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2 years ago

The roots of the function f(x) = x2 – 2x – 3 are shown. What is the missing number?

Mathematics

2 answers:

Arada [10]2 years ago

8 0

Answer:

The answer is 3

yulyashka [42]2 years ago

7 0

If you would like to find the roots of the function f(x) = x^2 - 2 * x - 3, you can calculate this using the following steps:

<span>f(x) = x^2 - 2 * x - 3 = (x - 3) * (x + 1)
</span>1. x = - 1
2. x = 3

The missing number would be 3.

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lutik1710 [3]

Answer:2.00

Step-by-step explanation:

approximate apr=(finance charge divided by#months)12 / amount financed

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2 years ago

A rocket is divided into three sections. The top section is one-eighth the length of the bottom section. The middle section is o

Ahat [919]

Answer:

312 ft

Step-by-step explanation:

The steps are as follows :

1. The problem can be described as an equation

$x + \frac{1}{2}x + \frac{1}{8}x = 312$

2. Convert all values on the left side into their equivalent fractional values

$\frac{8}{8}x + \frac{4}{8}x + \frac{1}{8} x = 312$

3. Combine like terms

$\frac{13}{8} x = 312$

4. Multiply both sides by the reciprocal of 13/8 to isolate variable X

$concept \: \: \: ({ \frac{8}{13} \times \frac{13}{8} }) = 1$

$\frac{8}{13} \times \frac{13}{8}x = 312 \: \times \frac{8}{13}$

5. Simplify

$x = 192$

6. Check answer by using it in the original equation

$(192) + \frac{1}{2}(192) + \frac{1}{8} (192) = 312$

4 0

2 years ago

Conor has a roll of fence that is 25 feet long. He needs 8 yards of fence to go around a flower bed. Does he have enough fence t

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Answer:

Yes he has enough fence to go round the flower bed.

Step-by-step explanation:

1 yard = 3 feet

25 feet = 25/3 = 8.33 yards

Yes he has enough fence to go round the flower bed.

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2 years ago

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The answer is $62.00

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2 years ago

A doctor recommends a two-step process to treat a rare form of pancreatic cancer. The first method is successful 80% of the time

Rudiy27

Answer:

The answer is 15%.

Step-by-step explanation:

The probability that:

Both treatments are successful:

80% x 90% = 72%

The first method is a success, but the second one is not:

80% x (1 - 90%) = 8%

The first method is not successful, but the second one is:

(1 - 80%) x 25% = 5%

Both treatments are unsuccessful:

1 - (72% + 8% + 5%) = 15%

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2 years ago