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
My name is Ann [436]
3 years ago
14

Please do quickly! Asap! Brainleist, points!

Mathematics
1 answer:
Ainat [17]3 years ago
4 0

Answer:

not sure sowy

Step-by-step explanation:

You might be interested in
What expression is equivalent to [r^7]^6 <br> A. r^42<br> B. 1/r^42<br> C. -7r^6<br> D. 1/7
Elan Coil [88]

Answer:

A.r⁴²

Step-by-step explanation:

I think this will help you

7 0
3 years ago
A plane decides to travel along AB towards the North with a velocity of V.
Maru [420]

Step-by-step explanation:

The wind has a speed of w and a direction α with the vertical.  The x component of that speed is w sin α.  The y component is -w cos α.

In order to stay on the north trajectory AB, the plane must have a horizontal speed of -w sin α.  The plane's speed is v, so using Pythagorean theorem, the y component of the plane's speed is:

v² = (-w sin α)² + vᵧ²

v² = w² sin²α + vᵧ²

vᵧ = √(v² − w² sin²α)

The total vertical speed is therefore √(v² − w² sin²α) − w cos α.

If a is the length of AB, then the time is:

t = a / [√(v² − w² sin²α) − w cos α]

To rationalize the denominator, we multiply by the conjugate.

t = a / [√(v² − w² sin²α) − w cos α] × [√(v² − w² sin²α) + w cos α] / [√(v² − w² sin²α) + w cos α]

t = a [√(v² − w² sin²α) + w cos α] / (v² − w² sin²α − w² cos²α)

t = a [√(v² − w² sin²α) + w cos α] / (v² − w²)

8 0
3 years ago
15 point help asap marking brainlest!!!!!!!!!!!!!!
ziro4ka [17]

slope =(y2-y1)/(x2-x1)

m=(-1-5)/(1--1)

m=-6/2

m=-3

y-y1=m(x-x1)  point slope form

y-5 = -3 (x--1)

y-5 = -3 (x+1)

distribute

y-5 = -3x -3

add 5 to each side

y = -3x+2

Choice D


4 0
3 years ago
Read 2 more answers
Assumptions of a regression model can be evaluated by plotting and analyzing the ____________
Gala2k [10]

The assumptions of a regression model can be evaluated by plotting and analyzing the error terms.

Important assumptions in regression model analysis are

  1. There should be a linear and additive relationship between dependent (response) variable and independent (predictor) variable(s).
  2. There should be no correlation between the residual (error) terms. Absence of this phenomenon is known as auto correlation.
  3. The independent variables should not be correlated. Absence of this phenomenon is known as multi col-linearity.
  4. The error terms must have constant variance. This phenomenon is known as homoskedasticity. The presence of non-constant variance is referred to heteroskedasticity.
  5. The error terms must be normally distributed.

Hence we can conclude that the assumptions of a regression model can be evaluated by plotting and analyzing the error terms.

Learn more about regression model here

brainly.com/question/15408346

#SPJ4

4 0
2 years ago
Estimate.Then find the differences and write it in simplest form.
Rama09 [41]
D . internal............
7 0
3 years ago
Other questions:
  • Solve and Graph -x+4y=-16
    12·1 answer
  • How do you solve this a -2a/5=3
    12·1 answer
  • 1. (39 x 5)
    5·1 answer
  • Your total gas bill for one week was 15.43 , how much was it for one month
    9·1 answer
  • Circle the odd number.<br> 2<br> 6<br> 10<br> 17
    5·2 answers
  • Identify this statement in scientific notation... 0.0345
    5·2 answers
  • A printer is printing photos. For every 8 photos, the printer takes 2 minutes. Complete the table below showing the number of ph
    5·1 answer
  • Can y’all help me I know it’s easy but still 2×5.6÷2.8+3.5
    11·2 answers
  • (‼️‼️I WILL MARK BRAINLIEST PLEASE HELP‼️‼️)Dilate the figure by the scale factor. Then enter
    14·1 answer
  • What is the ratio for the volumes of two similar cylinders, given that the ratio of their heights and radii is 2:3?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!