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
san4es73 [151]
3 years ago
7

Can someone please help me with this?

Mathematics
1 answer:
Arada [10]3 years ago
4 0

Answer:

x=14

Step-by-step explanation:

Similar shapes have proportional corresponding sides. So,

\dfrac{AB}{PQ}=\dfrac{BC}{QR}=\dfrac{CD}{RS}=\dfrac{DE}{ST}=\dfrac{EA}{TP}

Substitute all lengths:

\dfrac{4}{28}=\dfrac{3}{21}=\dfrac{5}{35}=\dfrac{3}{21}=\dfrac{2}{x}

Therefore,

\dfrac{2}{x}=\dfrac{1}{7}\\ \\x=14

You might be interested in
Solve the differential equation y prime equals the product of 2 times x and the square root of the quantity 1 minus y squared .
MatroZZZ [7]

Answer:

1. y = sin(x²+C)

2. see below

Step-by-step explanation:

1. \frac{dy}{dx} = 2x\sqrt{1-y^2}

separation of variables

\frac{dy}{\sqrt{1-y^2} } = 2xdx

integration both sides\int\frac{dy}{\sqrt{1-y^2} } = \int2xdx

you should get :

sin^{-1} (y) = x^2+C remember constant of integration!!

2. y = sin(x²+C)

3 = sin(0+C)

y(0) = 3 does not have a solution because our sin graph is not shifted vertically or multiplied by a factor whose absolute value is greater than 1, so our range is [-1,1] and 3 is not part of this range

4 0
3 years ago
4÷25times4÷100times4÷4
notsponge [240]

Answer:

0.0064 is your answer

Step-by-step explanation:

because 4÷25 = 0.16 and 4÷100=0.04 and of course 4÷4=1

When the 0.16 and 0.04 that gets 0.0064

3 0
3 years ago
Because of the rainy season, the depth in a pond increases 3% each week. Before the rainy season started, the pond was 10 feet d
Tanzania [10]
I believe it's D
r has to be 1.03
4 0
3 years ago
Question 2.
ipn [44]

Answer:

1) -0.669

2) -0.669

3) 0.669

Step-by-step explanation:

Since we are subtracting or adding multipled of pi, we will either obtain 0.669 or -0.669 as our answer for each of the three different questions.

Cosine is the x-coordinate in our orderes pairs. If our point ends up on the right side of the y-axis, the cosine will be positive. If our point ends up on left side, it will be negative.

Choose a thetha (I'm going to choose it in degrees) in the first quadrant to help with a visual.

If theta=70:

1) then 180-70=110 which is in second quadrant, so our cosines will be opposite in value.

2) then 180+70=250 which is in third quadrant, so our cosines will be opposite in value.

3) then 4×180-70=720-70=650 =1(360)+290 which ends up in the 4th quadrant which means the consines will have the same value.

3 0
3 years ago
5000
melisa1 [442]

Answer:

can u ;ut it in english plzz

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • the music booster sell 322 music buttons and raise $483 for the music departemen how much does each button cost
    13·2 answers
  • What is the answer ?
    13·2 answers
  • When would dividing the volume formula for a sphere by two be useful
    11·1 answer
  • Frank purchased 5 boxes of paper clips with 80 clips in each box . Cecily purchased 6 boxes of paper clips with 70 clips in each
    5·2 answers
  • A number is chosen at random from 1 to 25. Find the probability of selecting a number less than 2
    10·1 answer
  • What equals 24 with the numbers 15 10 13 1 22
    14·2 answers
  • Select all graphs that represent functions
    9·1 answer
  • 3k+7k-2=6k+16 answer?
    8·2 answers
  • Keisha bought some candy. At the end of the day she had three and one half bags remaining! She wanted to share what remained equ
    5·1 answer
  • Paul made $70 shoveling snow and $25 salting driveways. He set 35% of his total earnings aside for taxes. How much did he set as
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!