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2 years ago

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Can anyone help with this please? Janell randomly surveyed 50 students. She found out that 42 of the students had been to a musi

c concert. There are 2,870 students at the school. Based on her survey, about how many students in school have been to a music concert?

1 answer:

sweet [91]2 years ago

8 0

Answer:

2411

Step-by-step explanation:

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Solve:<br><br> a.x3+x2-8x - 12x+2<br> b. x3-4x2-3x + 18x-3<br> c. x2 + 4x + 4<br> d. x2 - 6x + 9

NeTakaya

<h2>Steps:</h2>

So firstly, this function is asking us to divide f(x) by g(x) so let's set that up as such:

$(\frac{f}{g})(x)=\frac{x^2-x-6}{1}\div \frac{x-3}{x+2}$

Next, remember that <u>dividing by a number is the same as multiplying by its reciprocal.</u> To find the reciprocal of a number, flip the numerator and denominator around. With this info, flip the second fraction to it's reciprocal and change the sign to multiplication:

$(\frac{f}{g})(x)=\frac{x^2-x-6}{1}\times \frac{x+2}{x-3}$

Next, we are going to factor x² - x - 6. Firstly, what two terms have a product of -6x² and a sum of -x? That would be -3x and 2x. Replace -x with 2x - 3x:

$(\frac{f}{g})(x)=\frac{x^2+2x-3x-6}{1}\times \frac{x+2}{x-3}$

Next, factor x² + 2x and -3x - 6 separately. Make sure that they have the same quantity on the inside of the parentheses:

$(\frac{f}{g})(x)=\frac{x(x+2)-3(x+2)}{1}\times \frac{x+2}{x-3}$

Now you can rewrite it as:

$(\frac{f}{g})(x)=\frac{(x-3)(x+2)}{1}\times \frac{x+2}{x-3}$

Next, multiply:

$(\frac{f}{g})(x)=\frac{(x-3)(x+2)^2}{x-3}$

Next, divide:

$(\frac{f}{g})(x)=(x+2)^2$

And lastly, simplify:

A good tip: $(x+y)^2=x^2+2xy+y^2$

$(\frac{f}{g})(x)=x^2+4x+4$

<h2>Answer:</h2>

<u>The correct option is C. x² + 4x + 4.</u>

7 0

3 years ago

there are 110 apples in a basket on monday. on wednesday there is 80 apples left in the basket. what percent of apples are remai

vivado [14]

Answer:

the numbers of apples consumed is : 110 - 80 = 30.

percentage of apple consumed is : (30 / 100) * 100=27.27%

remaining numbers of apple =100 - 27.27 = 72.72%...

6 0

3 years ago

Please help <br> I will mark brainlist

Naya [18.7K]

Answer:

B x = sqrt(48)

Step-by-step explanation:

Half of the bottom side measures 4.

4^2 + x^2 = 8^2

16 + x^2 = 64

x^2 = 48

x = sqrt(48)

Answer: B x = sqrt(48)

4 0

2 years ago

Hurry please btw this not my laptop

icang [17]

Answer:

16x X 44 squared

Step-by-step explanation:

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2 years ago

Each piece of candy weighs one eight pound. If Donna buys 15 pieces of candy how many pounds of candy will she buy.

likoan [24]

Answer:

120

Step-by-step explanation:

15/(1/8)

4 0

3 years ago

Read 2 more answers