Given the following perfect square trinomial, fill in the missing term. (2 points) 4x^2+16x+____

Mathematics

2 answers:

Svet_ta [14]2 years ago

8 0

Not sure sorry ok my bad

zhannawk [14.2K]2 years ago

3 0

Answer:

4x^2 + 16x + 16

Step-by-step explanation:

xsquared + 8x + 16

4x^2+16x+____

divide by four:

x^2+4x+_4_ {(x + 4)^2}

times by four:

4x^2+16x+_16_

You might be interested in

Which could be the name of a plane? please help i will mark brainiest

Scorpion4ik [409]

I think it would be JK but im not really sure

8 0

2 years ago

(4x+7)^2=60 how to do extracting the square root?

4vir4ik [10]

(4x + 7)² = 60
(4x + 7)(4x + 7) = 60
(4x² + 28x + 28x + 49) = 60
4x² + 56x + 49 = 60
 -49 -49
 4x² + 56x = 11
4x² + 56x - 11 = 11 - 11
4x² + 56x - 11 = 0
x = -56 +/- √(56² - 4(4)(-11))
 2(4)
x = -56 +/- √(3136 + 88)
 8
x = -56 +/- √(3174)
 8
x = -56 +/- 56.34
 8
x = -7 +/- 7.0425
x = -7 + 7.70425 x = -7 - 7.70425
x = 0.70425 x = -14.70425

8 0

2 years ago

The accompanying data on x= head circumference z score (a comparison score with peers of the same age - a positive score suggest

djverab [1.8K]

Answer:

$r=0.77$ , $\hat{y}=770.50+39.37x$ and volume of cerebral brey matter for a child whose head circumference Z score at age 12 months was 1.9 is $\hat {y}=920.10$

Step-by-step explanation:

We attached a table below,

$(a)$ We attached a table below,

Therefore ,

correlation coefficient $r=\frac{\frac{1}{18}(21766.7)-(\frac{27.25}{18} )(\frac{13890}{18} ) }{\sqrt{\frac{1}{18} (59.8435)-(\frac{27.25}{18} )^2}\sqrt{\frac{1}{18}(10767400)-(\frac{13890}{18} )^2 } }$

$=\frac{41.04}{53.19}$

$=0.77$

$(b)$ We calculate the least squares equation.

$b_1=r(\frac{\sigma_y}{\sigma_x} )\\ =(0.77)(\frac{\sqrt{\frac{1}{18} (10767400)-(\frac{13890}{18} )^2} }{\sqrt{\frac{1}{18}(59.8435)-(\frac{27.25}{18} )^2 } } )\\ =0.77(\frac{52.15}{1.02} )\\ =0.77(51.13)\\ =39.37$