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WITCHER [35]
3 years ago
12

What value of c makes the polynomial below a perfect square?

Mathematics
2 answers:
schepotkina [342]3 years ago
7 0
81/4
Because I found the answer by using a Calculator I found online
malfutka [58]3 years ago
6 0

Answer:

B

Step-by-step explanation:

x² + 9x

to complete the square

add ( half the coefficient of the x- term )² to x² + 9x

= x² + 2(\frac{9}{2} )x + (\frac{9}{2} )²

= x² + 9x + \frac{81}{4} ← the value of c

= (x + \frac{9}{2} )² ← a perfect square

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The slope of the line between two points is known as the rate of change in the relation.
borishaifa [10]
Slope=rise/run or changeiny/changeinx or (y2-y1)/(x2-x1) or (y1-y2)/(x1-x2)



so

pick any 2 points
(x,y)
(0,17) and (1,23)
slope=(y2-y1)/(x2-x1)
so
(23-17)/(1-0)=6/1=6
slope is 6
8 0
3 years ago
Hurry please!!! Fast response
AlladinOne [14]

Answer:

A.

SA= \frac{2}{3} \pi rl+16 \pi r^2

Step-by-step explanation:

Surface area of the original cone

SA= \pi r l + \pi r^2... (1)

When, radius is quadrupled and slant height is reduced to one sixth

i. e. \: \:r = 4r\: \: \&\:\: l= \frac{1}{6}l

Plug the above values of r and l in equation (1), new surface area becomes:

SA= \pi (4r)\times \frac{1}{6} l+ \pi (4r)^2

SA= \frac{4}{6} \pi rl+16 \pi r^2

\huge \purple {\boxed {SA= \frac{2}{3} \pi rl+16 \pi r^2}}

8 0
3 years ago
Shape 1 and shape 2 are plotted on a coordinate plane. Which statement about the shapes is true?
Nataliya [291]

Answer:

C)

Step-by-step explanation:

if the shapes were rotated it would be easier to prove that the shape are congruent. Hope this helps :)

7 0
2 years ago
PLEASE HELP ME I WILL MARK AS BRAINLIEST ANSWER
mixas84 [53]

Answer:

The answer is 264

Step-by-step explanation:

We start with a ratio of inches to miles-        6:12

we see that it can be simplified to                  1:2

if we see that on the map it is 22in,             22:?

we got 1 to 22 by multiplying 1*22=22

do the same to the 12: 12*22=264

7 0
3 years ago
Plz help!
patriot [66]

 f(x) = −2x + 12, find f(x) when x = −3.

replace x = -3 then

f(-3) = (-2)(-3) + 12

        = 6 + 12

        =18

Answer is C) f(−3) = 18

f(p)=7/11p-10 Find f(77)

f(77) = 7/11 (77) - 10 (cancel out 77 and 11)

        = 7 * 7 - 10

        = 49 -10

        =39

       Answer is D) f(77) = 39

5 0
4 years ago
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