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3 years ago

Can someone help me please ???

Mathematics

1 answer:

Phantasy [73]3 years ago

4 0

Answer:

-7,0,5,8

Step-by-step explanation:

Just try to visualize it. If a function is reflected across the x-axis, that means that positive values are flipped and become negative and negative values become positive.

So, g(x)=-f(x).

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Cassie’s broker charges her a commission of $4.25 for every ten shares of stock bought or sold. cassie buys 92 shares of hyren a

Kisachek [45]

Cassie's total spent is equal to money spent on shares bought and commission charges of broker.

Money spent on shares bought:

92 shares of Hyren Airlines at $13.70 per share = $92*13.7=1260.4$
130 shares of Giaco Household Goods at $3.28 per share = $130*3.28=426.4$
126 shares of Iwad Records at $8.06 per share = $126*8.06=1015.56$

The sum total is $1260.4+426.4+1015.56=2702.36$ dollars

Commission charges of broker:

If broker charges $4.25 every 10 shares, he charges $\frac{4.25}{10}=0.425$ dollars per share.

Total number of shares bought by Cassie is $92+130+126=348$ shares.

Total spent on commissions, thus, is $348*0.425=147.9$ dollars.

Cassie's total money spent is $2702.36+147.9=2850.26$ dollars.

Rounded to nearest dollar, it is $2850.

ANSWER: $2850

4 0

4 years ago

Read 2 more answers

a rectangle is 8cm longer then it is wide, and it’s area is 153cm^2. Find the dimensions of the rectangle.

Stolb23 [73]

Answer:

Width of 9cm and length of 17cm.

Step-by-step explanation:

To calculate an area of a rectangle, use the formula A=l*w. We know the length is 8cm longer than the width. So l = 8 + w. So the area is A= (8+w)*w.

We also know the area is 153. Substitute this value for A and solve.

$153 = (8+w)(w)\\153 = 8w+w^2\\w^2+8w-153 = 0$

To solve the quadratic, use the quadratic formula:

$\frac{-b+/-\sqrt{b^2-4ac} }{2a}$

Here a=1, b=8 and c=-153.

$w=\frac{-b+/-\sqrt{b^2-4ac} }{2a} \\w=\frac{-8+/-\sqrt{8^2-4(1)(-153)} }{2(1)} \\w=\frac{-8+/-\sqrt{64+612} }{2} \\w=\frac{-8+/-\sqrt{676} }{2} \\w=\frac{-8+/-26 }{2} \\w=\frac{-8+26 }{2}=\frac{18}{2}=9 \\and\\w=\frac{-8-26 }{2} =\frac{-34}{2}=-17$

Since w=9 or w=-17, substitute this value for w in l= 8+w to find l.

l = 8+9 = 17

l=8+-17 = -9

Since length cannot be positive, it must be l=17 and w=9.

8 0

3 years ago

Your answer should be a polynomial in standard form (x+1)(x−6)

Ulleksa [173]

It’s like complicated distributive property.

See attachment below.

Hope this helped!

4 0

3 years ago

A manufacturer needs to pay $300 to start making a certain new product. Besides the initial costs of $300, this product will als

maw [93]

Answer:

$\displaystyle \frac{300+18x}{x}\le 24$

Step-by-step explanation:

Average Cost

Making a certain new product costs $300 plus $18 per product.

The total cost for x products is given by:

300 + 18x

To get the average cost, we divide the total cost by the number of products manufactured:

$\displaystyle A=\frac{300+18x}{x}$

If the manufacturer wants to keep the average cost at $24 or less:

$\mathbf{\displaystyle \frac{300+18x}{x}\le 24}$

This is the required inequality

6 0

3 years ago

There are 21 students in your class. The teacher wants to send 4 students to the

aliya0001 [1]

Answer:

4/21

Step-by-step explanation:

since we are only talking about the first day, there are still 21 options for your teachers. there are 4 spots that you can fill, so the probability that you will be picked is 4/21

8 0

3 years ago