All categories

3 years ago

Use the table to identify values of pand a that can be used to factor

Mathematics

2 answers:

Mashutka [201]3 years ago

8 0

Answer:

D. -3 and 4

Step-by-step explanation:

-12 = -3 x 4

-3 + 4 = 1

x^2 + x - 12

= (x - 3)(x + 4)

Answer

D. -3 and 4

BartSMP [9]3 years ago

6 0

ANSWER

D. -3 and 4

EXPLANATION

The given quadratic trinomial is

${x}^{2} + x - 12$

To factor this we need to find two factors of -12 that sum up to 1, the coefficient of x.

We can see from the table that, when p=-3 and q=4, then p+q =1.

The trinomial can now be factored as:

${x}^{2} + x - 12 = (x - 3)(x + 4)$

The correct answer is D.

You might be interested in

Seven tickets for a Broadway show cost $385. How much will only 4 tickets cost?

irina1246 [14]

Answer:

That seems a little hard-

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Suppose the population standard deviation is σ = 5 , an SRS of n = 100 is obtained, and the confidence level is chosen to be 98%

beks73 [17]

Answer:

1.165.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.98}{2} = 0.01$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.01 = 0.99$ , so $z = 2.33$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this problem, we have that:

$\sigma = 5, n = 100$ . So

$M = z*\frac{\sigma}{\sqrt{n}}$

$M = 2.33*\frac{5}{\sqrt{100}} = 1.165$

So the correct answer is:

1.165.

6 0

3 years ago

What is the value of x? (giving brainliest and thanks to all!)

astra-53 [7]

Answer:

x° = 64°

Explaination:

This is a right angled triangle so one of the angle is 90°.

So, x° + 90° = 154° (Exterior angle property)

x° = 154° - 90° = 64°

Therefore x° = 64°

4 0

3 years ago

The budget for a remake of a movie is 100 times the budget of the original movie. The original movie's budget was 10^5 dollars.

Arte-miy333 [17]

Answer:

100,000,000

Step-by-step explanation:

10*10=100*10=1000*10=10000*10=100000*10=1000000*100=100,000,000

4 0

3 years ago

The next event requires each runner to jump 8 hurdles that are spaced 12.3 meters apart. If there are 15 meters from the startin

inessss [21]

The race is 111.6 m long.

8 hurdles spaced 12.3 m apart means 7 spaces that are 12.3 m in length; 7*12.3 = 86.1

Add to this the distance to the first hurdle and the distance from the last hurdle:
86.1+15+10.5 = 111.6 m

3 0

3 years ago