All categories

2 years ago

Simplify x^2-4x-32/x^2+7x+12

Mathematics

2 answers:

Nimfa-mama [501]2 years ago

8 0

<span>Simplify x^2-4x-32/x^2+7x+12
Answer see form:</span>

Katarina [22]2 years ago

7 0

It equals to:

(x - 8)(x + 4) / (x+3)(x+4)

If x ≠ -4

Then it equals to:

(x-8) / (x+3)

You might be interested in

vehicle is moving with 20 m/s towards the east and another is moving with 15 m/s towards the west. If both vehicle being to more

den301095 [7]

4,200 meters
Or 4.2 km
Hope this helps good luck tho :)

5 0

2 years ago

Read 2 more answers

GIVE THE BRAINLIEST PLWS ANSWER. Write and evaluate the expression. Then, complete the statements. ten more than the product of

NemiM [27]

Answer:

17.

Step-by-step explanation:

Statement: "ten more than the product of two and a number"

Translation: 10 + (2 * x)

x = 3.5

10 + (2 * 3.5)

= 10 + 7

= 17.

Hope this helps!

5 0

2 years ago

The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e

Viefleur [7K]

Answer:

The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.2087, 0.2507).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

Suppose a sample of 1537 tenth graders is drawn. Of the students sampled, 1184 read above the eighth grade level. So 1537 - 1184 = 353 read at or below this level. Then

$n = 1537, \pi = \frac{353}{1537} = 0.2297$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2297 - 1.96\sqrt{\frac{0.2297*0.7703}{1537}} = 0.2087$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2297 + 1.96\sqrt{\frac{0.2297*0.7703}{1537}} = 0.2507$

The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.2087, 0.2507).

7 0

2 years ago

Suppose an airplane climbs 15 feet up for every 40 feet it moves forward. What is the slope of this airplanes ascent?

Anastasy [175]

the rise over run is 15/40 so the slope of the airplanes ascent is 0.375 feet per foot is move forward

5 0

3 years ago

A fruit basket contains seven apples, four bananas, and eight pears. If a piece of fruit is picked at random from the basket, wh

vekshin1

Answer:

1) 0.21

Step-by-step explanation:

This is because there are 4 bananas out of all 19 fruits. 4/19 is equal to 0.21052631578.

5 0

3 years ago