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
Alex17521 [72]
3 years ago
5

Please help me!!! will give brainlists!

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
5 0
You have a rectangular prism on your hands. The formula for the volume of a rectangular prism is

(B/2) • l

Where B is the area of the base, and l is the length.

If you notice, you do NOT have the height of the triangle. However, you know that it is an equilateral triangle. So, you may split the triangle into two. Once you do, you can see that it is a right triangle. It’s hypotenuse is 3. If you know your triangles, you will realize that this is a 30 60 90 triangle. Therefore, the height will be 1.5 * sqrt(3)

So, to get B...

3 * 1.5sqrt(3)
4.5sqrt(3)
(Divide by 2)
2.25sqrt(3)
O
(9sqrt(3))/4
Multiply by the length of the prism, 6

This is your final answer in fraction form

27
— 2^rt(3)
2
You might be interested in
Item 5
miv72 [106K]

Answer:

A. $41.40

Step-by-step explanation:

Take 36 multiply by the decimal percentage (.15) =5.4  then simply add

5 0
3 years ago
Find the area of the composite figure.
Bad White [126]

Answer:

Area = 139.27 m²

Step-by-step explanation:

Area of the composite figure = area of rectangle + area of semicircle

= (L*W) + ½(πr²)

L = 10 m

W = 10 m

r = ½ of 10 = 5 m

Plug in the values

Area = (10*10) + ½(π*5²)

Area = 100 + 39.27

Area = 139.27 m²

7 0
3 years ago
A dog breeder would like to know how many Dalmatian puppies are typically born in a litter. He conducts some research and select
podryga [215]

Answer:

c. 6.2 ± 2.626(0.21)

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 101 - 1 = 100

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 100 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.626

The confidence interval is:

\overline{x} \pm M

In which \overline{x} is the sample mean while M is the margin of error.

The distribution of the number of puppies born per litter was skewed left with a mean of 6.2 puppies born per litter.

This means that \overline{x} = 6.2

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.626\frac{2.1}{\sqrt{101}} = 2.626(0.21)

In which s is the standard deviation of the sample and n is the size of the sample.

Thus, the confidence interval is:

\overline{x} \pm M = 6.2 \pm 2.626(0.21)

And the correct answer is given by option c.

5 0
3 years ago
Help!!! Which one no need to explain!
azamat

Answer: A add the equations and C: Subtract the bottom equation from the top equation.

Step-by-step explanation: By adding the equations, you are left with

12x=8 which successfully eliminates the y values and subracting the bottom equation from the top equation.

Hope this helps!  :)

5 0
4 years ago
What does h(40)=1820 mean in terms of the problem ? Help please
Bess [88]

Answer:h stands for hours so if they worked 40 hours they would get paid 1820 dollars

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Can you plz help me
    11·1 answer
  • What are the most important questions you must ask when considering whether to buy or lease a car? Check all that apply. How muc
    15·2 answers
  • The length of a rectangle is 4 m longer than its width. If the perimeter of the rectangle is 60 m, find its length and width
    6·1 answer
  • Write -4i+(1/4-5i)-(-3/4+8i)+17i as a complex number in the standard form
    8·1 answer
  • Help im stupid plzzzzz
    6·1 answer
  • Write 2^60 as an exponent with a base of: 4 , 16<br><br><br> pls explain why you got it, thx!
    9·1 answer
  • If you spin the spinner 50 times, how many times do you expect it to land on 10?
    7·2 answers
  • Evaluate this expression 5•10^2+3<br><br> A.) 2503<br><br> B.) 103<br><br> C.) 503<br><br> D.) 300
    7·2 answers
  • Factor the GCF out of each term of the polynomial.
    12·1 answer
  • PLEASEEEEEE QUICKKKKKK
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!