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andreev551 [17]
3 years ago
13

Help on question 6 please

Mathematics
1 answer:
WITCHER [35]3 years ago
6 0

Answer: Your answer should be "1"! I hope this helps!^^

Step-by-step explanation:

f(1/2)=4(1/2)^2−2(1/2)+1

f(1/2)=1−1+1

f(1/2)=1

Final answer is 1 :D

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Angles α and β are the two acute angles in a right triangle. Use the relationship between sine and cosine to find the value of β
Dimas [21]

Answer:

From given relation the value of β is 37.5°

Step-by-step explanation:

Given as :

α and β are two acute angles of right triangle

Acute angle have measure less than 90°

Now given as :

sin(\frac{x}{2} + 2x) = cos(2x +\frac{3x}{2})

Or, cos(90° - (\frac{x}{2}+2x)) =  cos(2x +\frac{3x}{2})

SO, (90° - (\frac{x}{2}+2x)) = 2x+\frac{3x}{2}

Or, 90° =  2x+\frac{3x}{2} + \frac{x}{2}+2x

or, 90° = \frac{4x}{2} + 4x

Or,  90° =  \frac{12x}{2}

So, x =  \frac{90}{6} = 15°

∴ sin(\frac{x}{2} + 2x) = sin(\frac{15}{2} + 30)

So, sin(\frac{x}{2} + 2x) = sin\frac{75}{2}

∴  The value of Ф_1 = \frac{75}{2} = 37.5°

Similarly  cos(2x +\frac{3x}{2}) =  cos(30 +\frac{45}{2})

So ,The value of Ф_2 = \frac{105}{2} = 52.5°

∵ β   α

So, As 37.5°52.5°

∴ β = 37.5°

Hence From given relation the value of β is 37.5°  Answer

7 0
4 years ago
Will give brainiest if correct
amm1812
If a=c and b=c then a=c this is transitive property
4 0
3 years ago
Read 2 more answers
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malfutka [58]

Answer:

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Step-by-step explanation:

It looks like Associative property which is when you change the GROUP, but actually it’s commutative because it didn’t change any numbers in the group, just the order of where they were.

Associative: (25 + 19) + 15 = (15 + 19) + 25

Commutative: (25 + 19) + 15 = (19 + 25) + 15

It didn’t change the numbers, only the order. Therefore, it would be commutative property

8 0
3 years ago
Read 2 more answers
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inna [77]
9.6 if my math is right lol
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3 years ago
Mrs. Kimpton had the students in her crafts class sew pillows. She inspected each pillow to make sure it was satisfactory before
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Your answer would be 26. sorry if i'm wrong 


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