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
enot [183]
2 years ago
15

Whoever’s right gets brainiest

Mathematics
2 answers:
VLD [36.1K]2 years ago
7 0

Answer:

The last one is correct.

Korolek [52]2 years ago
6 0

Answer:

d

Step-by-step explanation:

brainliest plEASE

You might be interested in
A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius o
Natasha_Volkova [10]

Answer:

<h2>A) 3 cm</h2>

Step-by-step explanation:

The formula of a volume of a cylinder:

V=\pi r^2H

r - radius

H - height

We have r = 1cm and H = 21cm. Substitute:

V=\pi(1^2)(21)=21\pi\ cm^3

The formula of a cone:

V=\dfrac{1}{3}\pi r^2H

r - radius

H - height

We have V = 21π cm³ and H = 7cm. Substitute:

\dfrac{1}{3}\pi(r^2)(7)=21\pi        <em>divide both sides by π</em>

\dfrac{1}{3}(7)(r^2)=21         <em>divide both sides by 7</em>

\dfrac{1}{3}r^2=3         <em>multiply both sides by 3</em>

r^2=9\to r=\sqrt9\\\\r=3\ cm

5 0
2 years ago
Read 2 more answers
Can someone explain this? :)
Alchen [17]

I'll do part (a) to get you started.

The angle 'a' pairs up with the 123 degree angle as a corresponding angle pair. Due to the parallel lines, the corresponding angles are congruent. Therefore a = 123.

We also see that b = 123 as well since a = b (they are vertical angles).

Notice how angle c is adjacent to the 123 degree angle. These two angles form a straight line, so they must add to 180 degrees.

c+123 = 180

c = 180-123

c = 57

-------------------------

To summarize, we have these three angles

a = 123

b = 123

c = 57

6 0
3 years ago
Read 2 more answers
20 POINTS!!!!
vladimir2022 [97]

Answer: 38 cm

Step-by-step explanation:

8 0
3 years ago
#15 I don’t know how to do the proof
Mila [183]
What's the question.....
3 0
3 years ago
Which equations best shows 48 is a multiple of 3
german
3 = 48 divided by 16


Mark brainliest please


Hope this helps you
6 0
2 years ago
Read 2 more answers
Other questions:
  • The correct answer to the question :) *number lines*
    9·2 answers
  • ASAP 30 + Brainliest <br><br> Please only solve 2 - 5
    8·2 answers
  • How to shade a grid for 1.96
    9·1 answer
  • Can someone help me with this problem!
    5·2 answers
  • I have 47 missing assignments .
    13·1 answer
  • Evan has a loyalty card good for a discount at his local hardware store. The item he
    6·1 answer
  • Find the area of the trapezoid shown and choose the appropriate result
    13·1 answer
  • What is the number name of (i)46,25,689and (ii)658,902,250​
    9·1 answer
  • What is the sum of the finite arithmetic series? (–5) + 0 + 5 + 10 + ... + 65 A. 900 B. 455 C. 450 D. 445
    9·1 answer
  • Which of the following systems of equations has infinitely many solutions?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!