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2 years ago

Work out the size of the interior angle of a regular 16-sided polygon

Mathematics

2 answers:

sattari [20]2 years ago

6 0

Answer:

157.5°

Step-by-step explanation:

Total size of interior angles=(2n-4)90°

(2x16-4)90= 2520

size of one interior angle= (2n-4)90°/n

2520/16

Answer= 157.5°

NB n is the number of sides

Gekata [30.6K]2 years ago

3 0

157.5 is the right answer lmk if I’m wrong

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Find the slope of the line

alukav5142 [94]

Answer:

-4/3

Step-by-step explanation:

y2 - y1 / x2 - x1

-9 - (-1) / 0 - (-6)

-4/3

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2 years ago

*please help and explain how you got the answer!*

stepan [7]

Answer:

Step-by-step explanation:

A= (4-1)^3

simplify A to be 3^3

Which gives us 27

B=(2*3)^2-9

simplify B

first multiply the 2 numbers in paranthesis which gives us 6. raise it to the power of 2 which is 39 and then subtract 9. Gives us 27.

C=15^3*4-12

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2 years ago

Puppy B weighs 8 pounds which is about 75% of its adult weight what will be the adult weight of puppy B

seropon [69]

Answer:

Step-by-step explanation:

Let x be the adult weight of puppy B

75% of x =8 pounds

$\frac{75}{100}*x=8\\\\x=\frac{8*100}{75}\\\\x=\frac{8*4}{3}\\\\=\frac{32}{3}\\\\x=10.67pounds$

5 0

2 years ago

Ali runs five days a week at the local park's nature trail. The circular trail is 440 yards long. Each day that Ali runs, she ru

SpyIntel [72]

Answer:

15 miles

Step-by-step explanation:

12 * 440 = 5280 (yards every day)

5280 * 5 = 26400 (yards per week)

26400 *0.000568182 = 15 miles

8 0

2 years ago

Suppose a research firm conducted a survey to determine the average amount of money steady smokers spend on cigarettes during a

olchik [2.2K]

Answer:

option (b) 0.0228

Step-by-step explanation:

Data provided in the question:

Sample size, n = 100

Sample mean, μ = $20

Standard deviation, s = $5

Confidence interval = between $19 and $21

Now,

Confidence interval = μ ± $z\frac{s}{\sqrt n}$

thus,

Upper limit of the Confidence interval = μ + $z\frac{s}{\sqrt n}$

$21 = $20 + $z\frac{5}{\sqrt{100}}$

z = 2

Now,

P(z = 2) = 0.02275 [From standard z vs p value table]

P(z = 2) ≈ 0.0228

Hence,

the correct answer is option (b) 0.0228

3 0

2 years ago