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3 years ago

In the figures, CDA =XYZ name the congruent angles

Mathematics

1 answer:

Cerrena [4.2K]3 years ago

4 0

I have no idea, are there any pics of the triangles?

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Find the value of x.

lawyer [7]

Answer:

$\huge\boxed{x=\sqrt{70}}$

Step-by-step explanation:

ΔABC and ΔADB are similar (AAA).

Therefore the corresponging sides are in proportion:

$\dfrac{AB}{AD}=\dfrac{AC}{AB}$

Substitute:

$AB=x\\AC=7+3=10\\AD=7$

$\dfrac{x}{7}=\dfrac{10}{x}$ <em>cross multiply</em>

$(x)(x)=(7)(10)\\\\x^2=70\to x=\sqrt{70}$

4 0

3 years ago

Can someone help me with this math problem

zepelin [54]

Answer:

$50.50 = 18 + 5n

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Please help me pleasssseeee <3

Sophie [7]

Answer:

1st ans

(8x+19)=(9x+9)(vertically opposite angle)

19-9=9x-8x

x=10

2nd ans

(3x-31)=(x+59)(exterior alternate angle)

3x-x=59+31

2x=90

x=90/2

x=45

3rd ans

(5x-33)+(6x+4)=180(straight angle )

11x-29=180

11x=180+29

x=209/11

x=19

8 0

3 years ago

Which statement describes the lines whose equations are y=1/3x+12 and 6y=2x+6

ICE Princess25 [194]

First, you should solve both equations for the same variable. Since the first one is already solved for y, solve the second equation for y as well.

6y = 2x + 6 Divide both sides by 6
y = $\frac{1}{3}$ x + 1

You can see that both lines have a slope of $\frac{1}{3}$ .
Lines that have the same slope are parallel lines.

4 0

3 years ago

Please answer 5,6,7. With explanation.

Anestetic [448]

First you need to know some rules 2 numbers that are the same with coefficients divided : you differentiate those coeff
and multyplied :you sum up them

12x^8/3x^3= 4x^8-3=4x^5

20^2x=20^x*20^x

m^5*m^-7=m^5-7=m^-2

8 0

3 years ago