Ask question

Ask question

All categories

2 years ago

8

WILL GIVE BRAINLIEST!! NEED HELP PRETTY QUICKLY!! Use U-Substitution to solve the following polynomial. Compare the imaginary ro

ots to the Code Breaker Guide to determine the seventh piece of the code.
4x4 + 2x2 – 12 = 0
Let u =
Equation using u:
Solve for u:
Solve for x:
Imaginary Roots:
Real Roots:
Code Piece:

Thank you!!!!

1 answer:

NARA [144]2 years ago

4 0

Answer:

Step-by-step explanation:

You might be interested in

Sl7t daddy 686868688686868680r34u434-9

ki77a [65]

Answer:

umm i think you might need some help

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The Schuller family has five members. Dad is 6ft 2in tall. Mom is 3 inches shorter than Dad, but 2 inches taller than Ivan. Marc

ohaa [14]

Answer:

62 inches

Step-by-step explanation:

Let x be the height ( in inches ) of Ivan,

∵ Marcia is 5 inches shorter than Ivan,

height of Marcia = x - 5,

Marcia is twice as tall as Sally-Jo,

height of sally-jo = $\frac{x-5}{2}$

Mom is 2 inches taller than Ivan.

⇒ height of mom = x + 2,

Mom is 3 inches shorter than Dad,

height of dad = x + 2 + 3 = x + 5,

So, mean height of family is,

$\frac{x+x-5+\frac{x-5}{2}+x+2+x+5}{5}$

$=\frac{2x+2x-10+x-5+2x+4+2x+10}{10}$

$=\frac{9x-1}{10}$

According to the question,

x + 5 = 74 ( 1 ft = 12 in )

x = 69

Hence, mean height of the family = $\frac{9\times 69-1}{10}$

$=\frac{620}{10}$

= 62 inches

6 0

3 years ago

The height of the tunnel at the center is 35ft, and the vertical clearance must be 21 ft at a point of 8ft from the center. Find

Zinaida [17]

Answer:

y=-0.215x^2+35

Step by Step:

Let, $h=0$ , $k=35$ , $x=8$ , $y=21$

We know that, the general equation of the parabola.

$y-k = a(x-h)^2$

$\Rightarrow y=a(x-h)^2+k .........(i)$

Substitute the value of $h, k, x, y$ in equation $(i)$ and find the value of $a.$

$21=a(8-0)^2+35$

$\Rightarrow 21=a\times 8^2+35$

$\Rightarrow 21=64a+35$

$\Rightarrow 64a=21-35$

$\Rightarrow 64a=-14$

$\Rightarrow a=\frac{-14}{65}$

$\Rightarrow a=-0.215$

Hence, the equation of the parabola is:

$y=-0.215x^2+35$

8 0

3 years ago

The rectangular walkway will be 3 feet wide and 18 feet long. each 2-foot by 3-foot stone covers an area of 6 square feet. how m

anygoal [31]

3x18=54sq ft
2x3=6sq ft
54/6=9 stones needed

7 0

4 years ago

Last year, your store had total sales of $190,000. Because of a downturn in the economy, you expect sales to decrease by 3% this

denis23 [38]

$184,300

$190,000 times .97 = $184,300

8 0

3 years ago

Read 2 more answers