3 years ago

A. solve x-9=x-9

Mathematics

1 answer:

Greeley [361]3 years ago

7 0

Answer will be B the solution is all real numbers

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I need help with this please

Andrei [34K]

Answer:

x=12 and y=1

to find the x value, you multiply the y value by 2.

6×2=12

to find y, you divide x by 2.

2/2=1

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3 years ago

⭐️⭐️ILL MAKE YOU BRAINLIEST⭐️⭐️ Simplify 4 — 1 — 5

Sonja [21]

Answer:

idk 3 maybeeed im in 3rd grade idk

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4 years ago

Solve the quadratic equation by completing the square x^2-2ax+b=0

luda_lava [24]

Let a, ß be the roots of x² + 2ax + b =0.......[1]

⇒a + ß = -2a and aß = b

By hypothesis

la-ß | ≤ 2m

⇒ (a-ß)² ≤ 4m²

⇒ (a+ß)²-4aß < 4m²

⇒ 4a²-4b ≤ 4m²

⇒a² - b ≤ m²......(2)

And discriminant of (1) is >0

⇒4a²-4b> 0

⇒ b <a²...... (3)

From (2) and (3)

a² > b≥ (a² - m²)

b = [a² - m², a²)

8 0

3 years ago

Rounding to the nearest hundred thousand 44,019

docker41 [41]

Answer:

44,000

Step-by-step explanation:

The number 19 is closer to 0 than 100 so you round down

Sorry you didnt get an answer right away, but I hope this helps! :)

3 0

3 years ago

The mean salary for a new teacher in your town is $48,000. You believe it is higher for new teachers in a neighboring town. Stat

nikklg [1K]

Answer:

Step-by-step explanation:

Given that the mean salary for a new teacher in your town is $48,000

You believe it is higher for new teachers in a neighboring town.

So to prove or disprove your claim you have to show statistical evidence.

For that hypothesis testing is necessary.

You must conduct a hypothesis test for comparing the mean of salary of new teacher with neighbouring places

The hypotheses wouldbe

$H_0: \mu = 48000\\H_1: \mu >48000$

where mu is the average for neighbouring states.

3 0

3 years ago