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
iragen [17]
3 years ago
12

What is the value of m in the figure below in this diagram abd bcd

Mathematics
1 answer:
oee [108]3 years ago
6 0

\triangle BCA\ \text{and}\ \triangle DCB\ \text{are similar (AAA). Therefore the sides are in proportion:}\\\\\dfrac{BC}{CD}=\dfrac{AC}{BC}\\\\\text{We have}\\\\BC=m\\CD=7\\AC=7+11=18\\\\\text{Substitute:}\\\\\dfrac{m}{7}=\dfrac{18}{m}\qquad\text{cross multiply}\\\\m^2=(7)(18)\\\\m^2=126\to\boxed{m=\sqrt{126}}\to\boxed{A.}

You might be interested in
There are more than one answer help me and I give brainilest
andreev551 [17]

Answer:

Equivalent to a), b), and d). It is NOT equivalent to c).

Step-by-step explanation:

6m + 12 is also equivalent to a) 3(2m+4) because when you distribute, it's 6m + 12. It is also equivalent to b) 3m + 8 + 4 + 3m because if you add them together, you get 6m + 12. It is not equivalent to c) but is do d) 4m + 2(m + 6) cause you use the distributive property then add. I hope this helped and please mark brainliest!

4 0
3 years ago
Giving brainliest to the answer who gives step by step examples clearly!
Anarel [89]

<em>Hi there!</em>

<em>This should be easy,lol!</em>

<em>Answer:</em>

<em />\sqrt[3]{-128} = \boxed{-128 \sqrt{3} }<em> (Decimal: -221.702503)</em>

<em />\sqrt[3]{162} = \boxed{162 \sqrt{3} }<em> (Decimal: 280.592231)</em>

<em />\sqrt[3]{-1000x^4} = \boxed{-1732.050808x^4}<em />

<em>Sorry bout the explanation thingy. Their really long -.-!</em>

<em>But the last one is short so i'll put it for you!</em>

<em>Step-by-step explanation:</em>

<em>∴!For the last one!∴</em>

<em />\sqrt[3]{-1000x^4}<em />

<em>Simplifies to:</em>

<em />= - 1732.050808 * x^4<em />

<em />= - 1732.050808 * ( x * x * x * x)<em> </em>

<em />= - 1732.050808x^4<em />

<em>Have a great day/night!</em>

7 0
3 years ago
Read 2 more answers
Solve for r.<br><br> -35= -7r
GalinKa [24]
R= 5
You divide -7 by both sides to 1. Cancel out the -7 2. To simplify the -35. So simplified -35/-7=5
3 0
3 years ago
Please see the photo.
Andreas93 [3]

Answer:

CE and GD

Step-by-step explanation:

A secant of a circle is a line which passes through only 2 points of the circle. So it bisects the circle at exactly 2 points. BF is not a secant because even though the points are labelled there is no line passing through. The reason why GD is a secant is because there are the points G and F and a straight line runs through them so that's why it's a secant

4 0
3 years ago
Read 2 more answers
Original price of a phone: $129.99<br> Tax: 2%
Solnce55 [7]

Answer:

$132.59 is the answer

3 0
2 years ago
Read 2 more answers
Other questions:
  • ²³·∑⊂⇒⇔∈∫⇄ my teacher told me to anser this plz help
    14·1 answer
  • HELP PLEASE!!!! PLZ!!!
    11·1 answer
  • How do you solve this problem <br><br> 5(x-3)+7=5x-8
    15·1 answer
  • What is the of 80,000×200
    6·1 answer
  • Find the forth term (x+5)^7
    8·1 answer
  • Nosaira solved an equation. Her work is shown below:
    7·2 answers
  • What is the value of x?
    11·1 answer
  • Find the slope of the line through the given points.<br> (8,0) and (10, 10)
    13·1 answer
  • Natalie was out at a restaurant for dinner when the bill came. Her dinner came to $29. After adding in a tip, before tax, she pa
    7·1 answer
  • My siblings and I are a fierce squad of 4. We stand up for each other, always. we each want 7 halves of a YumYum cupcake.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!