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4 years ago

5

Which are factors of x2 – 4x – 5?

1 answer:

Kitty [74]4 years ago

7 0

Answer:

(x-5)(x+1)

Step-by-step explanation:

Since the highest power of x is 2, u can assume the equation to be (x +/- A) (x +/- B), whereby A and B are unknowns.

Since the coefficient of X^2 is 1, and the number in the equation is - 5, the only possible values for A and B to get - 5 is either - 5 and 1 or 1 and - 5.

Since coefficient of x is - 4 and number in equation is - 5, imagine inserting those numbers in the equation and cross multiplying back. You would realise that the answer should be as listed above.

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aksik [14]

1 - 51
2 - 129
3 - 51
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3 years ago

Let f(x) = x2 + 15.+ 56<br>What are the zeros of the function?<br>Enter your answers in the boxes.

Anon25 [30]

The zeros if the function are -8 and -7

5 0

4 years ago

Triangle PQR has coordinates P(–8, 3), Q(–8, 6), and R(–3, 6). If the triangle is translated by using the rule (x, y) right-arro

omeli [17]

Answer:

d

Step-by-step explanation:

The rule (x, y ) → (x + 4, y - 6 )

means add 4 to the original x- coordinate and subtract 6 from the original y- coordinate, thus

P(- 8, 3 ) → P'(- 8 + 4, 3 - 6 ) → P'(- 4, - 3 )

Q(- 8, 6 ) → Q'(- 8 + 4, 6 - 6 ) → Q'(- 4, 0 )

R(- 3, 6 ) → R'(- 3 + 4, 6 - 6 ) → R'(1, 0 )

6 0

3 years ago

Major arc CBD measures 300°. Which is the radian measure of its corresponding central angle? radians radians radians radians

morpeh [17]

Answer:

$\frac{5}{3}\pi\ radians$

Step-by-step explanation:

we know that

If the measures of the major arc CBD is equal to $300$ degrees

then

the measure of its corresponding central angle is equal to $300$ degrees

so

Convert degrees to radians

Remember that

$180\°=\pi \ radians$

so by proportion

Convert $300\°$ to radians

$\frac{\pi}{180}\frac{radians}{degrees} =\frac{x}{300}\frac{radians}{degrees}\\ \\x=300\pi /180\\ \\x=\frac{5}{3}\pi\ radians$

7 0

4 years ago

Read 2 more answers

3. The following data was collected from a simple random sample from a process (an infinite population). 13 15 14 16 12 a. The p

SVETLANKA909090 [29]

Answer:

14

Step-by-step explanation:

Given the data:

13 15 14 16 12

The point estimate of the population mean will be :

ΣX/ n

X = Given data points

N = sample size

ΣX = (13 + 15 + 14 + 16 + 12) = 70

N = 5

Hence,

ΣX/ N = 70 / 5

Point estimate of population mean = 14

3 0

3 years ago