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3 years ago

Help!! I will mark you brainliest for the correct answer. Please help!!!

Mathematics

1 answer:

Licemer1 [7]3 years ago

6 0

To find the interior of Y

Y = 180 - 135

Y = 45

The interior of Z is 49 because the angles are mirrored to each other

then, to find x,

X = 180 - 45 - 49

X = 86

so your answer should be 86.

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An athlete training for the Olympics women's each lap for a 4 lap race in the following times: 54.73, 54.56, and 54.54 seconds.

natita [175]

Answer:

The total time it takes her to swim the four laps is 3.65 minutes.

Step-by-step explanation:

Here, according to the given data:

The time taken to complete 1st lap = 54.73 seconds

The time taken to complete 2nd lap = 54.56 seconds

The time taken to complete 3rd lap = 54.32 seconds

The time taken to complete 4th lap = 54.54 seconds

Now, the TOTAL TIME taken to swim all 4 laps = SUM OF ALL 4 TIMES

= (54.73 + 54.56 + 54.32 + 54.54) seconds

= 219.35 Seconds

Now, 60 seconds = 1 minute

⇒ 1 seconds = 1/60 minute

⇒219.35 seconds = 219.27 x (1/60) minutes = 3.6558 minutes

Hence, the total time it takes her to swim the four laps is 3.65 minutes.

4 0

3 years ago

A rectangle has a perimeter of 26 feet. Twice its length (l) is one foot more than three times its width (w). What is the length

dimaraw [331]

Answer:

C. 8

Step-by-step explanation:

Divide the length by 2, then subtract by 1, then divide again by 3. multiply by 2 and add the original multiplied by 2 and hope its 26.

8 0

3 years ago

You roll a fair 6-sided die. What is the probability of rolling an even number or a number less than 4?

alukav5142 [94]

Is it 5/6? I remember i took a quiz with this kind of question but I'm not sure

4 0

3 years ago

Which expression represents the ratio of the difference of the two means to Sidney's mean absolute deviation

prohojiy [21]

Answer:

The ratio of the difference of the two means to Sidney's mean absolute deviation = $\frac{4}{3.28}$ = 1.2195

Step-by-step explanation:

P.S - The exact question is -

Given - The means and mean absolute deviations of Sidney’s and Phil’s grades are shown in the table below.

Sidney’s Grades Phil’s Grades

Mean 82 78

Mean Absolute Deviation 3.28 3.96

To find - Which expression represents the ratio of the difference of the two means to Sidney’s mean absolute deviation?

Proof -

Given that Mean of Sidney Grades = 82

Mean of Phil's Grades = 78

So,

The difference of two means = 82 - 78 = 4

Also,

Given, Mean Absolute Deviation of Sydney = 3.28

Now,

The ratio of the difference of the two means to Sidney's mean absolute deviation = $\frac{4}{3.28}$ = 1.2195

4 0

3 years ago

Don’t mind the sentence that starts with select

ddd [48]

Answer: $60

Step-by-step explanation:

x=4

y=20

$\frac{20}{4} =5$

x=8

y=40

$\frac{40}{8} =5$

Therefore,

x=12

y=?

x*5=y

12*5=y

60=y

7 0

4 years ago