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Ilya [14]
3 years ago
6

Find the value of c that makes each trinomial a perfect square. x^2+5x+c

Mathematics
1 answer:
fredd [130]3 years ago
5 0

Answer:

25/4

Step-by-step explanation:

x² + 5x + c

x² + 2(x)(5/2) + (5/2)²

(5/2)² = 25/4 or 6¼

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I could use help with this asap
aksik [14]

Answer:

Step-by-step explanation:

6 0
3 years ago
Iii. Divide and simplify if possible.<br> 7)<br> 5V2u y2<br> V 18uv4<br> 8)<br> 3V 50x’y<br> V2.xy
Luden [163]
Ummm let’s see......

3xy(1/3)
7 0
3 years ago
A cardboard box of 32 in^3 volume with a square base and open top is to be constructed. What is the length of base that will min
stiv31 [10]
Volume = are base*height
32 = x^2*h --> h = 32/x^2

surface area =  4x(32/x^2) + x^2 
SA = 128/x + x^2

SA' = -128/x^2 + 2x = 0
2x = 128/x^2
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x^3 = 64
x = 4

surface area minimized when length of base is 4 in.

hope this help
6 0
3 years ago
Read 2 more answers
A ball was kicked into the air from a balcony 20 feet above the ground, and the ball’s height above the ground, in feet, t secon
Svet_ta [14]
h(t)=20-16t^2+32t \\ \Downarrow \\ h(t)=-16t^2+32t+20 \\ \\&#10;a=-16 \\ b=32

The maximum height is the y-coordinate of the vertex (x,y) of the parabola.
First find the x-coordinate using the formula:
x=\frac{-b}{2a}=\frac{-32}{2 \times (-16)}=\frac{-32}{-32}=1

Now plug the value into the equation and find the y-coordinate:
y=h(x)=h(1)=-16 \times 1^2+32 \times 1+20=-16+32+20=36

The maximum height is 36 feet.
8 0
4 years ago
Factor: 4x2 - 6x - 2x + 3
ella [17]

Answer:

(2x−1)(2x−3)

Step-by-step explanation:

4x² - 6x - 2x + 3

= 4x² - 8x + 3 (by factorization method, or choose any of your favorite methods)

= (2x−1)(2x−3)

3 0
4 years ago
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