2 years ago

Conic Sections - Part 1

Mathematics

1 answer:

asambeis [7]2 years ago

7 0

Answer:

Step-by-step explanation:

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Need help with this plz

gogolik [260]

Answer:

$x = \frac{ - 24 \pm \sqrt{ - 288} }{4} \\ = \frac{ - 24 \pm \sqrt{ ( - 1) {(12)}^{2} (2)} }{4} \\ = \frac{ - 24 \pm \sqrt{ - 1} \sqrt{ {12}^{2} } \sqrt{2} }{4} \\ = \frac{ - 24 \pm i 12\sqrt{2} }{4} \\ =-\frac{24}{4}\pm \frac{i12\sqrt{2}}{4}\\= - 6 \pm \: i3 \sqrt{2}$

3 0

2 years ago

A square is cut from a rectangle. The side length of the square is half of the unknown width w. The area of the shaded region is

Virty [35]

Answer:

See below

Step-by-step explanation:

The side of the square is w/2, then its area is:

A = (w/2)² = w²/4

The shaded area is the difference of areas of the rectangle and the square:

14w - w²/4 = 84

This can be simplified:

56w - w² = 336
w² - 56w + 336 = 0

8 0

2 years ago

Find the number that makes the ratio equivalent 1:3 9:_

dimaraw [331]

Answer:

Step-by-step explanation:

If the ratio is 1:3 multiply that by 9:9 so you effectively get 9:9x3 = 9:27. Or, you can say to yourself if B (3) is 3 times greater than A (1) then B is 3 times greater than 9. So 9x3 = 27

3 0

3 years ago

The function w(x)=250x represents the number of words w (x) you can read in 8 minutes. How many words can you read in 8 minutes?

Vesnalui [34]

To find the answer, we plug 8 into the equation in the place of x, since x represents the number of minutes.

w(8) = 250(8)
2(8) = 2000

You can read 2000 words in 8 minutes.

5 0

3 years ago

The sum of 5 and a number x

Naya [18.7K]

5+x that is the answer

3 0

3 years ago

Read 2 more answers