All categories

3 years ago

HELP!!! URGENT!!! 30 POINTS!!! Find the quotient. Write your answer in simplest form.

Mathematics

2 answers:

morpeh [17]3 years ago

5 0

(2x-7)

---------------------------- hope it helps. the anser is C .

(2x+1)

Sedaia [141]3 years ago

3 0

4x^2 -49 4x^2 -1

---------------- ÷ ---------------------------

14x^2 + 53x+14 14x^2 -3x -2

copy dot flip

4x^2 -49 1 4x^2 -3x-2

---------------- * ---------------------------

14x^2 + 53x+14 4x^2 -1

factor each term

(2x-7) (2x+7) (7 x + 2) (2 x - 1)

------------------- * ---------------------------

(7 x + 2) (2 x + 7) (2x-1)(2x+1)

Cancel

(2x-7) (7 x + 2)

------------------- * ---------------------------

(7 x + 2) (2x+1)

(2x-7) (7 x + 2)

----------------------------

(7 x + 2) (2x+1)

Continue to cancel

(2x-7)

----------------------------

(2x+1)

You might be interested in

Which math pattern was used in the Iraq war to find out the position of the bomb landing?

Monica [59]

Answer:

It was the The Large Cardinal Project.

Step-by-step explanation:

They used this form of math to calculate the precise place the bomb would land, which was the town where the dictator lived

3 0

3 years ago

Read 2 more answers

A telemarketer sells subscriptions for magazines and receives a commission of 20 % on his sales. How much would his commission b

erastovalidia [21]

The commission of telemarketer will be $75.

Step-by-step explanation:

Given,

Worth of subscription sales = $375

Commission rate = 20%

Amount of commission = 20% of worth of subscription sales

Amount of commission = $\frac{20}{100}*375$

Amount of commission = $0.2*375$

Amount of commission = $75

The commission of telemarketer will be $75.

Keywords: percentage, multiplication

Learn more about percentages at:

#LearnwithBrainly

4 0

4 years ago

Look at the triangle show on the right. The Pythagorean Theorem states that the sum of the squares of the legs of a right triang

Vladimir [108]

Answer:

$cos^2\theta + sin^2\theta = 1$

Step-by-step explanation:

Given

$(\frac{b}{r})^2 + (\frac{a}{r})^2$

Required

Use the expression to prove a trigonometry identity

The given expression is not complete until it is written as:

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = (\frac{r}{r})^2$

Going by the Pythagoras theorem, we can assume the following.

a = Opposite
b = Adjacent
r = Hypothenuse

So, we have:

$Sin\theta = \frac{a}{r}$

$Cos\theta = \frac{b}{r}$

Having said that:

The expression can be further simplified as:

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = 1$

Substitute values for sin and cos

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = 1$ becomes

$cos^2\theta + sin^2\theta = 1$

3 0

4 years ago

Jonah’s Restaurant reports net income of $20,000 during the year 2015. It distributes a dividend of $6,000 to its shareholders.

AlekseyPX

Retention ratio = (net income - dividends) / net income

retention ratio = (20,000 - 6000) / 20000 = 14,000/20,000 = 0.7 = 70%

3 0

4 years ago

The average score of all pro golfers for a particular course has a mean of 70 and a standard deviation of 3.0 (Think of these as

bija089 [108]

Answer:

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 70

Standard Deviation, σ = 3

Sample size, n = 36

Let the average score of all pro golfers follow a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(score of the 36 golfers was between 70 and 71)

$\text{Standard error of sampling} = \displaystyle\frac{\sigma}{\sqrt{n}} = \frac{3}{\sqrt{36}} = \frac{1}{2}$

$P(70 \leq x \leq 71) = P(\displaystyle\frac{70 - 70}{\frac{3}{\sqrt{36}}} \leq z \leq \displaystyle\frac{71-70}{\frac{3}{\sqrt{36}}}) = P(0 \leq z \leq 2)\\\\= P(z \leq 2) - P(z \leq 0)\\= 0.977 - 0.500 = 0.477= 47.7\%$

$P(70 \leq x \leq 71) = 47.7\%$

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

8 0

4 years ago