3 years ago

7. Which of the following has a certain

Mathematics

1 answer:

Sliva [168]3 years ago

6 0

Answer:

Step-by-step explanation:

February has 28 days and on leap years 29. so there is an 11/12 chance that a month will have 29 days. a coin is 50/50. rain is 7/10. and a is irrational.

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Write 1 1/4 as a decimal and percent

Annette [7]

<span>decimal 1.25 percent 125% fraction 5/4</span>

6 0

4 years ago

Does anyone know how to do this? I’m lost

Nataly [62]

Answer: B

Step-by-step explanation:

To find the inverse function, you switch x with y and y with x. Then, you solve for y.

$y=(x-1)^{2} -4$ [switch x with y, and y with x]

$x=(y-1)^2-4$ [add both sides by 4]

$x+4=(y-1)^2$ [square root both sides]

$\sqrt{x+4} =y-1$ [add both sides by 1]

$\sqrt{x+4} +1=y$

$f^-^1(x)=1+\sqrt{x+4}$

Now that we know the inverse function, we can actually tell that the answer is B. We know this because of the restriction that f(x) is x≤1. This makes it positive, and B the answer.

7 0

3 years ago

Help me need the answer!!!!!

VARVARA [1.3K]

Answer:

Hope that helps

Step-by-step explanation:

b) two pairs that are solutions

x>=-4

x>=-4x<=1

-4<=x<=1

two pairs that are not solutions

-18<x<-13

4 0

3 years ago

For which value would the graph y= x^4 -25 be below the x axis?

creativ13 [48]

1 because 1^4-25=-24 which is negative(so below the x-axis)

5 0

3 years ago

What is the value of x and y when x = 9/4 and y = 3/5

zvonat [6]

Answer:

9/4 = 2.25 and 3/5=.6

Step-by-step explanation:

9/4 also equals 2 1/4'

6 0

3 years ago