Answer:
3x+4x+7
Step-by-step explanation:
First, a Trinomial consists of three terms.
so we have <u>blank</u>+<u>blank</u>+<u>blank</u>
Next we need to add the coefficients.
<u>3</u>+<u>4</u>+<u>blank</u>
Add the variables.
3x+4x+<u>blank</u>
And lastly, add the constant.
3x+4x+7
Good luck!
Answer: B
Step-by-step explanation:
Let's solve the given equation. Then we can see which other equation has the same answer.
-5n+31=-14n-5
36=-9n
n=-4
We need to fina another equation that gives n=4 as the answer.
A. Incorrect
3-6n+3n=-3+4-4n
3-3n=1-4n
n=-2
B. Correct



C. Incorrect
1=0.75n+3.25
-2.25=0.75n
n=-3
D. Incorrect
-1-22n=-20n-9
8=2n
n=4
Answer:
20+5x=
Step-by-step explanation:
1 coin is 4 ways
2 coins is 4*3 ways
3 coins is 4*3*2 ways
4 coins is 4*3*2*1 ways
so total is 4+12+24+24=64 sums
We can use the points (-4, 3) and (3, 1) to solve.
Slope formula: y2-y1/x2-x1
1-3/3-(-4)
-2/7
Therefore, the answer is C
Best of Luck!