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
tankabanditka [31]
3 years ago
13

C.9 D.36 Geometry math question no Guessing and Please show work

Mathematics
1 answer:
liq [111]3 years ago
8 0

AQ : QE = 2 : 1 ( property of a centroid of a triangle)

Therefore 2/1 = 18 / QE

2QE = 18

QE = 9 (answer)

You might be interested in
The curve given by x=sin(t),y=sin(t+sin(t)) has two tangent lines at the point (x,y)=(0,0). List both of them in order of increa
SOVA2 [1]

Answer:

y = 0

y =2x

Step-by-step explanation:

Given parametric equations:

x (t) = sin (t)

y (t) = sin (t + sin (t))

The slope of the curve at any given point is given by dy / dx we will use chain rule to find dy / dx

(dy / dx) * (dx / dt) = (dy / dt)

(dy / dx) = (dy / dt) / (dx / dt)

Evaluate dx / dt and dy / dt

dx / dt = cos (t)

dy / dt = cos (t + sin (t)) * (1+cos (t))

Hence,

dy / dx = (1+cos(t))*cos(t + sin (t))) / cos (t)

@Given point (x,y) = 0 we evaluate t

0 = sin (t)

t = 0 , pi

Input two values of t and compute dy / dx

@ t = 0

dy / dx = (1 + cos (0))*cos (0 + sin (0))) / cos (0)

dy / dx = (1+1)*(1) / (1) = 2 @ t = 0

@t = pi

dy / dx = ( 1 + cos (pi))* cos (pi + sin (pi)) / cos (pi)

dy / dx = (1-1) * (-1) / (-1) = 0 @ t = pi

The corresponding gradients are 0 and 2 in increasing order and their respective equations are:

y = 2x

y = 0

5 0
3 years ago
Original volume: 169 3/4 cubic inches What is the volume of the box if it is scaled down by a factor of 1/10?
kirza4 [7]

Answer:

\10 of its starting number

ω⇒ ∧

      ∨       i am very good at this

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please needed as soon as possible thank you
stich3 [128]

Answer:

43. = \frac{.0045}{100}

44. 4\frac{9}{10}

45. 8

Step-by-step explanation:

43. 0.45% = .0045

      = \frac{.0045}{100}

44. \frac{1}{2} • 9\frac{4}{5}

    = 4\frac{9}{10}

45. VIII = 8

3 0
3 years ago
Rewrite in interval notation:<br> all real numbers that are greater than -22,
Naily [24]

Answer:

Step-by-step explanation:

all real numbers that are greater than -22 : x >  -22

interval notation: ]- 22 ; + ∞  [

3 0
3 years ago
What is the constant of proportionality for y=5/8x
Sidana [21]

Answer: 5/8

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Given: ∠TUW ≅ ∠SRW; RS ≅ TU Prove: ∠RST ≅ ∠UTS Complete the paragraph proof: It is given that ∠TUW ≅ ∠SRW and RS ≅ TU. Because ∠
    9·2 answers
  • Why do axioms exist in geometry
    8·1 answer
  • The lifetime of a battery in a certain application is normally distributed with mean μ = 16 hours and standard deviation σ = 2 h
    5·1 answer
  • -4 + x / 2 = 3 urgent!
    7·1 answer
  • Find the indicated value. Use either half angle formulas or sum and difference formulas.
    6·1 answer
  • Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -8x^2 + 8x + 5.
    12·1 answer
  • the ratio of coins to notes in a bag is 3 to 8. if there are a total 22 items,then how many notes arr there?​
    5·1 answer
  • When y = 7, what is the value of x?
    9·1 answer
  • "If a number divided by 4 leaves remainder 2 or 3", then which one is the correct statement 'n why?
    11·1 answer
  • I have a pink eye and I’m in class and it hurts bad when I look at the screen … and it starts to water .. what can I do ?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!