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
If you earn $12 an hour and you work 40 hours a week,<br> how much do you earn a month?
qaws [65]

Answer:

$1,920

Step-by-step explanation:

you multiply 12 by 40. then, assuming a typical month is 4 weeks, you multiply that number by 4.

4 0
3 years ago
Read 2 more answers
Can you please do 2 and 3
Masja [62]

Answers:

<h2>2. 17.5</h2><h2>3a. 6</h2><h2>3b. greater</h2><h2>3c. add 1 to it</h2>

Step-by-step explanation:

When rounding, look at the digit that is ls to the right beside the digit in the place value to round to. If the number is greater than or equal to 5, round the digit in the place value to round to up one. If it is less than 5, do not. Let's look at some examples.

EXAMPLE 1:

23.123 round to the nearest tenth.

23.<u>1</u>23 tenths place is underlined

Digit after tenths is bold. If greater than or equal to 5, round underlined digit up. If less than 5, don't change underlined digit.

The bold number is a 2, which is less than 5, so the underlined number doesn't change.

ANSWER TO EXAMPLE 1: 23.1

EXAMPLE 2:

57.54 round to the nearest whole number

5<u>7</u>.54 Nearest whole place value is underlined

Digit after underlined digit is bold. If greater than or equal to 5, round underlined digit up one. If bold digit is less than 5, don't change the underlined digit.

The bold number is a 5, which equals 5, so the underlined number increases by 1.

ANSWER TO EXAMPLE 2: 58

Now, let's examine yours, now that we know how to round

17.46 round to the nearest tenth

17.<u>4</u>6 tenths place is underlined

Digit after tenths is bold. If greater than or equal to 5, round underlined digit up by one. If bold digit is less than 5, don't change the underlined digit.

The bold number is a 6, which is greater than 5, so the underlined number increases by 1.

ANSWER TO QUESTION: 17.5

Hope this helped :)

<em>PLEASE MARK BRAINLIEST</em>

8 0
3 years ago
An isosceles triangle is such that each of the base angles is twice the vertical angle. find the angles of the triangle​
frosja888 [35]

Answer:

2x + 2x + x =180
x = 36 degree

Step-by-step explanation:

6 0
2 years ago
4x + 2y = –22 and 4x + 4y = -12
mart [117]

hope it helps

plz mark brainliest

5 0
4 years ago
Read 2 more answers
What is 49/50 equivalent to as a decimal and as a percent
Andru [333]
.98 and98% .................
4 0
3 years ago
Other questions:
  • The map below shows the path that Jin walked this morning. According to his pedometer, the total distance of this path was 2.3 k
    6·1 answer
  • Which statement is true regarding the graphed functions
    9·2 answers
  • Adult tickets to the fall play cost $8 and student tickets cost $4. The drama class sold 30 more adult tickets than student tick
    11·1 answer
  • Help me solve this...
    11·1 answer
  • What is equivalent to 9 out of 25
    15·1 answer
  • HAlp meh thank you &gt;:3
    6·2 answers
  • 7200 plus what equals 8342
    12·1 answer
  • Convert 20,000ft = ____ mi. ____ ft. ​
    10·1 answer
  • Find the area of the triangle. <br><br> Area= <br> (Simplify your answer)
    6·1 answer
  • 2. Find two equivalent ratios of the following ratios: a) 27 : 9 b) 7 : 35
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!