All categories

3 years ago

100 PIONTS!!!!!!

Mathematics

2 answers:

Dafna1 [17]3 years ago

7 0

Answer:

i think im too late but the answer is b. 2

Step-by-step explanation:

3^{2x} =9^{3 x-4} 3^{2x} =3^{2(3 x-4)} 3^{2x} =3^{6 x-8}

2x = 6x - 8

-4x = - 8

x = 2

thus b. 2 is the correct answer 

Nikolay [14]3 years ago

3 0

C hope that helps your question somehow

You might be interested in

PLEASE HELP AND EXPLAINNNN

trapecia [35]

5000 × .06 = $300 balance $5,300
5300 × .06 = $318 balance $5,618
5618 × .06 = $337.08 balance $5,955.08
5955.08 ×.06 = $357.30 balance $6,312.38

4 0

2 years ago

Below is a proof showing that the sum of a rational number and an irrational number is an irrational number.

ankoles [38]

Answer:

Step-by-step explanation:

To prove: The sum of a rational number and an irrational number is an irrational number.

Proof: Assume that a + b = x and that x is rational.

Then b = x – a = x + (–a).

Now, x + (–a) is rational because addition of two rational numbers is rational (Additivity property).

However, it was stated that b is an irrational number. This is a contradiction.

Therefore, the assumption that x is rational in the equation a + b = x must be incorrect, and x should be an irrational number.

Hence, the sum of a rational number and an irrational number is irrational.

4 0

3 years ago

Read 2 more answers

If triangle ABC is reflected over the y‐axis, reflected over the x‐axis, and rotated 180 degrees, where will point A' lie?

Ronch [10]

Given that ABC is a triangle and is reflected over the y - axis, reflected over the x - axis and rotated 180°

We need to determine the coordinates of the point A'

Reflection over the y - axis:

The coordinates of the point A is (-2,1)

The transformation rule to reflect across the y - axis is $(x,y)\rightarrow (-x,y)$

Substituting the point (-2,1) in the rule, we get;

$(-2,1)\rightarrow (2,1)$

Thus, the coordinates of the point A after reflection over the y - axis is (2,1)

Reflection over the x - axis:

The transformation rule to reflect across the x - axis is $(x,y)\rightarrow (x,-y)$

Substituting the point (2,1) in the rule, we get;

$(2,1)\rightarrow (2,-1)$

Thus, the coordinates of the point A after reflection over the x - axis is (2,-1)

Rotation about 180°:

The transformation rule to rotate about 180° is $(x,y)\rightarrow (-x,-y)$

Substituting the point (2,-1) in the rule, we get;

$(2,-1)\rightarrow (-2,1)$

Thus, the coordinates of the point A after the rotation about 180° is (-2,1)

Therefore, the coordinates of the point A' is (-2,1)

Hence, Option B is the correct answer.

7 0

3 years ago

What is the correct order of operations for simplifying the expression 2 - 3x + 5 + 71 - 5x)2+x

lisov135 [29]

Answer:

Your answer would be: square the binomial, distribute 7 inside the parentheses, and then combine like terms

Step-by-step explanation:

6 0

2 years ago

Darby bought a house for $445,000. She finance $356,175 of the purchase price with a 25 year fixed rate mortgage with a 7.15% in

likoan [24]

It is B Because you are finding the intrest rate which means find the rate first hen subtract the actual rate to the interest rate

7 0

3 years ago