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3 years ago

Expression equal to 0.30 examples

Mathematics

2 answers:

iogann1982 [59]3 years ago

8 0

Yup good job that’s correct

stealth61 [152]3 years ago

6 0

Answer:

0.3 ? I'm not sure sorry.

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Solve equation and write reason for each step x+25=45

alexdok [17]

just do 45-25= x

x= 20

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3 years ago

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What's the temperature change?

Alex787 [66]

A. +40

B. -19

C. +130

D. +53

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3 years ago

An individual chooses a prime number that is less than 13. What is the probability that the number is odd? Write your answer as

baherus [9]

Answer:

4/5

Step-by-step explanation:

Okay, I'm pretty sure about this one! I might be wrong but:

If the number is prime and LESS than 13 (so it can't be 13 either), it's either 2, 3, 5, 7, or 11. Those are 5 numbers in all, and 4 of those are odd. So the fraction would be 4/5!

I might have done this wrong, but I hope it helps!! Have a nice day c:

3 0

3 years ago

If f(x) = [xl-5, what is f(8.6)?

Fynjy0 [20]

Answer:

3 or 4, depending on the intended meaning of [x]

Step-by-step explanation:

Perhaps you mean ...

$\displaystyle f(x)= \lfloor x\rfloor -5\\\\f(8.6)=\lfloor 8.6\rfloor-5=8-5=3$

On the other hand, perhaps you mean ...

$\displaystyle f(x)=\lceil x\rceil -5\\\\f(8.6)=\lceil 8.6\rceil-5=9-5=4$

4 0

3 years ago

In simplest radical form, what are the solutions to the quadratic equation 6 = x2 – 10x?

Marina86 [1]

we have

$6 = x^{2}- 10x$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2}- 10x+25=6+25$

$x^{2}- 10x+25=31$

Rewrite as perfect squares

$(x-5)^{2}=31$

$(x-5)=(+/-)\sqrt{31}\\ x1=5+\sqrt{31} \\ x2=5-\sqrt{31}$

therefore

the answer is

the solutions are

$x1=5+\sqrt{31} \\ x2=5-\sqrt{31}$

7 0

2 years ago

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