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Anna11 [10]
4 years ago
10

Rewrite the function by completing the square. h(x)= x^2+3x-18

Mathematics
2 answers:
amid [387]4 years ago
7 0

Answer:

h(x)= (x+3/2 ) ^2  −  81/4

​

Step-by-step explanation:

Its correct :)

Crank4 years ago
3 0

Answer:

Step-by-step explanation:

Simplifying

h(x) = x2 + 3x + -18

Multiply h * x

hx = x2 + 3x + -18

Reorder the terms:

hx = -18 + 3x + x2

Solving

hx = -18 + 3x + x2

Solving for variable 'h'.

Move all terms containing h to the left, all other terms to the right.

Divide each side by 'x'.

h = -18x-1 + 3 + x

Simplifying

h = -18x-1 + 3 + x

Reorder the terms:

h = 3 + -18x-1 + x

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Find the sum of the first 8 terms in the sequence 2 8 32 128
Zigmanuir [339]

the sequence is in multiples of 4 (2*4=8, 8*4=32, 32*4=128)

so 128*4=512, 512*4=2048, 2048*4=8192 & 8192*4=32768

2+8+32+128+512+2048+8192+32768=43690 

4 0
3 years ago
Carrie asked 50 randomly selected middle school students at king's high school about their favorite fast food item. twenty-one s
laiz [17]
21 french fries/50 total = x french fries/350 total
Cross Multiply: (21 · 350) = (50 · x)
Divide both sides by 50: (21 · 7) = x
                                           147  = x

Answer: 147 students
7 0
3 years ago
Please I really need this question answered!!! 20 points!! I’ll give brainliest!
kolezko [41]

Answer:

A

Step-by-step explanation:

We can see there are 2 parts of this function: one line for x<1 (because there is a circle for x=1, meaning it disincludes it) and one line for x >= 1 (because there is a filled circle for x=1, meaning it includes it). Therefore, we can disregard choice B (because it has x <= 1 and x > 1 instead of x<1 and x>= 1).

Notice that the part that x<1 passes through the origin, meaning the y-intercept is 0. In y= mx + b form of a line, b is the y-intercept, so b = 0 and we are looking for something in the form of y = mx for x < 1. Wee see that only in choice A that this is satisfied. Therefore, the answer is A.

I hope this helps! :)

3 0
3 years ago
Read 2 more answers
A particular rocket taking off from the earth surface uses fuel at a constant rate of 12.5 gallons per minute the rocket initial
faltersainse [42]

Answer:

y=12.5x+225

Step-by-step explanation:

Let

x ----> the number of minutes

y ----> the amount of fuel in gallons

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the unit rate or slope

b is the y-intercept or initial value

we have that

The unit rate or slope is equal to

m=12.5\ \frac{gal}{min}

b=225\ gal ----> initial value (value of y when the value of x is equal to zero)

substitute

y=12.5x+225

3 0
3 years ago
I need help with this please help me
Katena32 [7]
I need help with this too i dont know the process

7 0
3 years ago
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