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netineya [11]
3 years ago
5

Im on a time limit! could someone help me with this?

Mathematics
2 answers:
katovenus [111]3 years ago
7 0

Answer:

B is the answer because the other equations have real numbers

Step-by-step explanation:

ipn [44]3 years ago
4 0

Answer:

B is the correct answer

Step-by-step explanation:

You might be interested in
Help please I’m not good at rational functions.
GuDViN [60]

Answer:

See below.

Step-by-step explanation:

\frac{6z^2-12z}{4z^2-16z+16} +\frac{3z}{z^2-z-2} \\\\

First, factor the numerators and the denominators:

=\frac{6z(z-2)}{4(z^2-4x+4)}+\frac{3z}{z^2-z-2}\\=\frac{6z(z-2)}{4(z-2)^2}+\frac{3z}{(z-2)(z+1)}\\=\frac{3z}{2(z-2)}+\frac{3z}{(z-2)(z+1)}

Now, make the two denominators equivalent. To do this, we can multiply the first term by (z+1) and multiply the second term by 2. This will give us:

(\frac{z+1}{z+1} )(\frac{3z}{2(z-2)})+(\frac{2}{2})(\frac{3z}{(z-2)(z+1)})\\=\frac{3z(z+1)}{2(z-2)(z+1)}+\frac{6z}{2(z-2)(z+1)}  \\

Now, combine them since they have a common denominator:

=\frac{3z^2+3z+6z}{2(z-2)(z+1)}\\ =\frac{3z^2+9z}{2(z-2)(z+1)} \\=\frac{3z(z+3)}{2(z-2)(z+1)}

This cannot be simplified further.

7 0
3 years ago
4x = 3/7 I really need help
kakasveta [241]
To solve this problem, we need to simplify.

4x = 3/7
x = 3/7 ÷ 4
x = 12/7
x = 1 5/

Hope this helps!
7 0
3 years ago
Help needed! Trying to get answer
Angelina_Jolie [31]
1/27 and (3^15)*(3^-18)
4 0
3 years ago
1.) In \large 10^5 the "10" is the exponent/power and the "5" is the base. Is this true or false?
Over [174]

Answer:

False.

Step-by-step explanation:

10 is the base and 5 is the exponent

10^{5}

4 0
3 years ago
A group of people were asked if they had run a red light in the last year. 290 responded "yes", and 177 responded "no". Find the
GuDViN [60]

Answer:

0.621

Step-by-step explanation:

Number of people that have run a red light in the last year = 290

Number of people that have not run a red light in the last year = 177

Total number of respondents = 290 + 177

                                                 = 467

Pr(if a person is chosen at random, they have run a red light in the last year) = \frac{number of people who has run the red light last year}{total number of respondents}

                   = \frac{290}{467}

                   = 0.621

The probability that if a person is chosen at random, they have run a red light in the last year is 0.621.

6 0
3 years ago
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