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1 year ago

A portion of the Quadratic Formula proof is shown. Fill in the missing statement.

Mathematics

1 answer:

Angelina_Jolie [31]1 year ago

8 0

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

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Find m/EGD. (measurement in degrees)

Wewaii [24]

Answer:

$\huge\boxed{\bf\:30^{\circ}}$

Step-by-step explanation:

We need to find m ∠EGD.

From the given figure, we can see that, ∠BGA & ∠EGD are vertically opposite angles (opposite angles that share the same vertex ⟶ G).

Also, vertically opposite angles are equal to each other.

Given, ∠BGA = 30°

So, ∠EGD = ∠BGA = 30°.

$\rule{150pt}{2pt}$

6 0

1 year ago

Read 2 more answers

How do I find the measure of the interior angle?

nataly862011 [7]

Answer:

see the explanation

Step-by-step explanation:

we know that

The sum of the interior angles in any polygon is given by the formula

$S=(n-2)180^o$

where

n is the number of sides of the polygon

step 1

Find the sum of the interior angles in the given polygon

we have

$n=5\ sides$

substitute

$S=(5-2)180^o=540^o$

step 2

Find the value of x

we know that

$-3x+125+(45-x)+(-x+90)+80=540$

solve for x

$-5x+340=540$

$-5x=200\\x=-40$

step 3

Find the measure of each interior angle

substitute the value of x

Angle A

$-3(-40)=120^o$

Angle B

$80^o$

Angle C

$-(-40)+90=130^o$

Angle D

$45-(-40)=85^o$

Angle E

$125^o$

3 0

2 years ago

The scale factor from a small triangle ABC to a large triangle XYZ is 5. How many times larger will the perimeter of triangle XY

Ierofanga [76]

Answer:

Answer below :)

Step-by-step explanation:

Hi there!

Question 4 - the answer will be 5. Since the scale factor is 5, we would (hypothetically) multiply the area by 5 to get the new area of XYZ, so area XYZ is 5 times the area of ABC.

Question 5 - A.

First we multiply 45 by 12 to find the amount in inches. This is 540. Now, we divide that by 6 to get 90. This is our scale factor in inches, but the answers only show the scale in feet, so we have to convert. Divide 90 by 12 to get 7.5.

I hope this helps!

4 0

2 years ago

Graph the linear equation. <br> 3x-4y=12 Thanks

WITCHER [35]

Hi
You can choose to points (x,y) which solve the equation, like (0,-3) and (4,0) and then draw a line through the points.

6 0

2 years ago

Read 2 more answers

Solve the problem x/27=4/9 x=

Monica [59]

Answer: x=12