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frozen [14]
3 years ago
7

What is the value of b^2 - 4ac for the following equation? 2x 2 - 2x - 1 = 0

Mathematics
1 answer:
ololo11 [35]3 years ago
7 0
The answer to this is x=3/2
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You want to solve 11% of what number is 22. Explain how you can solve that by using a proportion
Doss [256]
Write the first ratio as 11/100 and set it equal to 22/n.

since 11 x 2=22 you can multiply 100 x 2 and you'll get 200. 

*Check*: 11% of 200=22
3 0
3 years ago
Need help with math problem give 5 stars and brain thingy point
Lyrx [107]

Answer:

d) 3/8

Step-by-step explanation:

0, 1/8, 2/8, 3/8, 4/8, 5/8, 6/8, 7/8, 1

Hope this helps!

3 0
2 years ago
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Please help!!! (With one or all the problems, anything is greatly appreciated if you understand probability)
professor190 [17]
Here are the answers to problem 1..

a) 11

b) 5/36

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d) 25 Times because 10, 11, and 12 have a probability sum of 16.667% ironically...

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6 0
3 years ago
Which of the following pairs of functions are inverses of each other?
AnnyKZ [126]

Answer:

Step-by-step explanation:

Rearrange each function to solve for x.

Switch x and y,

The resulting equation is the inverse function.

A:

f(x) = y = 5+x

x = y-5

y = x-5

f⁻¹(x) = x-5

g(x) = 5-x ≠ f⁻¹(x)

g(x) is not the inverse of f(x).

:::::

B:

f(x) = y = 2x-9

x = (y+9)/2

y = (x+9)/2

f⁻¹(x) = (x+9)/2

g(x) = (x+9)/2 = f⁻¹(x)

g(x) is the inverse of f(x).

:::::

C:

f(x) = y = 2/x - 6

x = 2/(y+6)

y = 2/(x+6)

f⁻¹(x) = 2/(x+6)

g(x) = (x+6)/2 ≠ f⁻¹(x)

:::::

D:

f(x) = y = x/3 + 4

x = 3y - 12

y = 3x - 12

f⁻¹(x) = 3x - 12

g(x) = 3x - 4 ≠ f⁻¹(x)

g(x) is not the inverse of f(x).

4 0
2 years ago
GUYS I REALLY NEED HELP I DON'T UNDERSTAND :"(
ANTONII [103]

Answer:

the answer is 7

Step-by-step explanation:

plot the points then count how many spaces there are going diagnal

4 0
3 years ago
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