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
liubo4ka [24]
2 years ago
11

SOS! Can some please help me!

Mathematics
2 answers:
Wewaii [24]2 years ago
8 0

Answer:

8.9

Step-by-step explanation:

1. DE:BC=AD:AB

2. AD=AB+BD, but according to the conditions AB=5, then

AD=5+BD.

3. after the substitution DE=16; BC=9; AB=5 and AD=5+BD into the formula:

16:9=(5+BD):5;

\frac{16}{9} =\frac{BD+5}{5};

BD=80/9 - 5≈3.9.

4. if AD=AB+BD, then AD=5+3,9=8,9

DIA [1.3K]2 years ago
4 0

Answer:

8.9 is your answer to the question

You might be interested in
Burger Joint is celebrating their grand opening. For 2 milkshakes and 3 burgers, the cost is $13. For 5 milkshakes and 7 burgers
Mademuasel [1]

Answer:

do you mean a big mac and a smoothie?

Step-by-step explanation:

8 0
3 years ago
A 16-ounce bottle of Fresh Water is $1.76. A 20-ounce bottle of Spring Water is $2.40 . Which statement about the unit prices is
krok68 [10]
What Are The Answer Choices?
7 0
3 years ago
What is the mean of: 3.7, 5, 9.2, 4, 6.1, 5, 2.6, 4, 5.2, 5?
mart [117]

Answer:

4.98

Step-by-step explanation:

6 0
3 years ago
Hiiii.. please help me with this limit question ​
Alenkasestr [34]

Answer:

π

Step-by-step explanation:

Solving without L'Hopital's rule:

lim(x→0) sin(π cos²x) / x²

Use Pythagorean identity:

lim(x→0) sin(π (1 − sin²x)) / x²

lim(x→0) sin(π − π sin²x) / x²

Use angle difference formula:

lim(x→0) [ sin(π) cos(-π sin²x) − cos(π) sin(-π sin²x) ] / x²

lim(x→0) -sin(-π sin²x) / x²

Use angle reflection formula:

lim(x→0) sin(π sin²x) / x²

Now we multiply by π sin²x / π sin²x.

lim(x→0) [ sin(π sin²x) / x² ] (π sin²x / π sin²x)

lim(x→0) [ sin(π sin²x) / π sin²x] (π sin²x / x²)

lim(x→0) [ sin(π sin²x) / π sin²x] lim(x→0) (π sin²x / x²)

π lim(x→0) [ sin(π sin²x) / π sin²x] [lim(x→0) (sin x / x)]²

Use identity lim(u→0) (sin u / u) = 1.

π (1) (1)²

π

Solving with L'Hopital's rule:

If we plug in x = 0, the limit evaluates to 0/0.  So using L'Hopital's rule:

lim(x→0) [ cos(π cos²x) (-2π cos x sin x) ] / 2x

lim(x→0) [ -π cos(π cos²x) sin(2x) ] / 2x

-π/2 lim(x→0) [ cos(π cos²x) sin(2x) ] / x

Again, the limit evaluates to 0/0.  So using L'Hopital's rule one more time:

-π/2 lim(x→0) [ cos(π cos²x) (2 cos(2x)) + (-sin(π cos²x) (-2π cos x sin x)) sin(2x) ] / 1

-π/2 lim(x→0) [ 2 cos(π cos²x) cos(2x) + π sin(π cos²x) sin²(2x) ]

-π/2 (-2)

π

8 0
2 years ago
What is the slope of a trend line that passes through the points (1, 3) and (10, 25)?
nydimaria [60]
25-3/10-1 which is 22/9
6 0
3 years ago
Read 2 more answers
Other questions:
  • The sample variance of hourly wages was 10. what is the sample standard deviation?
    7·1 answer
  • 95 - 4G < 40 + 5G plz help me
    13·1 answer
  • The sum of the digits of a two-digit number is 12. The number formed by interchanging the digits is 54 more than the original nu
    7·1 answer
  • Find the length of the longest object that will fit inside a cylinder that has a radius of 3.25 inches and is 7 inches high.
    7·1 answer
  • A light flashes every 8 seconds. How many times would it flash in 3 minutes?
    13·1 answer
  • Forbes reports that women trust recommendations from Pinterest more than recommendations from any other social network platform
    15·1 answer
  • The function f(x) = { x + is used to complete this table. Which statements are true of the given function?
    6·1 answer
  • Classify the slope of the line abovE
    15·1 answer
  • Solve for x. Round to the nearest tenth of a degree, if necessary.
    13·1 answer
  • Name each polynomial<br><br> 4m^2-5m+6<br><br> 18s-7<br><br> 6p^3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!