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3 years ago

Help plssssssssssssssssssssssssss

Mathematics

1 answer:

Gala2k [10]3 years ago

8 0

Answer:

Around 115 degrees

Step-by-step explanation:

It is slightly pass the 90 degree mark

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This question is that I need help with is "Finding angle measures between intersecting lines"

BartSMP [9]

Answer:

Step-by-step explanation:

Alright. Looking at the graph, angle CGE is equal to angle FGD.

FGD = 90-73

FGD = 17

Therefore, as angle CGE is equal to angle FGD, angle CGE is equal to 17.

Answer: 17 degrees.

6 0

3 years ago

Convert the Cartesian equation x^2 + y^2 = 16 to a polar equation.

RideAnS [48]

Answer:

Problem 1: $r=4$

Problem 2: $r=-2\sin(\theta)$

Problem 3: $r\sin(\theta)=3$

Step-by-step explanation:

Problem 1:

So we are going to use the following to help us:

$x=r \cos(\theta)$

$y=r \sin(\theta)$

$\frac{y}{x}=\tan(\theta)$

So if we make those substitution into the first equation we get:

$x^2+y^2=16$

$(r\cos(\theta))^2+r\sin(\theta))^2=16$

$r^2\cos^2(\theta)+r^2\sin^2(\theta)=16$

Factor the $r^2$ out:

$r^2(\cos^2(\theta)+\sin^2(\theta))=16$

The following is a Pythagorean Identity: $\cos^2(\theta)+\sin^2(\theta)=1$ .

We will apply this identity now:

$r^2=16$

This implies:

$r=4 \text{ or } r=-4$

We don't need both because both of include points with radius 4.

Problem 2:

$x^2+y^2+2y=0$

$(r\cos(\theta))^2+(r\sin(\theta))^2+2(r\sin(\theta))=0$

$r^2\cos^2(\theta)+r^2\sin^2(\theta)+2r\sin(theta)=0$

Factoring out $r^2$ from first two terms:

$r^2(\cos^2(\theta)+\sin^2(\theta))+2r\sin(\theta)=0$

Apply the Pythagorean Identity I mentioned above from problem 1:

$r^2(1)+2r\sin(\theta)=0$

$r^2+2r\sin(\theta)=0$

or if we factor out r:

$r(r+2\sin(\theta))=0$

$r=0 \text{ or } r=-2\sin(\theta)$

r=0 is actually included in the other equation since when theta=0, r=0.

Problem 3:

$y=3$

$r\sin(\theta)=3$

8 0

4 years ago

I want to know how to expand x(4 - 3.4y)

Alex73 [517]

X(4-3.4y)
= 4x - 3.4xy

6 0

3 years ago

Read 2 more answers

Mrs. Phillips bought apples at Whole

Sladkaya [172]

Answer:

$9.64

Step-by-step explanation:

1 pound = $1.89

x2.7 x2.7

2.7 pounds = $5.10

1 pound = $1.89

x2.4 x2.4

2.4 pounds = $4.54

$5.10+$4.54=$9.64

7 0

4 years ago

Geometry Help!<br><br> I've attached the image I need help with!

Free_Kalibri [48]

If A is parallel to B and B Is perpendicular to Y
⇒A is perpendicular to Y (Option D)

4 0

3 years ago