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DerKrebs [107]
4 years ago
6

How would you convince a fellow student that the number 0.57 is a rational number?

Mathematics
1 answer:
Setler79 [48]4 years ago
8 0
Because a rational number is basically a fraction or decimal form 
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Which graph best represents the function f(x)=2x ?
yan [13]

Answer:

B

Step-by-step explanation:

The best - well, only way- is to check a few points.

Namely -1 (unless your eyesight is really poor!), 0, 1, 2, and 3.

f(x) = 2^x\\f(-1) = 2^-^1 = \frac12\\f(0) =2^0 =1\\f(1)= 2^1=2\\f(2)=2^2=4\\f(3)=2^3= 8

Now you can mark all these points in each graph (well, you could if they were on paper and not on a screen) and see which one of the lines passes through all of them. Spoiler alert, it's the B graph.

A represents 2(2^x) = 2^{x+1}, B is the one you want, C is \frac{2^x}2 = 2^{x-1} and D looks like 4^x = 2^2^x

3 0
2 years ago
Solving multi step equations <br> 2y + 8 + 4y = 44
rjkz [21]

Answer:

y=6

Step-by-step explanation:

6y+8=44

44-8=6y

6y=36

6y/6 =36/6

y=6

3 0
3 years ago
Read 2 more answers
Four times a number increased by five is the same as triple the difference of a number and two. What is the number?
Dominik [7]

Answer:

Step-by-step explanation:

Let the number be x,

4x+5 = 3(x-2)

4x+5 = 3x-6

Collect like terms

4x-3x = -5-6

x. = -11

PLEASE GIVE BRAINLIEST.

8 0
3 years ago
Name the value of each 2 in 222,222
marshall27 [118]

200,000

20,000

2,000

200

20

2

Hope I helped!!

4 0
3 years ago
Read 2 more answers
Answer must be in fraction form
Damm [24]

Answer:

-7/18

Step-by-step explanation:

To multiply fractions, you just multiply the top number by the top number and the bottom number by the bottom number. Also, you have to watch the sign.

In this case, we have a positive fraction multiplied by a negative fraction, meaning that our answer must be negative.

So we have- 2x7 / 4x9.

This is simplified to be- 14/36, or 7/18.

However, the answer is actually -7/18, since the number must be negative.

Let me know if this helps.

8 0
3 years ago
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