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3 years ago

Need help with all of them ASAP

Mathematics

2 answers:

spayn [35]3 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]3 years ago

7 0

yo sento Yo no speak English

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Factorise . (x+2) ²-6 (x+ 2) +9

soldier1979 [14.2K]

Answer:

(x-1)(x-1)

Step-by-step explanation:

hello :

(x+2) ²-6 (x+ 2) +9 =(x+2) ²-2×(3) (x+ 2) +3²

by identity : (a-b)² = a²-2ab+b²

let : a=x+2 and b= 3

(x+2) ²-6 (x+ 2) +9 =(x+2) ²-2×(3) (x+ 2) +3²= ((x+2)-3)²= (x+2-3)² = (x-1)²=

(x-1)(x-1)

4 0

4 years ago

Lol this again really need answers

padilas [110]

Answer:

the middle one

Step-by-step explanation:

y/x

and so 6/8 = y/16

4 0

3 years ago

The line passes through the point (-2,-5) and has a slope of -3.

JulsSmile [24]

Answer:

y = - 3x -11

Step-by-step explanation:

(x₁ , y₁) = (-2 , -5) & m = -3

y - y₁ = m (x - x₁)

y - [-5] = (-3)(x -[-2])

y + 5 = (-3)(x + 2)

y + 5 = -3x - 6

y = -3x - 6 - 5

y = - 3x -11

4 0

3 years ago

Jenny has some tiles in a bag. The tiles are of three different colors: purple, pink, and orange. Jenny randomly pulls a tile ou

pickupchik [31]

The answer would probably be c.

5 0

3 years ago

Verifique se os numeros 15,20 e 30 sao diretamente proporcionais aos numeros 24,32 e 48

Vikki [24]

We are given to check

whether these numbers are proportional

we know that any set of numbers are proportional when their ratios are equal

so, firstly we will ratios

First set of numbers:

We are given first set of numbers as 15 , 20 and 30

so, it's ratio is

$15:20:30$

now, we can simplify it

$5\times 3:5\times 4:5\times 6$

Since, common factor is 5

so, we can cancel 5

and we get

$3:4:6$

Second set of numbers:

We are given first set of numbers as 24 , 32 and 48

so, it's ratio is

$24:32:48$

now, we can simplify it

$8\times 3:8\times 4:8\times 6$

Since, common factor is 8

so, we can cancel 8

and we get

$3:4:6$

We can see that both sets of numbers are having same ratios

so, they are proportional.........Answer

4 0

3 years ago