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3 years ago

5

Georgina wants to practice the piano for a two least 45 minutes tonight. Which of the following inequalities represents the situ

ation?

1 answer:

Anika [276]3 years ago

5 0

Um i would love to help but i do t really understand

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A line passes through the points (–1, –5) and (4, 5). The point (a, 1) is also on the line.

IgorC [24]

Answer:

a = 2

Step-by-step explanation:

Let's find the equation of the line using the 2 points given.

Let's call -1 as x_1 and -5 as y_1

also, 4 as x_2 and 5 as y_2

The equation of line is :

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

<em>Let's plug the points and get the equation of the line:</em>

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\y+5=\frac{5+5}{4+1}(x+1)\\y+5=2(x+1)\\y+5=2x+2\\y=2x-3$

Now, to find a, we substitute a in x and 1 in y of the equation of the line we just got:

$y=2x-3\\1=2(a)-3\\1=2a-3\\2a=4\\a=\frac{4}{2}=2$

4 0

3 years ago

Read 2 more answers

___(x – 2)2 − 4 = -3x2 + 12x − 16

fiasKO [112]

The answer is x= 1/5 or 0.2

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2 years ago

Insert a rational number and an irrational number between -2/5 and 1/2

qwelly [4]

Answer:

Step-by-step explanation:

if you can pick any numbers you want then:

rational could be: 0.25 or 1/4

irrational could be: 2/7

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3 years ago

What is the answer? I am so lost- thanks for any help given.

aev [14]

Answer:

i think that the answer is 13 meters

Step-by-step explanation:

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3 years ago

Plsss helppp brainkeistt reward

Mrac [35]

Answer:

1. D

2. B

3. A

4. B

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3 years ago