1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
My name is Ann [436]
3 years ago
8

Find measure of angles B, E, D and C and the length of BC.

Mathematics
2 answers:
melomori [17]3 years ago
6 0

Answer:

< B = 180-30-65=85°

< E = 85°

< D = 30°

< C = 65°

BC = 20/35 × 28 = 16

choli [55]3 years ago
5 0

Answer:

<D = 30

< C = 65

<B = <E = 85

16 = BC

Step-by-step explanation:

ABC ~ Triangle DEF

<A = <D = 30

< C = <F = 65

Since they are similar triangles

A+ C + B = 180 since the angles of a triangle = 180

30+65+B =180

95+ B = 180

<B = 180 -95 = 85

<B = <E = 85

The triangles are similar so the sides are proportional

AB      BC

----  = ---------

DE      EF

20      BC

----  = ---------

35      28

Using cross products

20*28 = 35 BC

Divide each side by 35

20*28/35 = 35/35 BC

16 = BC

You might be interested in
The product of a number and 9
Anna35 [415]

Answer:

9x

Step-by-step explanation:

let's say that x is the number we don't know

the product means multiplication

9*x=9x

so the answer is 9x

4 0
3 years ago
Read 2 more answers
A halogen-lighting manufacturer packs 64 halogen lamps ink a cube-shaped container. the manufacturer has been asked by his distr
sashaice [31]
If the original container can hold 64 halogen lamps and the new container can hold 8 lamps, then
64/8 = 8
There will 8 smaller containers needed to pack all of the 64 lamps from the original large cubed-shaped container.
7 0
3 years ago
Describe four different subsets of a real numbers.
Vadim26 [7]

Answer:

Step-by-step explanation:

Natral whole rational irrational

7 0
3 years ago
Suppose you like to keep a jar of change on your desk. Currently, the jar contains the following: 22 Pennies 27 Dimes 9 Nickels
kap26 [50]

Answer:

P(Penny\ and\ Dime) = \frac{9}{116}

Step-by-step explanation:

Given

Pennies = 22

Dimes = 27

Nickels = 9

Quarters = 30

Required

P(Penny\ and\ Dime)

This is calculated as:

P(Penny\ and\ Dime) = P(Penny) * P(Dime)

Since it is a selection without replacement, the computation is:

P(Penny\ and\ Dime) = \frac{Penny}{Total} * \frac{Dime}{Total-1}

So, we have:

P(Penny\ and\ Dime) = \frac{22}{22+27+9+30} * \frac{Dime}{22+27+9+30-1}

P(Penny\ and\ Dime) = \frac{22}{88} * \frac{27}{87}

P(Penny\ and\ Dime) = \frac{1}{4} * \frac{9}{29}

P(Penny\ and\ Dime) = \frac{9}{116}

5 0
2 years ago
QUICK HELP!!! PLEASE!! 20 POINTS!
NikAS [45]

Answer:

X/-1 + Y/2 = 1

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • 7x^2-2x+1-(9x^2+2x-1)
    5·2 answers
  • Iodine-123 is a radioactive substance used in medicine. It has a half-life of 13 hours. A nurse received a solution that initial
    9·1 answer
  • Anyone waanna talk on Instagram ​
    9·2 answers
  • Kyle has a storage box that is 2 ft. long, 3 ft. high, and has a volume of 12 ft.3
    12·2 answers
  • What is f(g(x)) for x &gt; 5?
    10·2 answers
  • Mikes movie Rentals Charge $3.00 for each rental plus $0.50 for each additional day. Reed's Rentals Charge $1.50 each rental plu
    15·1 answer
  • Convert these improper fractions to mixed numbers 74 over 3 please help
    7·1 answer
  • Perpendicular lines are two coplanar lines that intersect to form what type of angle?
    14·1 answer
  • 2- Describe the cross section
    6·1 answer
  • Answer This One And Pay Attention To This One.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!