Ask question

Ask question

All categories

2 years ago

6

Are these triangles similar? Why?

2 answers:

uysha [10]2 years ago

6 0

It looks like yes, SSS

Arada [10]2 years ago

3 0

Answer:

Step-by-step explanation:

<Q is common to both triangles.

130 / 40 = 3.25

Call DQ = x

40/130 = x / (x + 72) Cross multiply

40*(x + 72) = 130*x

40x + 2880 = 130x Subtract 40 x from both sides

2880 = 90 x Divide by 90

x = 32

(72 + 32)/32 = 104/32 = 3,25

The ratios are the same.

Therefore the triangles are similar by SAS

You might be interested in

Which line is being represented by the graph?

Yakvenalex [24]

Answer:

The answer is <em><u>C,</u></em><em><u> </u></em><em><u>y=</u></em><em><u> </u></em><em><u>-</u></em><em><u>3</u></em><em><u>/</u></em><em><u>4</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>4</u></em>

5 0

1 year ago

Graph the function, y=-5x+3

Thepotemich [5.8K]

Graph a point at (0,2)

then graph a point at (-2,-1)

3 0

3 years ago

What is the value of 8m + 5n when m = 4 and n = 10?

Stels [109]

Answer:

82

Step-by-step explanation:

m = 4

8m = 4 x 8 = 32

n = 10

5n = 5 x 10 = 50

32 + 50 = 82

4 0

2 years ago

A police car's siren operates at a frequency of 2,000 Hz. What frequency would a stationary listener observe if the police car i

SpyIntel [72]

we can use formula

$f_L=f_s(\frac{v_a-v_p}{v_a+v_p} )$

where

fL is listener frequency

fs is siren frequency

va is the speed of sound in air

vs is police car speed

so, we have

$f_s=2000Hz$

$v_a=345m/s$

$v_p=65mph$

now, we can change it into m/s

$v_p=65*\frac{1609}{3600}m/s$

$v_p=29.05139m/s$

now, we can plug it

$f_L=2000(\frac{345-29.05139}{345+29.05139} )$

$f_L=1689.33263Hz$ ..............Answer

3 0

2 years ago

The mass of 5 m' of copper is 44 800 kg. Work out<br> the density of copper.

solniwko [45]

Here bro this should help

8 0

3 years ago