps

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Answer true or false for them all thanks

denpristay [2]

First 2 are true and others are false

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3 years ago

The figure shows an aerial view of a playground. If David runs around the field three times, he covers a distance of_____yards.

Andrew [12]

For this case, what we must do is find three times the perimeter of the figure.

The length of the arch is given by:

$s = r * \alpha$

Where,

r: radius of the circle

alpha: central angle in radians

We have then:

$s = 35 * (\frac{280}{180}) * \pi\\s = 171 yards$

Then, the perimeter of the figure is:

$P = 3 * (171 + 45)\\P = 648 yards$

Answer:

If David runs around the field three times, he covers a distance of 648 yards.

5 0

4 years ago

Please help!! I only have 30 minutes left!! Given that x and y are positive integers and (x·2)+x(2^2)+(y·2^3)+(y·2^4)=42, what i

Viktor [21]

Answer:

xy = 3

Step-by-step explanation:

The expression to be evaluated is:

$2\cdot x +4\cdot x + 8\cdot y + 16\cdot y = 42$

$6\cdot x + 24\cdot y = 42$

By some algebraic handling:

$6\cdot (x + 4\cdot y) = 42$

Where:

$x+4\cdot y = 7$

There is one possible solution:

x = 3, y = 1

And consequently,

xy = 3

4 0

3 years ago

Which of the following is equal to the expression listed below?

lara31 [8.8K]

Answer:

Step-by-step explanation:

good luck. hope this helps

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3 years ago

If the sinA = 3/5 and the cosA = 4/5 , then what is tan A? a: 3/4 b: 1 c: 4/3

AysviL [449]

The answer should be A

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3 years ago

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