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2 years ago

Which graph represents this system? 2x-5y=-5 y = ² x + 1 5

Mathematics

1 answer:

frosja888 [35]2 years ago

7 0

Answer:

$x = \frac{5(y - 1)}{2} \\ \\ x = \frac{y - 1}{2}$

Step-by-step explanation:

$2x = - 5 + 5y \\ 2x = 5y - 5 \\ x = \frac{5y - 5}{2} \\ \\ y - 1 = 2x \\ \frac{y - 1}{2} = x$

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An investigation of the effectiveness of a training program to improve customer relationships included a pre-training and post-t

notsponge [240]

Answer:

2.542

Step-by-step explanation:

Given the data :

Customer Pre-training Survey, x1 __Post-training Survey, x2 __ difference, d = (x2-x1)

A 6 8 2

B 5 5 0

C 10 10 0

D 7 10 3

E 6 8 2

F 5 6 1

G 2 8 6

This is a paired test as each subject has two different data values :

Difference in score, d :

dbar = Σd / n

dbar = (2+0+0+3+2+1+6) /

dbar = 14 / 7

dbar = 2

Standard deviation of d ; Sd = √[Σ(d - dbar)²/n-1]

Using calculator ; Sd = 2.082

Test statistic = dbar ÷ (Sd/√n)

Test statistic = 2 ÷ (2.082 / 7)

Test statistic = 2 ÷ 0.7869220

The statistic = 2.5415

7 0

3 years ago

What is the standard form equation of the line shown below?

irina1246 [14]

Bro how are we supposed to know there is no picture -_-

4 0

3 years ago

7 pints and 9 cups equals how many cups

Mars2501 [29]

23, one pint is 2 cups. So, 2 x 7 equals 14, and 14 plus 9 equals 23.

5 0

4 years ago

Eduardo bought 2liter sports drink for soccer practice during practice Eduardo drank 250 millimeters of sport drink then he dran

Jlenok [28]

Answer:

He have left 1250 milliliters of sport drink.

Step-by-step explanation:

Given:

Eduardo bought 2 litre sports drink for soccer practice during practice.

Eduardo drank 250 milliliters of sport drink then he drank another 1/2 liter.

Now, to find the milliliter of sport drink he have left.

Eduardo bought sports drink = 2 litre.

Now, to convert litre into milliliter by using conversion factor:

1 litre = 1000 milliliter.

2 liters = 2 × 1000 milliliters.

2 liters = 2000 milliliters.

Thus, Eduardo bought 2000 milliliters sport drink.

As, Eduardo drank 250 milliliters of sport drink.

So, to get the sport drink left after he drank we subtract 250 milliliters from 2000 milliliters:

$2000-250\\\\=1750\ milliliters.$

Thus, 1750 milliliters sport drink left.

Now, to get the sport drink left after he drank $\frac{1}{2} \ liter$ we subtract $\frac{1}{2} \ liter$ from 1750 milliliters:

$\frac{1}{2} \ liter =500\ milliliters.$

So,

$1750-500\\\\=1250\ milliliter.$

Therefore, he have left 1250 milliliters of sport drink.

4 0

3 years ago

What is the range of this function?

Gemiola [76]

Answer:

Not sure but I think it's B.

3 0

2 years ago