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Amanda [17]
3 years ago
15

Simplify and evaluate. 4−2

Mathematics
1 answer:
Nikitich [7]3 years ago
3 0
4-2 = 2-1
You can do the evaluating part.
You might be interested in
What is the slope of the line passing through the point 2 comma negative 1 and the origin?
NARA [144]

Answer:

- 1/2 or - 1.5

Step-by-step explanation:

I would suggest using a table

x       y

2      -1

0      0

from -1 to 0, you add 1

from 2 to 0, u subtract 2

so y/x

1/-2

Your slope will be -1/2 or -1.5

Hope this helped!

3 0
3 years ago
Can anyone help out?
vampirchik [111]
Exponential decay is the answer
5 0
3 years ago
in a bag of 20 marbles, 4 are blue. what is the probability that one taken at random will not be blue?
Ber [7]
Your answer is 4/5, which is 80% or 0.8

If there are 20 marbles in total in the bag, and 4 blue ones, that means that the probability of taking a blue one is 4/20.

This means that the probability of not taking a blue one is 1 - 4/20, or 20/20 - 4/20, which equals 16/20 = 4/5

I hope this helps! Let me know if you have any questions :)
6 0
3 years ago
Read 2 more answers
See the attachments below!!!
zavuch27 [327]

Answer:

1) x=0.465

2) option A.

Step-by-step explanation:

1) The given equation is:

{3}^{x + 2}  = 15We rewrite this as logarithm to get:

x + 2 =  log_{3}(15)

The change of base formula is:

log_{b}(y)  =  \frac{ log(y) }{ log(b) }

We apply the change of base formula on the RHS to get:

x + 2 =  \frac{ log(15) }{ log(3) }

x + 2 =  \frac{1.176}{0.477}

x + 2 = 2.465

Group similar terms:

x = 2.465 - 2.000 = 0.465

2)

From the graph, the logarithmic function approaches negative infinity as x approaches -6.

Therefore the vertical asymptote is x=-6

The graph touches the x-axis at x=-5, therefore the x-intercept is x=-5.

The correct answer is A.

6 0
4 years ago
3x+2y=45 what is the solution to this system of equation
Scrat [10]

Answer:

x=15  y=22.5

Step-by-step explanation:

you divide 45 by 3 and then you divide 45 by 2

3 0
3 years ago
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