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3 years ago

Help me Thank you (Make you the brainliest☺️)

Mathematics

1 answer:

const2013 [10]3 years ago

5 0

Answer:

55°

Step-by-step explanation:

sin(x°) = $\frac{opposite}{hypotenuse}$

x° = $sin^-1(\frac{9}{11} )=54.90319877$

Rounded to the nearest degree, the answer is 55°

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Can someone please read this?? I keep trying to but I get distracted!

Alex

Answer:

it translates to something i can't say on here ;)

5 0

3 years ago

Completing the square:

vichka [17]

Answer:

Step-by-step explanation:

Key to this method is remembering that

$(a+b)^2 = a^2 + 2ab + b^2$

So, if you divide the coefficient of x by 2 and square it, that will complete the square. With that in mind, things are easy.

6/2 = 3, so add $3^2 = 9$

$x^2+6x+9 = (x+3)^2$

So, c=9

Similarly, for the other two,

$c = (\frac{-34}{2} )^2 = (-17)^2 = 289$

You don't really have to worry about the sign, since squaring will always make it positive

$(\frac{25}{13}) ^2 = \frac{625}{169}$

7 0

3 years ago

if the farm has 30 chickens and cows and there are 82 chickens and cow legs all together how many cows would the farm have?

Allushta [10]

11 cow and 19 chicken 11*4=44 19*2=38 38+44=82

3 0

3 years ago

Given that

VLD [36.1K]

-17/2

Step-by-step explanation:

30-8(8)+4y

30=64+4y

30-64=4y

-34=4y

y= -34/4

y= -17/2

hope it helps!

6 0

3 years ago

How would I solve 7r=-7/2? I know the answer is -1/2 I just don't understand how to get -1/2 as my answer.

Art [367]

7r=-7/2

divide both sides by 7 to get r by itself

(7r)/(7) = (-7/2)/(7)

if you don't quite see it, think of multiplying both sides by 1/7 instead (its the same thing as dividing by 7)

(7r)*(1/7)=(-7/2)*(1/7)

r=-1/2

7 0

3 years ago