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3 years ago

Which point represents the vertex of the marked angle.

Mathematics

2 answers:

Pepsi [2]3 years ago

8 0

Its going to be the part that has a 90 degree angle so half of the square in the corner.

Shalnov [3]3 years ago

8 0

So the point E will be this point of the vertex of the marked angle sure

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Quadrilateral DEFG has vertices D(−2,4) , E(4,7) , F(10,3) , and G(8,0) .

Bumek [7]

The formula for a rotation 270° counterclockwise about the origin is (x,y)--->(y,-x)

D'(4,2) E'(7,-4) F'(3,-10) G'(0,-8)

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3 years ago

BRAINLIEST AVAILABLE!!!! PLEASE HELP ME WITH THIS!!! Thanks to all helpers!!!!!

larisa [96]

Answer: B

Step-by-step explanation:

-10x² + 12x - 9 = 0

a=-10, b=12, c=-9

x = $\frac{-b+/-\sqrt{b^{2}-4ac}} {2a}$

= $\frac{-12+/-\sqrt{12^{2}-4(-10)(-9)}} {2(-10)}$

= $\frac{-12+/-\sqrt{144-360}} {-20}$

= $\frac{-12+/-\sqrt{-216}} {-20}$

= $\frac{-12} {-20}$ +/- $\frac{\sqrt{-216}} {-20}$

= $\frac{3} {5}$ +/- $\frac{6i\sqrt{6}} {-20}$

= $\frac{3} {5}$ +/- $\frac{3i\sqrt{6}} {10}$

3 0

3 years ago

Read 2 more answers

Can anyone help me with this please ?

zlopas [31]

$\displaystyle \bf\\
 \frac{x}{20} = \frac{14}{25} \\ \\ \\ 
x = \frac{14 \cdot 20}{25} = \frac{280}{25} = 11,2 \sim \boxed{10} ~~\text{(rounded to the nearest tenth)}$

7 0

2 years ago

Sue is ready to move into a new apartment. Rent is $689 per month. To move in, Sue will need to pay

Fynjy0 [20]

Answer:1700

Step-by-step explanation:

7 0

2 years ago

What are the ratios for sin A and cos A? The triangle is not drawn to scale.

dalvyx [7]

Answer:

$SinA = \frac{84}{85}$ and $CosA=\frac{13}{85}$

Step-by-step explanation:

The ratios of sine and cos are defined as follows:

$Sin A = \frac{Opposite}{Hypotenuse}$ , and

$CosA = \frac{Adjacent}{Hypotenuse}$

The hypotenuse is always the side opposite of the 90 degree angle (for the given triangle, the hypotenuse is 85)

Since we are looking at the angle A, the opposite side with respect to A would be the side length of 84. That leaves the side 13 as the adjacent side.

Thus, we can now write:

$Sin A = \frac{Opposite}{Hypotenuse}\\SinA = \frac{84}{85}$

$CosA = \frac{Adjacent}{Hypotenuse}\\CosA=\frac{13}{85}$

The correct answer is the first answer choice.

7 0

3 years ago