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
valina [46]
3 years ago
12

Proving triangles similar

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
6 0

Answer:

x=11

Step-by-step explanation:

You do 38/3x+3 and 19/x+7 and then cross mulitply and get 57x+57=38x+266. Then yoy subtract 57 from 266 and get 57x=38x+209. Now you have to subtract 38 from 57 and then answer will be 19. So now you have 19x=209. Finally you divide 209 by 19 and get x=11. Good luck!

You might be interested in
Please help It is important
sladkih [1.3K]

Answer:

$54

Step-by-step explanation:

first find 1/4 of $80 and then take that answer and find 10% of that to get your answer

8 0
2 years ago
Of all the students who participate in the school music programs in the district, 394 students play a wind instrument. If 2/5 of
daser333 [38]
2/5 of the students is equivalent to 394 students. The total number of students involved is thus 394*5/2.
7 0
3 years ago
Read 2 more answers
Can someone please help me?
Katyanochek1 [597]
The matrix represents the system:

-3x+5y=15

2x+3y=-10, which is choice c. 


We can see it more clearly from the way we multiply matrices, as follows:

\[
  \left[ {\begin{array}{cc}
   -3 & 5 \\
    \ 2  & 3 \\
  \end{array} } \right]
\] \cdot  \[
  \left[ {\begin{array}{c}
   x \\
    y \\
  \end{array} } \right]
\]= \left[ {\begin{array}{c}
   -3\cdot x+5\cdot y \\
    2\cdot x+3\cdot y \\
  \end{array} } \right]
\]= \[ \left[ {\begin{array}{c} 15 \\ -10 \\ \end{array} } \right] \]

Answer: C
7 0
3 years ago
PLEASE ANSWER FAST!!!! On Friday, Susan bought a dress for 35% off the regular price of $70.00. The next day, the dress that Sus
attashe74 [19]

Answer:

She would have saved 14 dollars more

Step-by-step explanation:

Hope this helps and plz mark brainliest :)

6 0
3 years ago
Read 2 more answers
Suppose an airline policy states that all baggage must be box shaped with a sum of​ length, width, and height not exceeding 114
NISA [10]

Answer:

Step-by-step explanation:

Represent the length of one side of the base be s and the height by h.  Then the volume of the box is V = s^2*h; this is to be maximized.

The constraints are as follows:  2s + h = 114 in.  Solving for h, we get 114 - 2s = h.

Substituting 114 - 2s for h in the volume formula, we obtain:

V = s^2*(114 - 2s), or V = 114s^2 - 2s^3, or V = 2*(s^2)(57 - s)

This is to be maximized.  To accomplish this, find the first derivative of this formula for V, set the result equal to 0 and solve for s:

dV

----- = 2[(s^2)(-1) + (57 - s)(2s)] = 0 = 2s^2(-1) + 114s - 2s^2

ds

Simplifying this, we get dV/ds = -4s^2 + 114s = 0.  Then either s = 28.5 or s = 0.

Then the area of the base is 28.5^2 in^2 and the height is 114 - 2(28.5) = 57 in

and the volume is V = s^2(h) = 46,298.25 in^3

7 0
3 years ago
Other questions:
  • In the paper airplane shown
    9·1 answer
  • Plz answer ill give brainliest i only need 3 if you answer all your a living legend
    13·1 answer
  • A rectangular garden has a length that is five less than twice the width. the garden perimeter is 50 meters. what are the dimens
    13·1 answer
  • A bag of rice weighs 50kg. If the weight of the bag increases by 45% find the new weight of the bag.
    15·1 answer
  • Which of the following side lengths are the legs? 6, 14, and 12
    9·2 answers
  • Watch help video
    5·1 answer
  • 11. What is the slope-intercept equation of the line with slope 7 that passes through the point (1, 2)?
    11·1 answer
  • A company's sales in Seattle were $330,000 in 2012, while their sales in Portland were $235,000 for the same year. Complete the
    14·1 answer
  • If seven out of every thirteen trick-or-treaters that came to your house last Halloween were dressed as Buzz Lightyear, what pro
    6·2 answers
  • Find the slope and y intercept for each table, and then write an equation
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!