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
olasank [31]
4 years ago
11

A line segment is sometimes/never/always similar to another line segment, because we can sometimes/never/always map one onto the

other using only dilations and rigid transformations.
Mathematics
2 answers:
iVinArrow [24]4 years ago
7 0

Answer: sometimes for both

Step-by-step explanation:

svetlana [45]4 years ago
6 0

Answer: "always" for both

A line segment is <u>always</u> similar to another line segment, because we can <u>always</u> map one onto the other using only dilations and rigid transformations.

==================================

Explanation:

A dilation is where we grow or shrink an object. In this case, it would be lengthening or shortening a line. We can dilate any line to get it to any desired length we want. Then to make sure it matches up perfectly with the other line, we can perform translations (aka shifting) and rotations.

In other words, if we have four points A,B,C,D then it is possible to use dilations and rigid transformations to map points A,B to points C,D. The first segment AB would map to segment CD.

You might be interested in
A 500-gallon tank initially contains 220 gallons of pure distilled water. Brine containing 5 pounds of salt per gallon flows int
Wittaler [7]

Answer: The amount of salt in the tank after 8 minutes is 36.52 pounds.

Step-by-step explanation:

Salt in the tank is modelled by the Principle of Mass Conservation, which states:

(Salt mass rate per unit time to the tank) - (Salt mass per unit time from the tank) = (Salt accumulation rate of the tank)

Flow is measured as the product of salt concentration and flow. A well stirred mixture means that salt concentrations within tank and in the output mass flow are the same. Inflow salt concentration remains constant. Hence:

c_{0} \cdot f_{in} - c(t) \cdot f_{out} = \frac{d(V_{tank}(t) \cdot c(t))}{dt}

By expanding the previous equation:

c_{0} \cdot f_{in} - c(t) \cdot f_{out} = V_{tank}(t) \cdot \frac{dc(t)}{dt} + \frac{dV_{tank}(t)}{dt} \cdot c(t)

The tank capacity and capacity rate of change given in gallons and gallons per minute are, respectivelly:

V_{tank} = 220\\\frac{dV_{tank}(t)}{dt} = 0

Since there is no accumulation within the tank, expression is simplified to this:

c_{0} \cdot f_{in} - c(t) \cdot f_{out} = V_{tank}(t) \cdot \frac{dc(t)}{dt}

By rearranging the expression, it is noticed the presence of a First-Order Non-Homogeneous Linear Ordinary Differential Equation:

V_{tank} \cdot \frac{dc(t)}{dt} + f_{out} \cdot c(t) = c_0 \cdot f_{in}, where c(0) = 0 \frac{pounds}{gallon}.

\frac{dc(t)}{dt} + \frac{f_{out}}{V_{tank}} \cdot c(t) = \frac{c_0}{V_{tank}} \cdot f_{in}

The solution of this equation is:

c(t) = \frac{c_{0}}{f_{out}} \cdot ({1-e^{-\frac{f_{out}}{V_{tank}}\cdot t }})

The salt concentration after 8 minutes is:

c(8) = 0.166 \frac{pounds}{gallon}

The instantaneous amount of salt in the tank is:

m_{salt} = (0.166 \frac{pounds}{gallon}) \cdot (220 gallons)\\m_{salt} = 36.52 pounds

3 0
3 years ago
What is the factored form of 125a^6-64
SVETLANKA909090 [29]
<span>(5a^2-4)*(25a^4+20a^2+16) is your answer</span>
6 0
4 years ago
Read 2 more answers
Heyaaa, can you help me out? I'm not exactly sure how to go about solving this.​
scZoUnD [109]

Answer:

$48

Step-by-step explanation:

if youre paying 9.60 in tax and the tax is 20% you have to find out what 9.60 is 20% of

and 9.60 is 20% of 48

4 0
2 years ago
Read 2 more answers
For a population with µ = 100 and σ = 20, what is the X value corresponding to z = -0.75?​
Savatey [412]

The X value corresponding to z = -0.75 will be 85. Then the correct option is A.

<h3>What is the z-score?</h3>

The z-score is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

The z-score is given as

z = (x - μ) / σ

Where μ is the mean, σ is the standard deviation, and x is the sample.

For a population with µ = 100 and σ = 20.

Then the X value corresponding to z = -0.75 will be

-0.75 = (x - 100) / 20

   -15 = x - 100

      x = 85

Then the correct option is A.

More about the z-score link is given below.

brainly.com/question/15016913

#SPJ1

5 0
2 years ago
Abby has 56 peppermints. Hugo has p fewer peppermints than Abby. Write an expression
Masteriza [31]
If the amount of peppermints Hugo has is represented by H:
56 - p = H
Hope this helps :)
6 0
3 years ago
Other questions:
  • Alicia is writing the program for a video game. For one part of the game, she uses the rule (x,y) -&gt; (x - 3, y + 4) to move p
    6·1 answer
  • Selecting 3 coins, assume there are 5 dimes, 4 nickels, and 2 quarters. In how many possible ways can the selection be made so t
    12·1 answer
  • Can someone please help me so I don't fail and explain
    8·1 answer
  • ) In how many ways can 5 different novels, 2 different mathematics books, and 1 biology book be arranged on a bookshelf if (a) t
    7·1 answer
  • Find the product of the solutions of this equation 2x^2+26x+156=0
    10·1 answer
  • What is the circumference of this circle <br>​
    11·1 answer
  • Answer all of these please
    14·2 answers
  • Somebody please help ?
    14·1 answer
  • 15.3+1h=1.3−1h15, point, 3, plus, 1, h, equals, 1, point, 3, minus, 1, h h =h=h, equals
    6·2 answers
  • Find sin(α) in the triangle.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!