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
kaheart [24]
2 years ago
11

Question 4 of 10

Mathematics
1 answer:
dangina [55]2 years ago
8 0
The answer is For what rule describes a dilation with a scale factor is B
You might be interested in
Determine if the statement below is always, sometimes, or never true. There are 250 degrees in the sum of the interior angles of
ZanzabumX [31]
It would never be true.
5 0
3 years ago
Adult panda weights are normally distributed with a mean of 200 pounds and a standard deviation of 20 pounds. The largest pandas
earnstyle [38]
\mathbb P(X>250)=1-\mathbb P(X\le250)

\mathbb P(X\le250)=\mathbb P\left(\dfrac{X-200}{20}\le\dfrac{250-200}{20}\right)=\mathbb P(Z\le2.5)\approx0.9938

which means

\mathbb P(X>250)\approx1-0.9938=0.0062

so approximately 0.62% of pandas weight over 250 pounds.
7 0
3 years ago
Read 2 more answers
Find the length of the curve given by ~r(t) = 1 2 cos(t 2 )~i + 1 2 sin(t 2 ) ~j + 2 5 t 5/2 ~k between t = 0 and t = 1. Simplif
xxMikexx [17]

Answer:

The length of the curve is

L ≈ 0.59501

Step-by-step explanation:

The length of a curve on an interval a ≤ t ≤ b is given as

L = Integral from a to b of √[(x')² + (y' )² + (z')²]

Where x' = dx/dt

y' = dy/dt

z' = dz/dt

Given the function r(t) = (1/2)cos(t²)i + (1/2)sin(t²)j + (2/5)t^(5/2)

We can write

x = (1/2)cos(t²)

y = (1/2)sin(t²)

z = (2/5)t^(5/2)

x' = -tsin(t²)

y' = tcos(t²)

z' = t^(3/2)

(x')² + (y')² + (z')² = [-tsin(t²)]² + [tcos(t²)]² + [t^(3/2)]²

= t²(-sin²(t²) + cos²(t²) + 1 )

................................................

But cos²(t²) + sin²(t²) = 1

=> cos²(t²) = 1 - sin²(t²)

................................................

So, we have

(x')² + (y')² + (z')² = t²[2cos²(t²)]

√[(x')² + (y')² + (z')²] = √[2t²cos²(t²)]

= (√2)tcos(t²)

Now,

L = integral of (√2)tcos(t²) from 0 to 1

= (1/√2)sin(t²) from 0 to 1

= (1/√2)[sin(1) - sin(0)]

= (1/√2)sin(1)

≈ 0.59501

8 0
3 years ago
Simplify: (−2)3 · (−2)4 <br> A) (−2)12 <br> B) (−2)7 <br> C) 212 <br> D) 27
Dahasolnce [82]
Since both sides have a -2 in then you can pull it out making the equation -2(3*4) which equals -2(12) so A is correct
3 0
3 years ago
Read 2 more answers
Water weighs about 8.34 pounds per gallon. About how many ounces per gallon is the weight of the water?
NeX [460]
There are 16 ounces per pound so 16 x 8 is154 ounces then about 4 more ounces to get the .34 so in total 158 fl ounces∀
7 0
3 years ago
Other questions:
  • Ashley wants to join a cooking class. She is trying to decide which membership will be the best buy after 10 lessons. Which clas
    5·2 answers
  • Solve the inequality
    12·1 answer
  • To the nearest tenth, find the perimeter of ∆ABC with vertices A(-1,4), B(-2,1) and C(2,1).
    6·1 answer
  • What is 23/46 reduced
    7·2 answers
  • Cot(45-A)=tan2A+ sec2A​
    11·1 answer
  • What is the product of −212 and −312 ? Enter your answer as a mixed number, in simplified form, in the box.
    15·1 answer
  • Is 5/8 greater than or less than 5/16
    10·2 answers
  • PLEASE HELP ILL GIVE U BRAINLEST PLUS 50 POINTS IF U GET IT RIGHT
    13·2 answers
  • Use the drop-down menus to complete the statements to match the information shown by the graph.
    11·1 answer
  • If 1 day (24 hours) is equal to 1000 years, what does one minute equal?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!