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2 years ago

If α and β are the zeroes of the polynomial 2x2 + 3x – 7, then find a polynomial whose zeroes are and .

Mathematics

1 answer:

Drupady [299]2 years ago

5 0

Answer:

$\frac{-\sqrt{65} - 3 }{4}, \frac{\sqrt{65} + 3}{4}$

Step-by-step explanation:

Since we cannot factor the expression, we must use quadratic formula: $x = \frac{-b +/-\sqrt{b^2 - 4ac} }{2a}$

Plug in a for 2, b for 3, and c for -7 and you should find your roots.

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Find the prime factors. 7) 48

FinnZ [79.3K]

Step-by-step explanation:

$48 = 48 \times 1 \\ 48 = (24 \times 2) \times 1 \\ 48 = (12 \times 2) \times 2 \times 1 \\ 48 = (6 \times 2) \times 2 \times 2 \times 1 \\ 48 = (3 \times 2) \times 2 \times 2 \times 2 \times 1$

7 0

2 years ago

What is the answer to this equation t+t+t=12

OLEGan [10]

Answer:

t = 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define equation

t + t + t = 12

Step 2: Solve for t

Combine like terms (t): 3t = 12
Divide 3 on both sides: t = 4

Step 3: Check

Plug in t into the original equation to verify it's a solution.

Substitute in t: 4 + 4 + 4 = 12
Add: 8 + 4 = 12
Add: 12 = 12

Here we see that 12 does indeed equal 12.

∴ t = 4 is a solution of the equation.

3 0

3 years ago

Which expression is equivalent to the following complex fraction?

Alex17521 [72]

Answer:

$\frac{x - 1}{2x}$

Step-by-step explanation:

This is a correct answer.

5 0

2 years ago

Probability help!

bagirrra123 [75]

Answer:

90%

Step-by-step explanation:

Since Brandon has a 25% chance of hitting a target, and there is 8 targets, you can take 25% of 8. This will get you an answer of 2. So, in this way Brandon has a 90% chance of hitting at least one target.

7 0

2 years ago

Write each in its standard form: 2.726×10⁸

denis-greek [22]

272,600,000 to standard form is 2.726(10^8)

5 0

2 years ago