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
vitfil [10]
3 years ago
11

I need help with this math problem. Please someone help me if they can.

Mathematics
2 answers:
My name is Ann [436]3 years ago
7 0
The equation for the surface are of a cylinder is 2pi(r)(h)+2pi(r)^2
SA=2 pi(4)(12.4)+2 pi(4)^2
The surface area is 412.2, which for you is rounded to 412 cm^2
Veronika [31]3 years ago
6 0
The answer is <span>412

hope this helps 
can i plz get brainliest </span>
You might be interested in
9. A box of cereal is packaged and sold at a local
emmasim [6.3K]

Answer:

288 Cubic Inches

Step-by-step explanation:

Assuming the cereal takes up 80% of the total volume of the box, you would take 80% of the total volume.

First, do Base x Width x Height for the volume of the box.

10 inches x 3 inches x 1 foot      (1 foot is 12 inches)

10 x 3 x 12 = 360

Now, take 80% of 360 cubic inches.

80% is 0.8 times a number

0.8 x 360 = 288

288 Cubic Inches

8 0
2 years ago
What is the quotient of 42 divided by 9124
Sunny_sXe [5.5K]
<span>The answer is 0.0046032441911442</span>
4 0
3 years ago
Write an expression for the calculation the difference of the products of 5 and 2 and 5 and 1
oee [108]
Let's review the terminology.  A product is what you get when you multiply two numbers.  So, the product of 5 and 2 is basically "5*2," and the product of 5 and 1 is "5*1."

The difference means when you subtract one from the other.  So, the difference of 5*2 and 5*1 means "(5*2)-(5*1)".  (Note: I put in parentheses to make sure the reader understands that 5*2 is separate from 5*1.  5*2-5*1 is confusing: you might not know what to do first!)

So, "(5*2)-(5*1)" can be your answer, OR you can simplify it further by actually doing the multiplication: "10-5".  If you want the answer, just subtract--the expression is equal to 5.

Answer: "<span>(5*2)-(5*1)" OR "10-5" OR "5"</span>
3 0
3 years ago
Help!! 50 points and brainliest!
Viktor [21]

Answer:

Second choice:

x=2t

y=4t^2+4t-3

Fifth choice:

x=t+1

y=t^2+4t

Step-by-step explanation:

Let's look at choice 1.

x=t+1

y=t^2+2t

I'm going to subtract 1 on both sides for the first equation giving me x-1=t. I will replace the t in the second equation with this substitution from equation 1.

y=(x-1)^2+2(x-1)

Expand using the distributive property and the identity (u+v)^2=u^2+2uv+v^2:

y=(x^2-2x+1)+(2x-2)

y=x^2+(-2x+2x)+(1-2)

y=x^2+0+-1

y=x^2

So this not the desired result.

Let's look at choice 2.

x=2t

y=4t^2+4t-3

Solve the first equation for t by dividing both sides by 2:

t=\frac{x}{2}.

Let's plug this into equation 2:

y=4(\frac{x}{2})^2+4(\frac{x}{2})-3

y=4(\frac{x^2}{4})+2x-3

y=x^2+2x-3

This is the desired result.

Choice 3:

x=t-3

y=t^2+2t

Solve the first equation for t by adding 3 on both sides:

x+3=t.

Plug into second equation:

y=(x+3)^2+2(x+3)

Expanding using the distributive property and the earlier identity mentioned to expand the binomial square:

y=(x^2+6x+9)+(2x+6)

y=(x^2)+(6x+2x)+(9+6)

y=x^2+8x+15

Not the desired result.

Choice 4:

x=t^2

y=2t-3

I'm going to solve the bottom equation for t since I don't want to deal with square roots.

Add 3 on both sides:

y+3=2t

Divide both sides by 2:

\frac{y+3}{2}=t

Plug into equation 1:

x=(\frac{y+3}{2})^2

This is not the desired result because the y variable will be squared now instead of the x variable.

Choice 5:

x=t+1

y=t^2+4t

Solve the first equation for t by subtracting 1 on both sides:

x-1=t.

Plug into equation 2:

y=(x-1)^2+4(x-1)

Distribute and use the binomial square identity used earlier:

y=(x^2-2x+1)+(4x-4)

y=(x^2)+(-2x+4x)+(1-4)

y=x^2+2x+-3

y=x^2+2x-3.

This is the desired result.

3 0
3 years ago
Read 2 more answers
5.26 x 10^6 in standard form <br><br>PLS HURRY I ONLY GOT 10 MINS LEFT
aleksandr82 [10.1K]

Answer:

5,260,000

Step-by-step explanation:

I don't know if this is right - you can try it!!

4 0
2 years ago
Other questions:
  • 18 take away negative 10 is wha
    5·2 answers
  • When you raise a number to the power with the exponent 1/2, you get its _____.
    14·2 answers
  • A television costs $450. During a special sale, it’s marked 1⁄3 off. What’s the sale price of the TV?
    11·2 answers
  • rodeney is burning a music CD . The CD holds at most 90 minutes of music . Rodney has already selected 55 minutes of music . wri
    9·1 answer
  • What is the first step in solving the quadratic equation x^2=9 over 16
    9·1 answer
  • (2x+2x)+(5x+5x)+(1+1) simplified
    12·1 answer
  • The product of the reaction between ethanal and ammonia are what. ​
    12·1 answer
  • Cathleen ran a total of 16 miles. She ran exactly 2 2/3 miles each day. How many days did it take her to run 16 miles
    12·1 answer
  • Carl types 180 words in 2 minutes. At this rate, how many words can Carl type in 5 minutes?
    10·2 answers
  • ______ an antiques dealer, paid $150 for a painting. She wants to sell the painting for
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!