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2 years ago

CosA×cos2A+sinA×sin2A=cos (2A-A)

Mathematics

1 answer:

Aleksandr-060686 [28]2 years ago

7 0

Answer:

csc

, as desired!

Step-by-step explanation:

cos

sin

cos

sin

cos

(

−

)

sin

cos

sin

cos

sin

csc

, as desired!

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Use the slope-intercept form to Graph y=-1/8x+2

noname [10]

Step-by-step explanation:

This is a straight line equation. We only need two points to draw a straight line.

Choose two different numbers, put them into the equation instead of x, and calculate the value of y.

$y=-\dfrac{1}{8}x+2$

for x = 8

$y=-\dfrac{1}{8}\cdot8+2=-\dfrac{8}{8}+2=-1+2=1$

for x = -8

$y==-\dfrac{1}{8}\cdot(-8)+2=\dfrac{8}{8}+2=1+2=3$

Mark the points in the coordinate system and draw a straight line through the given points.

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2 years ago

Aiguo places 6 circular biscuits, each with the same diameter, on a baking sheet as

zloy xaker [14]

Answer:

The answer is 113.04

Step-by-step explanation:

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2 years ago

A farmer has both pigs and chickens on his farm there are 78 fee and 27 heads how many pigs and how many chickens are there

Andre45 [30]

Assuming health non-mutated animals:
$Feet = 4*Pigs + 2*Chickens$
$Heads = Pigs + Chickens$

By back substitution:
$78 = 4*(27-Chickens) + 2*Chickens$
$78 = 108 -2*Chickens$
$-30 = -2*Chickens$
$Chickens= 15$

Then:
$27 = Pigs + 15$
$Pigs = 12$

To check:
$Feet = 4*Pigs + 2*Chickens$
$78 = 4*12 + 2*15$
$78 = 48 + 30$
$78 = 78$ CHECKS

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3 years ago

Alan's grandfather made 10 pancakes Alan ate 3 pancakes his sister ate 2 pancakes what fraction of the pancakes did Alan eat

Alexandra [31]

Answer:

7/3

Step-by-step explanation:

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2 years ago

To find the quotient Start Fraction 5 Over 7 End Fraction divided by one-third,

posledela

Answer:

its C.

Step-by-step explanation:

i took the test

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2 years ago

CosA×cos2A+sinA×sin2A=cos (2A-A)​

CosA×cos2A+sinA×sin2A=cos (2A-A)