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2 years ago

Need help with all of them ASAP

Mathematics

2 answers:

spayn [35]2 years ago

8 0

It’s a positive correlation because it’s moving upwards.

as the number of gold medals increase, the number of silver medals increase because you can clearly see that happening on the graph.

a reasonable number of silver medals won by a county who won 8 gold medals would also probably be around 8 because the correlation is positive, so it needs to move upwards.

a reasonable number of silver medals won by a county who won 13 gold medals would also probably be around 13 because the correlation is positive, so it needs to move upwards.

Nina [5.8K]2 years ago

7 0

yo sento Yo no speak English

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A television costs $270.25 including 15% vat. How much of the cost is tax?

Nikitich [7]

115% of the price is 270,25
115*x/100=270,25
x=270,25*100/115
x=235 $ is the price

270,25-235= 35,25 $ is the tax

8 0

3 years ago

Which of the following statements are true ? Check all that apply

Elden [556K]

Answer:

Options A) and E)

Step-by-step explanation:

If you use Ruffini's method for polynomials, you can find the roots.

The given picture shows us the first root of the polynomial $5x^{2}-16x+12=0$ wich is 2.

Thus, the original polynomial can be written as

$(x-2)*(5x-6)=0$

Here, you can notice that (x-2) is a factor

3 0

3 years ago

Just go down the row and say yes no yes no in order!you don't have to type the whole thing out

tangare [24]

Answer:

1) yes

2) no

3) yes

4)no

5)no

Step-by-step explanation:

8 0

2 years ago

Samples of a cast aluminum part are classified on the basis of surface finish (in microinches) and edge finish. The results of 1

liubo4ka [24]

Answer:

a) P (A)= 88/102= 0.8627

(b) P (B)= 89/102= 0.8725

c) P (A`) = 14/102 = 0.1372

(d) P (A∩B) = 84/102 =0.8235

(e) P(AUB)= 93/102 = 0.9117

(f)P (A`UB) = 98/102= 0.96078

Step-by-step explanation:

edge

finish excellent good Total

<u>(A )surface finish excellent 84 4 88</u>

good ( B) ⇵ 5 9 14

Total 89 13 102

a) Upper P left-parenthesis Upper A right-parenthesis equals

P (A)= 88/102= 0.8627

All the elements of set A = 84+4= 88

(b) Upper P left-parenthesis Upper B right-parenthesis equals

P (B)= 89/102= 0.8725

All the elements of set B = 84+5= 89

c) Upper P left-parenthesis Upper A prime right-parenthesis equal

P (A`) = 14/102 = 0.1372

All the elements of Universal set U which are not elements of set A = 102- 88= 14

(d) Upper P left-parenthesis Upper A intersection Upper B right-parenthesis equals

P (A∩B) = 84/102 =0.8235

Only those elements of set A and set B which are common

(e) Upper P left-parenthesis Upper A union Upper B right-parenthesis equals

P(AUB)= 93/102 = 0.9117

Totalling elements of set A and B= 88+5= 93

(f) Upper P left-parenthesis Upper A prime union Upper B right-parenthesis equals

P (A`UB) = 98/102= 0.96078

All the elements of Universal set U which are not elements of set A and the elements of Set B = 5+9+ 84= 98

6 0

3 years ago

The solution to an inequality is (–∞, 6.5]. Is 6.5 a solution to the inequality? Explain your answer. The solution includes numb

Korvikt [17]

Answer:

Because a bracket is used, the solution includes $6.5$

The solution includes numbers from negative infinity to $6.5$

Step-by-step explanation:

we know that

If the solution for an inequality is (–∞, 6.5]

then

$x\leq 6.5$

The solution is all real numbers less than or equal to $6.5$

Because a bracket is used, the solution includes $6.5$

The solution includes numbers from negative infinity to $6.5$

7 0

3 years ago

Read 2 more answers