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
Brut [27]
3 years ago
9

What is 66 2/3% of 39 ? please explain thoroughly please and thank you!

Mathematics
2 answers:
Rom4ik [11]3 years ago
7 0
66 2/3% is the same thing as saying 2/3, therefore 2/3 of 39, given that 39 is divisible by 3, would be 26.  Have a nice day! :)
miskamm [114]3 years ago
5 0
<span> 66 2/3 x 39 = 39/3 x 2 = 13 x 2 = 26
this is quite difficult but i got 26

</span>
You might be interested in
Write the perimeter of the triangle in simplest form<br><br> can i please get help
Zepler [3.9K]
This is easy. You just add all the like terms
8 0
2 years ago
PLEASE HELP!!!! 20 POINTS!!!!
galben [10]
These are two questions and two answers.

Question 1) Which of the following polar equations is equivalent to the parametric equations below? 

<span> x=t²
y=2t</span>

Answer: option <span>A.) r = 4cot(theta)csc(theta)
</span>

Explanation:

1) Polar coordinates ⇒ x = r cosθ and y = r sinθ

2) replace x and y in the parametric equations:

r cosθ = t²
r sinθ = 2t

3) work r sinθ = 2t

r sinθ/2 = t 
(r sinθ / 2)² = t²

4) equal both expressions for t²

r cos θ = (r sin θ / 2 )²

5) simplify

r cos θ = r² (sin θ)² / 4

4 = r (sinθ)² / cos θ

r = 4 cosθ / (sinθ)²

r = 4 cot θ csc θ ↔ which is the option A.


Question 2) Which polar equation is equivalent to the parametric equations below?

<span> x=sin(theta)cos(theta)+cos(theta)
y=sin^2(theta)+sin(theta)</span>

Answer: option B) r = sinθ + 1


Explanation:

1) Polar coordinates ⇒ x = r cosθ, and y = r sinθ

2) replace x and y in the parametric equations:

a) r cosθ = sin(θ)cos(θ)+cos(θ)
<span> b) r sinθ =sin²(θ)+sin(θ)</span>

3) work both equations

a) r cosθ = sin(θ)cos(θ)+cos(θ) ⇒ r cosθ = cosθ [ sin θ + 1]  ⇒ r = sinθ + 1


<span> b) r sinθ =sin²(θ)+sin(θ) ⇒ r sinθ = sinθ [sinθ + 1] ⇒ r = sinθ + 1
</span><span>
</span><span>
</span>Therefore, the answer is r = sinθ + 1 which is the option B.
6 0
2 years ago
Read 2 more answers
Describe how to find the sums -4+2 and -4+(-2) on a number line.
kifflom [539]

For -4+2, plot -4, then move to the right 2 spaces. You should land on -2.

For -4+(-2), plot -4 then move the left 2 spaces. You should land on -6.

3 0
2 years ago
Read 2 more answers
BRAINLIEST
Anna71 [15]

Answer:

h(x)

h(x)

f(x) g(x) h(x)

Step-by-step explanation:

Edge 2020

~theLocoCoco

6 0
3 years ago
Please help me figure out this problem
tiny-mole [99]

Answer:

f(g(x))=f\left(-\dfrac{3x+21}{5}\right)=x\\\\g(f(x))=g\left(-\dfrac{5}{3}x-7\right)=x

Step-by-step explanation:

Fill in the given expressions and simplify.

f(g(x))=f\left(-\dfrac{3x+21}{5}\right)=-\dfrac{5}{3}\left(-\dfrac{3x+21}{5}\right)-7\\\\=\left(-\dfrac{5}{3}\right)\left(-\dfrac{3x}{5}\right)-\left(\dfrac{5}{3}\right)\left(-\dfrac{21}{5}\right)-7\\\\=\dfrac{15x}{15}+\dfrac{5\cdot 21}{3\cdot 5}-7=x+7-7=x

Going the other way, we have ...

g(f(x))=\displaystyle -\frac{3\left(-\frac{5}{3}x-7\right)+21}{5}=-\frac{-5x-21+21}{5}=x

5 0
3 years ago
Other questions:
  • Greg withdrew $37 from his account on Wednesday and then deposited $15 in his account on Thursday. On Friday, he withdrew $120.
    10·1 answer
  • ............help plsss T.T
    13·2 answers
  • I need help on this!
    8·1 answer
  • In chemistry lab, there are 9.52 grams of powdered substance in a container. Max needs to place substance into each of 3 glass p
    14·1 answer
  • Three friends grow groups of sunflowers. Some think that Anna’s flowers are the tallest because the mean height of her flowers i
    5·1 answer
  • Someone help please want <br> asap
    14·1 answer
  • Jim rent a car for the weekend can choose 1 of 2 plans the first plan has $55 initial cost an additional 0.80 per mile driven T
    7·1 answer
  • Given f(x)=x2+2x−8, find f(−2).
    15·2 answers
  • My head hurts help will ya?​
    8·2 answers
  • A football is thrown into the air from an initial height of 4 feet with an upward velocity of 46 ft/sec. The function h = -16t²
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!