4 years ago

20 POINTS!!! PLZ HELP NOT HARD

Mathematics

2 answers:

bezimeni [28]4 years ago

4 0

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Tju [1.3M]4 years ago

3 0

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A, B & C form a triangle where ∠ BAC = 90°. AB = 13.5 mm and CA = 3.2 mm. Find the length of BC, giving your answer rounded

adelina 88 [10]

Answer:

13.9

Step-by-step explanation:

Use Pythagorean Theorem:

Both of the lengths given are the legs,

13.5^2 + 3.2^2 = c^2

182.25 + 10.24 = c^2

192.49 = c^2

13.87 = c

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3 years ago

Cos(2x) - 3cos(x) + 2= 0 ??

alexandr1967 [171]

Ignore above
your equation is 2(cosx)^2-3cosx+1=0
use quadratic formula to get results
you will end up with
cosx=1 or cosx=1/2
so, x=0 or x=pi/3

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4 years ago

162 WATER BOTTLES IN 9 CASES =

4vir4ik [10]

Assuming this question is trying to enquire as to how many bottle of water there are in each case, you simply need to divide 162 by 9 to find the answer, which is that there are 18 bottles of water in each case.

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3 years ago

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6) Evaluate 3/4x if X = -1/4

marysya [2.9K]

Answer: $-\frac{3}{16}$

Step-by-step explanation:

$\frac{3}{4}(-\frac{1}{4} )$

multiply the numberator and denominator:

3*-1 = -3

and

4*4 = 16 so,

$-\frac{3}{16}$ is the answer

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2 years ago

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A bag of 8 apples costs $2.28. What is the cost of one apple (Show Work)

ASHA 777 [7]

Answer:each apple is between 28 and 29 cents

Step-by-step explanation:

Divide 2.28 by 8 apples

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3 years ago

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