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3 years ago

What is the Vertex for #17? The axis of symmetry for #18?

Mathematics

1 answer:

Darya [45]3 years ago

5 0

The vertex for #17 is at 1,1 and the axis of symmetry is at -1 on the X line.i hope this helps.

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Trapezoid ABCD is congruent to trapezoid . Which sequence of transformations could have been used to transform trapezoid ABCD to

dedylja [7]

The answer is D: Trapezoid ABCD was reflected across the y-axis and then rotated 90° counterclockwise around the origin

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3 years ago

CALC BC HELPPP!!!??? 100PTS!!!

lyudmila [28]

the assumption being that "x" is a plain variable whilst "y" is a function, that matters because the chain rule would be needed for a function, not so for a plain variable.

$4x^2+4x+xy=5\implies 8x+4+\stackrel{\textit{product rule}}{\left( 1\cdot y+x\cdot \cfrac{dy}{dx} \right)}=0 \\\\\\ x\cfrac{dy}{dx}=-8x-4-y\implies \cfrac{dy}{dx}=\cfrac{-8x-4-y}{x}$

now, we know that y(5) = -23, which is another way of saying that when x = 5, y = -23, but we already knew that, we can get that by simply plugging it into the equation hmmm y'(5), well

$\left. \cfrac{dy}{dx}=\cfrac{-8x-4-y}{x} \right|_{\stackrel{x=5~}{\textit{\tiny y=-23}}}\implies \cfrac{-8(5)-4-(-23)}{5}\implies \cfrac{-21}{5}$

8 0

2 years ago

Can anyone help i’m in desperate need!?

Murljashka [212]

Answer:

1. coplanar

2. line segment

3. plane

4. ray

5. postulate

6. undefined terms

7. coplanar

8. point

5 0

3 years ago

In a pass of 30 students 13 are boys

Firdavs [7]

Answer:

Ratio of boys to all students:

13:30

Ratio of girls to all students:

17:30

Ratio of boys to girls:

13:17

Step-by-step explanation:

I think you're asking for the ratio... so I hope this helps! :D

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2 years ago

Solve the system of equations by substitution.<br> y = 3x-7<br> 2x + 5y = 16

Virty [35]

Answer:

In the picture

Step-by-step explanation:

Hope that helps.

8 0

3 years ago