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Eduardwww [97]
2 years ago
6

Rewrite the function by completing the square. f(x)=x^2-4x-26

Mathematics
1 answer:
Radda [10]2 years ago
5 0

Answer:

(x-2)^2-30

Step-by-step explanation:

use the form ax^2+bx+c to find the values of a, b, and c.

a=1, b= -4, c = -26

consider the vertex form of a parabola

a(x+d)^2+e

substitute the values of a and b into the formula d=\frac{b}{2a}

d=\frac{4}{2(1)}

simplify the right side.

find the value of e using the formula e=c-\frac{b^2}{4a}

e=30

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The sides of a triangle are represented by 3x-1, 4x+7, and 2x +11. What is th
Finger [1]

Answer:

9x + 17

Step-by-step explanation:

(3x - 1) + (4x + 7) + (2x + 11)

= 3x - 1 + 4x + 7 + 2x + 11

= 3x + 4x + 2x - 1 + 7 +11

= 9x + 17

5 0
1 year ago
Pls help me with this <br>ans should be well explained ​
Snezhnost [94]

Let's observe

#1st column

  • 3+2+1+4=10

10th alphabet=J

#2nd

  • 5+9+4+6=24

24th alphabet=X

#3rd

  • 2+1+3+3=9

9 th Alpha bet=I

#4th

  • 8+4+9+5=26

26th Alphabet=Z

#5th

  • 7+3+1+2=13

13 th alphabet=M

Option B is correct

5 0
3 years ago
What is the value of x?<br> 155<br> 105<br> A. 55°<br> B. 160°<br> C. 50°<br> O D. 20°
Hatshy [7]
If you are taking one away from the other the answer is 50 degrees so try that hope this helps
=C.
3 0
3 years ago
Brad is having a party and buys a large cube of cheddar cheese at the market. The cube is 4 inches in height. When Brad gets hom
Naddika [18.5K]

Answer:

32 cubic inches

Step-by-step explanation:

4^3= 64

64/2= 32

3 0
3 years ago
Evaulate the function at the indicated values h(t)=t+(3/t)i find h(x-1)
alex41 [277]

<span>h<span>(t)</span>=<span>t<span>34</span></span>−3<span>t<span>14</span></span></span>

Note that the domain of h is <span>[0,∞]</span>.

By differentiating,

<span>h'<span>(t)</span>=<span>34</span><span>t<span>−<span>14</span></span></span>−<span>34</span><span>t<span>−<span>34</span></span></span></span>

by factoring out <span>34</span>,

<span>=<span>34</span><span>(<span>1<span>t<span>14</span></span></span>−<span>1<span>t<span>34</span></span></span>)</span></span>

by finding the common denominator,

<span>=<span>34</span><span><span><span>t<span>12</span></span>−1</span><span>t<span>34</span></span></span>=0</span>

<span>⇒<span>t<span>12</span></span>=1⇒t=1</span>

Since <span>h'<span>(0)</span></span> is undefined, <span>t=0</span> is also a critical number.

Hence, the critical numbers are <span>t=0,1</span>.

I hope that this was helpful.

6 0
3 years ago
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