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
Lesechka [4]
4 years ago
6

What is the answer to number 4?

Mathematics
1 answer:
Ugo [173]4 years ago
7 0
I believe the right answer is b
You might be interested in
Hi!
Elina [12.6K]

Answer:

404.09x cm³ (to 5 s.f.),

where x is the unknown height of the shape.

Step-by-step explanation:

Volume of the shape

= base area × height

= (large semicircle- small semicircle) × thickness of shape

Area of circle= \pi {r}^{2}

Area of semicircle= \frac{1}{2} (\pi)( {r}^{2} )

Diameter of small circle= 14

Radius= diameter ÷2

radius= 14 ÷2

radius = 7 cm

Area of small semicircle

=  \frac{1}{2} (\pi)( {7}^{2} ) \\  =  \frac{49}{2} \pi

Radius of large semicircle

= 35 ÷2

= 17.5 cm

Area of large semicircle

= \frac{1}{2} (\pi)( {17.5}^{2} ) \\  =  \frac{1225}{8} \pi

Base area of shape

= \frac{1225}{8}\pi  -  \frac{49}{2} \pi \\  =  \frac{1029}{8} \pi

Since the height if the shape is not given, I'm afraid I cant help you find the volume.

Let the height of the shape be x cm.

Volume of shape= \frac{1029x}{8} \pi \: cm^{3}

3 0
3 years ago
I NEED HELP! Find the distance from(-4,4) to the line defined by y= -2x+6.Express as a radical or a number rounded to the neares
marysya [2.9K]
In radical form, the shortest distance from ( -4 , 4 ) and the line y = -2x + 6 is 2√5 units.


Attached below is the calculation to arrive at the answer as well as a graph.

8 0
3 years ago
Prove that the max and min values of asinX + bcosX are respectively sqrt.(a^2+b^2) and -sqrt(a^2+b^2) .
strojnjashka [21]
The solution to the problem is as follows:
let y = asinx + bcosx 
<span>
dy/dx = acosx - bsinx </span>
<span>
= 0 for max/min </span>
<span>
bsinx = acosx </span>
<span>
sinx/cosx = a/b </span>
<span>
tanx = a/b </span>
<span>
then the hypotenuse of the corresponding right-angled triangle is √(a^2 + b^2) </span>

<span>the max/min of y occurs when tanx = a/b </span>
<span>
then sinx = a/√(a^2 + b^2) and cosx = b/√(a^2 + b^2) </span>
<span>
y = a( a/√(a^2 + b^2)) + b( b/√(a^2 + b^2)) </span>
<span>
= (a^2 + b^2)/√(a^2 + b^2) </span>
<span>
= √(a^2 + b^2)</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
6 0
3 years ago
May someone help me on this please please
tekilochka [14]
22.25 fluid ounces. Again, it may or may not be completely correct.
5 0
3 years ago
Help me pleaseeee!
amm1812

Answer:

Percent is a fraction where the denominator is represented by 100 or 100 parts make one whole

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Write the logarithmic equation in exponential form log4 (1/4)^3 =-3
    7·2 answers
  • Elizabeth had 12 stamps. She decided to write letters to some of her relatives. After she sent herietters, she had 6 stamps left
    6·1 answer
  • Hey ITSBLESIVGURL ill text you after school also what is 22+77?
    10·1 answer
  • What is the area of the kite ​
    9·2 answers
  • a chemist has one solution that is 60% acid into second does 40% acid how many gallons of each should be mixed together to get 2
    13·1 answer
  • Solve for x!!!! (see attached picture) HELP!!!
    5·1 answer
  • What is the quotient<br> when dividing 16 by 4/5<br>​
    7·1 answer
  • A model car travels 20 meters in 15 seconds how many will it travel in 45 seconds ​
    12·2 answers
  • Identify 3 major arcs of circle that contain point A?
    11·1 answer
  • Translate the sentence into an equation.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!