What is the value of c such that: x2 + 14x + c, is a perfect-square trinomial? A. 7 B. 98 C. 196 D. 49

2 answers:

8 0

Your answer is d.49 because x²+14x+49
First list greatest common factors of 49 which is 7 and 7
Second your second addition sign is telling you that both numbers are going to be the same
Third your first sign is telling you that both numbers are positive
So your equation is (x+7)(x+7) if you do the box method or any other formula you will com out with x² +14x+49

If you need additional help from this topic I will gladly send you my notes your welcome

BlackZzzverrR [31]3 years ago

6 0

I think b is your answere.

You might be interested in

A pencil and ruler cost 1.50 together. The ruler is 1.00 more. How much is pencil

Stella [2.4K]

Ok so the solution which greenrune will (hopefully) correct

total is 1.5
p+r=1.5
rule is 1 more than pencil
r=1+p
sub 1+p for r
p+1+p=1.5
2p+1=1.5
minus 1 from both sides
2p=0.5
divide both sides by 2
p=0.25

pencil=$0.25

3 0

3 years ago

Read 2 more answers

What is a necessary step for constructing perpendicular lines through a point off the line?

mixas84 [53]

Draw arcs on either side of a given point on the line

To construct a line perpendicular to another line through a point on the line:

Measure a length from that point to one edge of the line

Draw two intersecting arcs on either sides of the line

Draw a straight line from the intersecting point of the arcs to the point on the existing line.

The new line drawn is a perpendicular line.

The only step necessary out of the given choices is "Draw arcs on either side of a given point on the line"