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Ksivusya [100]
3 years ago
15

Please help! will mark brainliest

Mathematics
1 answer:
viva [34]3 years ago
3 0

Answer:

i think its a or d

Step-by-step explanation:

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Question is in picture.
Norma-Jean [14]

Answer:

<h2>B. 2x + y = 4</h2>

Step-by-step explanation:

Having the system of equations in its simplest form

\left\{\begin{array}{ccc}ax+by=c\\dx+ey=f\end{array}\right

If

a=d,\ b=e,\ c=f

then the system of equations has infinitely many solutions.

If

a=d,\ b=e,\ c\neq f

then the system of equations has no solution.

If

a\neq d\ or\ b\neq e

then the system of equations has one solution.

We have the equation

y=-2x+4

Convert to the standard form Ax + By = C<em>:</em>

<em />y=-2x+4<em>              add 2x to both sides</em>

y+2x=-2x+2x+4\\\\2x+y=4

3 0
3 years ago
Renee tossed 12 heads when tossing a coin 18 times.
Nadya [2.5K]
So,

Simply divide 12 by 18.
\frac{12}{18} --\ \textgreater \   \frac{2}{3}

The experimental probability of tossing heads was 2 out of 3.
5 0
3 years ago
What is the answer to this question
-Dominant- [34]

Answer:

48*

Step-by-step explanation:

all triangle angles equal 180

180-132 = 48

- Gage Millar, Algebra 2 tutor

7 0
3 years ago
Read 2 more answers
Is the ratios 2.5,3.5 and 5.7 porportional
11111nata11111 [884]
No because 2/3 to 3/5 and 3/5 to 5/7 arent proportional.
7 0
3 years ago
What shows how many molecules there are of a chemical formula? ​
olga nikolaevna [1]

Answer:

no of moles = mass / molar mass

1 mole = 6.02 *10^23 molecules

I don't know if that helped

5 0
3 years ago
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