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Oksi-84 [34.3K]
3 years ago
11

Could someone please help me

Mathematics
1 answer:
kakasveta [241]3 years ago
6 0
The formula for a cone is
v = \pi \times  {r}^{2}  \times ( \frac{h}{3} )
insert 20 for your height and rearrange the formula to find the radius. Leave a comment if you need more help.
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All prime numbers are odd change to conditional statement
patriot [66]
Not all prime numbers are odd, 2 is not odd and it's a prime number
8 0
3 years ago
Read 2 more answers
HELP!!<br>Find the third term of (x^2+3y)^3
lana66690 [7]

Answer:

T_{3}=27{x}^{2}y^2

Step-by-step explanation:

The given binomial expression is:

( {x}^{2} + 3y)^{3}

When we compare to:

{(a +b)}^{n}

We have

a =  {x}^{2}

b = 3y \\ n = 3

The nth term is given by;

T_{r+1}=^nC_ra^{n-r}b^r

To find the 3rd term, we put:

r + 1 = 3 \\ r = 2

We substitute into the formula to get:

T_{3}=^3C_2( {x}^{2} )^{3-2}(3y)^2

We simply:

T_{3}=3( {x}^{2} )^{1} \times 9y^2

T_{3}=27{x}^{2}y^2

3 0
3 years ago
Suppose the diameter at breast height (in.) of a certain type of tree is distributed normally with a mean of 8.8 and a standard
SpyIntel [72]

Answer:14

Step-by-step explanation:

beacsue i just kno i have been working on it ofro days 7+7 1+7  

and plase read the pargraphh if you don't i will (; , cryyyyyyyyyyyyyyyyyyyingggggggggggggg

aragraphs are the building blocks of papers. Many students define paragraphs in terms of length: a paragraph is a group of at least five sentences, a paragraph is half a page long, etc. In reality, though, the unity and coherence of ideas among sentences is what constitutes a paragraph. A paragraph is defined as “a group of sentences or a single sentence that forms a unit” (Lunsford and Connors 116). Length and appearance do not determine whether a section in a paper is a paragraph. For instance, in some styles of writing, particularly journalistic styles, a paragraph can be just one sentence long. Ultimately, a paragraph is a sentence or group of sentences that support one main idea. In this handout, we will refer to this as the “controlling idea,” because it controls what happens in the rest of the paragraph.

8 0
3 years ago
What is the answer to <br> 9y-6y+y=
babunello [35]
9y - 6y = 3y
3y + y = 4y

answer: 4y
4 0
3 years ago
Read 2 more answers
A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. Step 2 of 2 :
Diano4ka-milaya [45]

Answer: (0.120,0.160)

Step-by-step explanation:

Given : Sample size : n=815

Number of disks were not defective =701

Then , the number of disks which are defective = 815-701=114

Now, the proportion of disks which are defective : p=\dfrac{114}{815}\approx0.14

Significance level : \alpha: 1-0.9=0.1

Critical value : z_{\alpha/2}=1.645

The confidence interval for population proportion is given by :-

p\pm\ z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\=0.14\pm(1.645)\sqrt{\dfrac{(0.14)(1-0.14)}{815}}\\\\\approx0.14\pm0.020=(0.14-0.020,0.14+0.020)=(0.120,0.160)

Hence, the 90% confidence interval for the population proportion of disks which are defective = (0.120,0.160)

7 0
3 years ago
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