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
pickupchik [31]
3 years ago
6

Help!In the figure below, triangle ABC is an equilateral triangle, and quadrilateral DEFB is a square.

Mathematics
1 answer:
Dafna11 [192]3 years ago
8 0
m\angle ABD=m\angle CBD-m\angle ABC\\
m\angle CBD=90\\
m\angle ABC=60\\
m\angle ABD=90-60=30\Rightarrow B
You might be interested in
What is the value of k?
Molodets [167]

Answer:

( {x}^{2}  + 16x + 64) - (x + 8)(x - 4) = k(x + 8) \\ ( {x + 8)}^{2}  - (x + 8)(x - 4) = k(x + 8) \\ (x + 8) - (x - 4) = k \\ k = (x - x) + (8 + 4) \\ k = 12

4 0
2 years ago
Read 2 more answers
Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question.
SpyIntel [72]

Let

x------> the number of multiple choice question

y------> the number of free response question

we know that

3x+8y=55 -----> equation A

x+y=15

x=15-y -----> equation B

Substitute equation B in equation A

3[15-y]+8y=55

45-3y+8y=55

5y=55-45

5y=10

y=2

Find the value of x

x=15-y

x=15-2=13

therefore

<u>the answer is</u>

the number of multiple choice question are 13

the number of free response question are 2

5 0
3 years ago
Read 2 more answers
Can someone please help me with this problem
pychu [463]
Oh wait a minute i have to write this down
5 0
3 years ago
Use the following information to answer problems 14-16: Suppose that in a large metropolitan area, 82% of all households have ca
Helen [10]

Answer:

66.6% or 0.66

Step-by-step explanation:

82% or 0.82 of All households have cable TV.

X = The number of households in a group of 6, that have cable TV.

You wish to find the proportion or percentage of groups for which EXACTLY 4 of 6 households will have cable TV.

82% of 6 is = 4.92

Approximately 4.92 out of 6 households, have cable TV.

Using this figure, you can now find out what % of 6 will give you 4.

Cross multiply:

0.82 - 4.92

M - 4

M = (4×0.82) ÷ 4.92 = 3.28÷4.92 = 0.666

Hence, 66.6% of 6 households, have cable TV. In other words, exactly 4 households (X=4) have cable TV.

To test, you can find what 66% of 6 is. You will get 4.

6 0
3 years ago
Is 336 − –5,083 positive or negative?
Vesna [10]

Answer:

positive

Step-by-step explanation:

if you subtract a negative number, it’s the same as adding a positive number. If you add 2 positive numbers, you get a positive number, so the expression is positive.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following prefixes would be best for measuring small objects like the width of a piece of paper?
    6·2 answers
  • Find the product :<br> (127)(-65)
    5·1 answer
  • You may remember that the area of a triangle is A=12B⋅H, where B is the base of the triangle and H is the height.
    5·2 answers
  • 3x + 5 = 39<br> How do I do this. Do I make the x by itself
    12·2 answers
  • What is the factored form of the polynomial below and find the zeros. *<br> 4x² + 5x – 6
    10·1 answer
  • ASAP<br> 7x+42=0<br> Options <br> x= 6<br> X= -6
    12·1 answer
  • Find the lateral surface area of the tissue<br><br> box.<br><br> 4 in<br> 7 in.<br> 5 in.
    12·1 answer
  • Please help me with this
    14·1 answer
  • Help pls
    10·2 answers
  • Sandra signed up for the gym during the spring special.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!