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2 years ago

Please help me solve this correct answer gets brainlist

Mathematics

1 answer:

Inessa [10]2 years ago

7 0

Answer:

12.449899598

Step-by-step explanation:

You would use pythagoras thereom.

C^2=A^2+B^2

The hypotenuse is C (which is the longest side of the triangle - 18).

18×18=13×13+B^2

324=169+B^2

324-169=B^2

155=B^2

Square root B to get B on it's own which would be 12.449899598.

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For the equation given below, evaluate y′ at the point (−2,−1).<br><br> 3xy−3x−12=0.

SSSSS [86.1K]

Answer:

Y'=3xy-3x-12

Y'=F(-2,-1)=0

Step-by-step explanation:

The function of the equation at the point (-2,-1)

is where the equation make the function go to zero:

Y'=3xy-3x-12

Y'=F(-2,-1)=[3(-2)(-1)]-[3(-1)]-12

F(-2,-1)=[6]-[-6]-12

F(-2,-1)=6+6-12

F(-2,-1)=12-12

F(-2,-1)=0

Solving for y

3xy-3x-12=0

y=4/x+x

Making y=0

$\frac{4}{x}+x=0$

$x^{2} =-4$

$x=-2$

So the values make the function go to zero

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3 years ago

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Lesechka [4]

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3 years ago

(4y-4)=(10x+65) answer please?

icang [17]

Answer:

Step-by-step explanation:

4y-4=10x+65, this can be expressed in many ways...

4y-10x-4-65=0

4y-10x-69=0 or

4y=10x+69

y=(10x+69)/4

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3 years ago

X is at most 30 represent as an algebraic inequality

masya89 [10]

Answer:

x ≤ 30

Step-by-step explanation:

'at most' means the same as 'less than or equal to'.

The sign 'for less than or equal' to is ≤.

So it's simply x ≤ 30.

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3 years ago

What is the quotient of 42 divided by 9124

Sunny_sXe [5.5K]

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