All categories

4 years ago

MARKING BRAINLEST!!!!!!!!!

Mathematics

2 answers:

lapo4ka [179]4 years ago

8 0

Answer:

A 3^4 * 3^-4 / 3^6

C 1 / 3^6

Step-by-step explanation:

( 3^2 * 3^-2)

------------------- all the the power of 2

3^3

First simplify the numerator

We know a^b* a^c = a^(b*c)

( 3^(2+-2))

------------------- all to the power of 2

3^3

( 3^(0))

------------------- all to the power of 2

3^3

( 3^(0))

------------------- all to the power of 2

3^3

We know a^b/ a^c = a^(b-c)

3^(0-3) all to the power of 2

3^-3 all to the power of 2

3^-3 ^2

We know that a^b^c = a^(b*c)

3^(-3*2)

3^ -6

We know the negative exponent takes if from the numerator to the denominator

1 / 3^6

The other correct choice is A

3^4 * 3^-4 = 3^0 which is 1

1/3^6 is the same answer

gladu [14]4 years ago

6 0

Answer:

A and B

Step-by-step explanation:

[3² × 3^-2 ÷ 3³]²

3⁴ × 3^-4 ÷ 3⁶

3^(4-4) ÷ 3⁶

3⁰ ÷ 3⁶

1/3⁶

You might be interested in

Which of the following equations describes the line shown below? Check all

Brilliant_brown [7]

Answer:

y = 7 x + 15

Step-by-step explanation:

6 0

3 years ago

Before going to school, Eudora ran from her home to a secret laboratory at an average speed of 12 km. Since she was running late

Brrunno [24]

Answer:

Eudora spent 0.5 hours in running and 1.5 hours flying using her jet-pack.

Step-by-step explanation:

Let x represent time spent in running.

We have been given that the entire trip took 2 hours, so time spent in flying the jet-packs would be $2-x$ .

We know that distance is equal to speed times time.

$\text{Distance}=\text{Speed}\times\text{Time}$

Eudora ran from her home to a secret laboratory at an average speed of 12 km, so distance traveled by running would be $12x$ .

Eudora took one of her jet-packs and flew to her school at an average speed of 76 km, so distance covered by jet-packs would be $76(2-x)$ .

We are told that Eudora traveled a total distance of 120 km. We can represent this information in an equation as:

$12x+76(2-x)=120$

$12x+152-76x=120$

Combine like terms:

$-64x+152=120$

$-64x+152-152=120-152$

$-64x=-32$

Divide both sides by $-64$ :

$\frac{-64x}{-64}=\frac{-32}{-64}$

$x=0.5$

Therefore, Eudora spent 0.5 hours in running.

Upon substituting $x=0.5$ in expression for time spent in flying jet-packs, we will get:

$2-x\Rightarrow 2-0.5=1.5$

Therefore, Eudora spent 1.5 hours flying using her jet-pack.

7 0

3 years ago

In which of the following do you expect the correlation coefficient to be closest to 1?

Mashutka [201]

Answer:

The answer is c

Step-by-step explanation:

Answer is c sorry not explanation

4 0

3 years ago

PLEASE HELP ASAP PLEASE!!!!

malfutka [58]

Answer:

(3,2)

Step-by-step explanation:

2x-4=y

2y+3x=13

We substitute the y in. They already gave us the equation 2x-4=y simplified so you would just plug this into the other equation

2(2x-4) +3x=13 : *distribute*

4x-8+3x=13 : *combine like terms*

7x-8=13 * add the 8 to the other side*

7x=21 *divide*

x=3

So the y=2x-4 is what we added in the place of the y to subtract it and solve for x. The second step would be solving for y. So now that we have our answer, 3 we plug it into the other equation preferably.

2(3)-4 =y : 6-4=y : 2=y

We can check our answer by pugging both x and y into both equations to make sure they are right. The statement should be true.

2x-4=y 2(3)-4=(2) 2=2

2y+3x=13 2(2)+3(3)=13 13=13

5 0

2 years ago

the left and right page numbers of an open book are two consecutive integers whose sum is 329. Find these page numbers.

vladimir2022 [97]

329-1=328
328/2=164

Answer: page numbers are 164 and 165

8 0

3 years ago