Which expression is equivalent to (a^8)^4

What is the growth (or slope) of the simplified equation??

DIA [1.3K]

Answer:i think its y+3x+8x-7

Step-by-step explanation:i dont have to explain

4 0

2 years ago

True or False: A race car driver tested his car for time from 0 to 60 mph, and in 20 tests obtained an average of 4.85 seconds w

vredina [299]

Answer:

False

Step-by-step explanation:

given that a race car driver tested his car for time from 0 to 60 mph, and in 20 tests obtained an average of 4.85 seconds with a standard deviation of 1.47 seconds.

Sample size n = 20

since population standard deviation is not known, we can use t critical value for finding out the confidence interval

df=19

t critical = 2.045

Margin of error = $2.045*\frac{s}{\sqrt{n} } \\=2.045*\frac{1.47}{\sqrt{20} } \\=0.6722$

conidence interval = Mean±Margin of error

= $(4.85-0.6722, 4.85+0.6722)\\= (4.1778, 5.5222)$

The given confidence interval is (4.52, 5.18)

Hence the statement is false.

5 0

3 years ago

Anna and Maya are competing in a dance tournament where dance moves are worth a certain number of points if a dance move it's do

Gre4nikov [31]

Anna's current number of points = 225 points.

She danced correctly and earned = 75 points.

And when she danced incorrectly she loses = 30 points.

Note: For dancing correctly earned points will be added and for dancing incorrectly loses points will be subtracted from the total points has in starting.

So, we can setup an expression as

Current points + earned points - loses points

Plugging values, we get

225 +75 -30 Required expression.

Adding 225 and 75, we get 300.

Therefore, 225 +75 -30 = 300-30.

Subtracting 30 from 300, we get

300-30=270.

Therefore, Anna's final score is 270 points.

6 0

3 years ago

Solve the system by substitution.<br> — 6x — 5y = 11<br> x = у

Margarita [4]

Answer:

(x, y) =(-1, - 1)

Step-by-step explanation:

-Substitute the value of x

-solve the equation

-Substitute the value of y

-check the possible solution

-check solution

-simplify

5 0

3 years ago

|2/3-3/2|3^2-17/3 a)11/16 b)11/6 c)79/6 d)83/6

vfiekz [6]

Answer: The correct answer is: [B]:

____________________________________

→ " $\frac{11}{6}$ " .

____________________________________________

Explanation:

We are asked to solve: |2/3-3/2|3^2-17/3 ;

Let's rewrite this problem as:

____________________________________________

Simplify:

" | $\frac{2}{3} - \frac{3}{2}$ | * $3^{2} - \frac{17}{3}$ | " ;

____________________________________________

7 0

3 years ago