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Vlad [161]
3 years ago
15

Ur so worth it...ok now enough about u...help plz

Mathematics
1 answer:
sasho [114]3 years ago
4 0

Answer:

20. 13 cm

21. 12 cm

Step-by-step explanation:

20. isosceles means two sides are the same length, so you take the ten off the perimeter to get 26 remaining cm (36 -10) and you then divide that by two to get both sides of 13 cm (26 / 2)

21. because you know that if you split the triangle down the middle you get a right triangle and you can use a^2+b^2=c^2 to find the height, so we take the one side of 13 cm and half of the third side, which is 5, and you can find your answer (a^2 + 5^2 = 13^2   ---> a^2 + 25 = 169 ---> a^2 = 144 ---> a = 12)

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What is the equivalent decimal to this fraction? 10/45 0.2 0.222222222... 0.232323232323... 0.181818181818...​
Ivan

Factorize the numerator and denominator, then simplify:

10/45 = (2×5)/(9×5) = 2/9

Now,

1/9 = 1/10 + 1/90

1/90 = 1/10 × 1/9 = 1/10 × (1/10 + 1/90) = 1/100 + 1/900

1/900 = 1/100 × 1/9 = 1/100 × (1/10 + 1/90) = 1/1000 + 1/9000

and so on, which is to say

1/9 = 1/10 + 1/100 + 1/1000 + …

or

1/9 = 0.111…

so that multiplying both sides by 2 gives

2/9 = 0.222…

5 0
2 years ago
ASAP PLEASE HELP!! 50 POINTS
svetlana [45]

Answer/Step-by-step explanation:

Total Distance = 3Ft

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b) Write an equation of a function that models the buoy with x=0 at its highest point.​

y= 1.5 cos ( \frac{\pi }{5} x)

3 0
3 years ago
Fwee points also can somebody please answer my last 2 question pwease ♡
ladessa [460]

Why thank u very much

4 0
3 years ago
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Danielle wants to buy a magazine for $11. The sales tax is 5%. How much would the total cost of the magazine be with tax include
dimulka [17.4K]

Answer:

$11.55

Step-by-step explanation:

If we convert the percentage to 1.05 and multiply it by 11, it's 11.55.

7 0
3 years ago
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strojnjashka [21]
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7 0
4 years ago
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