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
givi [52]
3 years ago
5

Multiply.

Mathematics
1 answer:
Lena [83]3 years ago
6 0
<span>(4.214) x (3.06) = 12.89484 and can be rounded up to 12.9</span>
You might be interested in
How to change 7.25% into a decimal?
nika2105 [10]

Divide by 100

0.0725

Hope I helped you :)

5 0
3 years ago
Read 2 more answers
Plz help :/ I need to show my work too.
Goryan [66]
The answer is A:8 :)
6 0
3 years ago
You spin the spinner and flip a coin. Find the probability of the compound event.
Nitella [24]

Answer:

1/10

Step-by-step explanation:

The probability of flipping heads is 1 out of 2 or 1/2

The probability of getting a 5 on the spinner is 1/5

The probability of getting both is 1/2  *  1/5 = 1/10

You should try this out by listing all the ways this can happen.

Spinner         Coin

1                     H

2                    H

3                    H

4                    H

<em><u>5                    H</u></em>

1                     T

2                    T

3                    T

4                    T

5                    T

There are 10 ways of this problem giving results. Only 1 of them is correct.

5 0
3 years ago
A rectangular field with one side along a river is to be fenced. Suppose that no fence is needed along the river, the fence on t
Andreas93 [3]

Answer:

a) Side Parallel to the river: 200 ft

b) Each of the other sides: 400 ft

Step-by-step explanation:

Let L represent side parallel to the river and W represent width of fence.

The required fencing (F) would be F=L+2W.

We have been given that field must contain 80,000 square feet. This means area of field must be equal to 80,000.

LW=80,000...(1)

We are told that the fence on the side opposite the river costs $20 per foot, and the fence on the other sides costs $5 per foot, so total cost (C) of fencing would be C=20L+5(2W)\Rightarrow 20L+10W.

From equation (1), we will get:

L=\frac{80,000}{W}

Upon substituting this value in cost equation, we will get:

C=20(\frac{80,000}{W})+10W

C=\frac{1600,000}{W}+10W

C=1600,000W^{-1}+10W

To minimize the cost, we need to find critical points of the the derivative of cost function as:

C'=-1600,000W^{-2}+10

-1600,000W^{-2}+10=0

-1600,000W^{-2}=-10

-\frac{1600,000}{W^2}=-10

-10W^2=-1,600,000

W^2=160,000

\sqrt{W^2}=\pm\sqrt{160,000}  

W=\pm 400

Since width cannot be negative, therefore, the width of the fencing would be 400 feet.

Now, we will find the 2nd derivative as:

C''=-2(-1600,000)W^{-3}

C''=3200,000W^{-3}

C''=\frac{3200,000}{W^3}

Now, we will substitute W=400 in 2nd derivative as:

C''(400)=\frac{3200,000}{400^3}=\frac{3200,000}{64000000}=0.05

Since 2nd derivative is positive at W=400, therefore, width of 400 ft of the fencing will minimize the cost.

Upon substituting W=400 in L=\frac{80,000}{W}, we will get:

L=\frac{80,000}{400}\\\\L=200

Therefore, the side parallel to the river will be 200 feet.

4 0
3 years ago
Pls help you will get brainliest
cupoosta [38]

Answer:

5/6

Step-by-step explanation:

1/6 + 1/6 = 2/6 TYPE A wood

1/4 + 1/4 = 2/4 TYPE B wood

2/6 + 2/4= ...

2/4 reduces to ?/2

That would be 1/2 because 4 divided by 2 is 2 & 2 divided by 2 is 1.

1/2= ?/6

Its 3/6 because we did 2 x 3 to get 6 and we do the same to the number 1. So we do 1 x 3 = 3

Now we have 3/6 + 2/6!

This is very easy now! We just do 2 + 3 which gets 5.

OUR ANSWER IS 5/6!! Hope this helps! plz mark as brainliest!

8 0
3 years ago
Other questions:
  • Who will go out with me?<br> a:William <br> b:Oscar <br> c:oliver
    12·2 answers
  • Is 2y=-8x a direct variation
    10·1 answer
  • PLEASE HELP!!!!!!!!!! write a estimate for 2 1/3 - 2/3
    7·2 answers
  • Joan can mow 6 acre field in 2 hours. how long would it take her to mow a 3 acre field
    5·2 answers
  • What is 4 . 9 equal 9 . 4
    11·1 answer
  • Hurry helpppppppppp please guys
    14·1 answer
  • Simplify the expression:<br><br> –3(–2h + 3) =
    14·2 answers
  • If loss is loss percent and cost price in CP what will be SP?​
    9·2 answers
  • Is 2(6-3x)+x equivalent to 2(3x)+x?
    13·1 answer
  • Write a unit rate for the situation. Round to the nearest hundredth if necessary. 210 heartbeats in 3 minutes
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!