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3 years ago

A mirror frame in the shape of an oval is shown below. The ends of the frame form semicircles:

Mathematics

2 answers:

vredina [299]3 years ago

7 0

Answer:

the answer should be b. 259.56 inches because first of all remember the word perimeter that is adding all up the sides of a figures and remember the formula for the cirmuference is c=TTd and first of all you add 27+27 getting an answer of 54 so when you get that multiply 3.14 times 54 getting an answer of 169.56 and then you add 60+60 getting an answer of 120 because these sides are congruent meaning they are the same or have the same length and finally the last part is adding your answers which is 169.56 and 120 getting an answer of 289.56 so b is the correct and have a great day.

Step-by-step explanation:

PSYCHO15rus [73]3 years ago

4 0

Should be 204.78. I don’t want to explain what 2pir is but I just did it and I got the exact answer of D if I sub 3.14 for pi on my graphing calculator

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A fountain launches a stream of water directly out of a pool at a vertical speed of 48 feet per second. The water shoots up and

Alla [95]

-16 hope this helped you :)

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4 years ago

Which of the following is NOT an observation about critical values? Choose the correct answer below. A. The number is a critica

Bess [88]

The correct options are;

A. The number z_α/2 is a critical value that corresponds to an area of 1 − α/2 to its left.

B. The number z_α/2 is a critical value that is a z score with the property that

it separates an area of α/2 in the right tail of the standard normal distribution.

C. A critical value is the number on the borderline separating sample statistics that are likely to occur from those that are unlikely to occur.

D. A critical value is the area in the right-tail region of the standard normal curve.

Answer:

Option D: A critical value is the area in the right - tail region of the standard normal curve.

Step-by-step explanation:

A critical value is defined as the line on a graph that makes that graph split into sections.

Now, either one or two of the sections split will fall into the “rejection region“.

So, if the test value falls into the rejection region, it means we will reject the null hypothesis.

Looking at the options given, options A, B & C are possible observations that we could deduce about critical values based on the definition given above.

Option D is not an observation because the critical value is what denotes the z-score with an area of alpha in the right tail region

5 0

3 years ago

56=38+y pls help me because I will take one

wlad13 [49]

Answer:

18 =y

Step-by-step explanation:

56=38+y

Subtract 38 from each side

56-38=38-38+y

18 = y

8 0

4 years ago

geometry- please help. like seriously if u know how to do it, it would help me so much and i’d mark u brainliest

Paraphin [41]

Answer:

the arc length is 555.17 cm

Step-by-step explanation:

The equation to solve for the arc length is: s = rΘ, where r represents the radios and the Θ represents radians. In order to solve this you need to convert degrees into radians with the formula: radians = degrees ·

You want to find the distance the golf club travels when the golfer swings the club.

First you need to subtract 25° from 360°

360° - 25° = 335°

now you need to convert 335° into radians

radians = degrees ·

radians = 335° · you multiply 335° by

radians = 335/180 then you simplify

radians = 67/36

335° = 67 $\pi$ /36

Now we plug everything we know into the equation s = rΘ

s = rΘ

s = 95 (67 $\pi$ /36) first multiply 67 by 3.14

s = 95 (210.38/36) divide 210.38 by 36

s = 95 (5.843888889) and multiply 95 by 5.843888889

s = 555.1694444 *remember to simplify to the nearest hundredth

s = 555.17 cm

hope this helps! if u have any questions, let me know!

5 0

3 years ago

What are rational numbers

Tema [17]

A rational number<span> is a </span>number<span> that can be written as a ratio.</span>

5 0

4 years ago

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