4 years ago

Which statement is true?

Mathematics

1 answer:

natka813 [3]4 years ago

7 0

Every square is a rectangle because it is a quadrilateral with all four angles right angles.

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How do you make both sides equal? 5h + 20 = 3h

3241004551 [841]

Answer:

h = -10.

Step-by-step explanation:

They will be equal for a specific value of h.

Solve for h:

5h + 20 = 3h

5h - 3h = -20

2h = -20

h = -10.

Checking:

Left side = 5(-10) + 20 = -30.

Right side = 3*-10 = -30.

4 0

3 years ago

The parametric curve described by the equations x=\cos(t),\;\;y=\sin(t)\cos(t) has two tangent lines at (0, 0). find the equatio

mr Goodwill [35]

Hello,

$x=cos(t)==\ \textgreater \ \dfrac{dx}{dt} =-sin(t)\\
y= \dfrac{sin(2t)}{2}==\ \textgreater \ \dfrac{dy}{dt} =cos(2t)\\

 \dfrac{dy}{dx} = \dfrac{ \frac{dy}{dt}}{ \frac{dx}{dt} } =- \frac{cos(2t)}{sin(t)} \\
For\ x=0, \ t=cos(0)= \frac{ \pi }{2} +k \pi \\

( \dfrac{dy}{dx} )_{x=0} =\pm\ 1\\

tangents \ are\ \{ y=-x,y=x \}\\

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