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3 years ago

PLEASE HELP & SHOW WORK , ITS URGENT

Mathematics

2 answers:

frosja888 [35]3 years ago

8 0

Answer:

I haven't gone this through yet but Ima help as much as possible. I know for sure you need to use the Area formula of Octagon and Perimeter and substitute the values. Once you substitute you gonna solve it like any other equation. I hope I helped ~

lara31 [8.8K]3 years ago

6 0

Answer:

D. 80 ft

Step-by-step explanation:

substitute the known values into the equation for area

a = 5

area = 200

$200=(5*P)/2$

multiply both sides by 2 which gives you

$400=5*P$

then divide both sides by 5 to give you

$80 = P$

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WILL MARK BRAINLIEST ASAP!

musickatia [10]

Answer:

D -24/25

Step-by-step explanation:

sin(2x) = 2sin(x)cos(x)

cos(x) = ⅘

sin²(x) = 1 - cos²(x) = 1 - (⅘)²

sin²(x) = 9/25

sin(x) = -⅗

(Because 4th quadrant)

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= -24/25

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3 years ago

You roll a fair 666-sided die. What is \text{P(roll greater than 4})P(roll greater than 4)P, left parenthesis, r, o, l, l, space

enyata [817]

Answer:

0.5

Step-by-step explanation:

I found this out because I am smart

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3 years ago

Need this please!!! Graph Y=-5x-2!!! Thanks. :-)

Andreyy89

Graph the line using the slope and y-intercept, or two points.

Slope= -5

y- intercept= (0,2)

The answer has two points (0,2) and (1,-3) place them and then make a line going left through them.

7 0

3 years ago

Which method would prove the quadrilateral is a parallelogram?

Maurinko [17]

Answer:

Answer: Each pair of opposite sides has the same measure. Therefore, they are congruent. If both pairs of opposite sides of a quadrilateral are congruent, the quadrilateral is a parallelogram.

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3 years ago

Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. The mean time is 1

Dahasolnce [82]

Answer:

<h3>Option c) $H_a:\mu$ is correct</h3><h3>The alternate hypothesis for the significance test is $H_a:\mu$ </h3>

Step-by-step explanation:

The alternate hypothesis use the sumbol for the population value

Let p be the proportion , Mean be $\mu$ and stadard deviation be $\sigma$

The null hypothesis states that population value is equal to the value mentioned in the given claim.

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The alternate hypothesis for the significance test states that the opposite of the null hypothesis(based on the claim )

∴ $H_a:\mu$

The symbol "<" because we want to test if the maze is completed faster and thus if the time has decreased.

<h3>∴ option c) $H_a:\mu$ is correct.</h3>

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3 years ago