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nlexa [21]
3 years ago
13

Simplify: 1. 4x−(1−2x)+(2x−7) 2. (3−0.4a)−(10−0.8a)

Mathematics
1 answer:
dem82 [27]3 years ago
7 0

Answer:1.8(x -1)

2.0.4a -7

Step-by-step explanation:

You might be interested in
Based on the work shown on the right, check all of the possible solutions of the equation.
Mazyrski [523]

Incomplete question. However, here is a similar question attached.

Solve 3x^2 + 17x - 6 = 0.

Based on the work shown to the left, which of these values are possible solutions of the equation? Check all of the boxes that apply

A X=-6

B X=6

C X=-1/3

D X=1/3

E X=0

Answer:

A and D

Step-by-step explanation:

Note that such question requires using completing the square method of solving equations. By using the values X= -6 and X= 1/3 we arrive at a solution.

7 0
3 years ago
Can someone help me please and thank you
s344n2d4d5 [400]
Okay.
Well, first of all you need to know what an x-intercept is. 
It's the point of when the line crosses over the x-axis. For this, situation it crosses twice. An x-intercept written out is normally written out as (#, 0)
Out of that table you have two that apply to (#, 0)
(-6, 0) and (11,0)
the question is asking for a positive x-intercept. I'm guessing you know the difference. between negative and positive. but just in case, I'll use the number 5. As a positive: 5 As a negative: -5
So, you have -6 and 11.
the 6 is negative(-) the 11 is positive(+).
So your answer would be (11,0)

I hope this helped! :)
4 0
3 years ago
Help with geometry? Can't do it no matter what I try
Anarel [89]
R u in k12? or nah if yes send a mail to the teach
4 0
3 years ago
Find the value of x<br> PLEAASEEE HELP!!!
vodomira [7]

Answer:

x = 37

Step-by-step explanation:

4x + 3 + x - 8 = 180

4x + x - 8 + 3 = 180

5x - 5 = 180

5x = 185

x = 37

Hope this helps!

7 0
3 years ago
The equation of a parabola in the xy-plane is given as
Harrizon [31]

Answer:

B

Step-by-step explanation:

y=n(x+5)(x-3)

or y=n(x²-3x+5x-15)

or y=n(x²+2x-15)

=n(x²+2x+1-1-15)

=n(x+1)²-16n

y -coordinate of vertex=-16n

6 0
3 years ago
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