Hey guys! How do I complete this question? Do let me know ASAP thank you!!

Answers

Answer 1

Answer:

Answer:

The answer is 9

2^t =2⁹ so t=9

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For which of the following box-and-whisker plots is the following statement true? 25% of the data falls between 60 and 70.
Write this decimal as a percent: 2.1.
Fine the equation of the line

Given the formula
an = 3 * 2^n-1
What is the 9th term?

Answers

Answer:

a9=3×2^9-1

a9=3×2^8

a9=3×256

a9=768

Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. Find all solutions whenever they exist.X + 3y = 9

3x –y = 7

Answers

Let's write both equations in the standard form of [ y = mx + b ],
and then see what we can tell about their graphs.

First equation:   x + 3y = 9
Subtract 'x' from each side: 3y = -x + 9
Divide each side by 3: y = -1/3 x + 3
This line crosses the y-axis at y=3, and it has a slope of -1/3 .

Second equation:    3x - y = 7
Subtract 3x from each side: -y = -3x + 7
Multiply each side by -1 : y = 3x - 7
This line crosses the y-axis at y=-7, and it has a slope of 3 .

-- The two lines have different slopes, so they're not parallel.
They must intersect somewhere.
-- They're not the same line, so they can't 'intersect' everywhere.
-- They have slopes of -1/3 and 3 . Their slopes are negative reciprocals,
so the lines are perpendicular.

All of this says that the two equations can't have no solution, and they can't have
infinitely many solutions. They must have one and only one solution.
I guess that means that it's our job to find it now.

============================================

For each equation, the "mx + b" form is equal to 'y' . Since these two things are
equal to the same thing, they must be equal to each other, and we can write:

   -1/3 x + 3 = 3x - 7

Multiply each side by 3 : -x + 9 = 9x - 21

Add 'x' to each side: 9 = 10x - 21

Add 21 to each side:    30 = 10x

Divide each side by 10 : 3 = x

The intersection/solution is some place where x=3 .
Let's put that back into the first equation:

   x + 3y = 9

   3 + 3y = 9

Subtract 3 from each side:   3y = 6

Divide each side by 3 : y = 2

And there's your solution: x = 3
   y = 2
On the graph, the two lines intersect at the point (3, 2) .

We used the first equation to get part of the solution, so we can't use
the same equation to check the solution. We'll put our solution into the
second equation, and see whether it checks there:

   3x - y = 7

3(3) - (2) = 7

   9 - 2 = 7

   7 = 7 yay !

The two equations have one and only one solution,
and it is definitely x = 3, y = 2 .

Substitution or Elimination

im using substitution

1. solve for variable for one of the equation

x + 3y = 9

x = 9 - 3y

2. Substitute the variable into one of the equation

3 (9-3y) - y = 7

27 - 9y - y = 7

27 - 10y = 7

-10y = 7 - 27

-10y = -20

y = 2

3. sub y = 2 into any equation to find x

3x - 2 = 7

3x = 7 -2

3x = 5

x = 5/3

X+3(2) = 9

x + 6 = 9

x = 9-6

x= 3

therefore there are two solutions x = 3 and x= 5/3

How do you solve 2.75+.003+.158=

Answers

You line all the decimals up then you add just like regular addition and your answer will be 2.911.

2.750 + 0.003 + 0.158

= 2.753 + 0.158

= 2.911

9y = 423 What inverse operation do we need to use to find the value of y? y=__________

Answers

Answer:

Step-by-step explanation:

9y = 423

We move 9 to the other side and divide by 423.

y = 423/9

y = 47

Our answer is 47.

What is 194 in radical form

Answers

The radical form of 194 = √2 x √97

To find the radical form of 194,

we need to factorize it into its prime factors.

So, let's start by dividing 194 by the smallest prime factor, which is 2,

⇒ 194 ÷ 2 = 97

We can see that 97 is a prime number,

so we can't divide it any further.

Therefore, the prime factorization of 194 is,

⇒ 194 = 2 x 97

Now, we can write the radical form of 194,

⇒√194 = √(2 x 97)

We can simplify this expression by breaking it down into the product of two separate square roots:

⇒ √(2 x 97) = √2 x √97

⇒The radical form of 194 is √2 x √97.

To learn more about radical form visit:

brainly.com/question/29052172

#SPJ6

194 in radical form is just √194. I don't believe any square roots go into it. Hope that helps. :)

The distances (y), in miles, of two cars from their starting points at certain times (x), in hours, are shown by the equations below:Car A
y = 45x + 20

Car B
y = 35x + 60

WILL UPVOTE
After how many hours will the two cars be at the same distance from their starting point and what will that distance be?

3 hours, 200 miles

3 hours, 180 miles

4 hours, 200 miles

4 hours, 180 miles

Answers

If you would like to find the amount of hours and the distance, you can calculate this using the following steps:

y = y
45x + 20 = 35x + 60
45x - 35x = 60 - 20
10x = 40
x = 40 / 10
x = 4 hours

y = 45x + 20 = 45 * 4 + 20 = 200 miles
y = 35x + 60 = 35 * 4 + 60 = 200 miles

The correct result would be 4 hours, 200 miles.

Answer:

4 hours, 200 miles

Step-by-step explanation:

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