6.7 Section 6.7 Integer Exponents and Scientific Notation
Convert from Decimal Notation to Scientific Notation
In the following exercises, write each number in scientific notation.
742. The thickness of a dime is about 0.053 inches.

Answer:

26 is my guess

Answer: (1,2)

Step-by-step explanation:

I will help you..

Given:

[tex]-2x-5y=-12\\10x-4y=2[/tex]

Lets cancel out the x term..

[tex]5(-2x-5y)=-12(5)\\=-10x-25y=-60[/tex]

Now our system looks like this:

[tex]-10x-25y=-60\\10x-4y=2[/tex]

Add.

[tex]-29y=-58\\y=2[/tex]

plug in 2 for y

[tex]-2x-5(2)=-12\\-2x-10=-12\\-2x=-2\\x=1[/tex]

Therefore the system is:

[tex](1, 2)[/tex]

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Answer:

y=2 x=1

Step-by-step explanation:

1.        5(-2x-5y=-12)

10x-4y=2


2.         -10x-25y=-60
                    +

            10x-4y=2

3.            -29y=-60+2

              -29y=-58

                    y=2

Answer:

A

Step-by-step explanation:

[tex]\frac{sin A}{a} = \frac{sin B}{b} = \frac{sin C}{c}[/tex]

Also, you need to subtract the 2 known angles from 180 to find the missing angle measurement. 180 - 85 - 64 = 31

The angles go with the side lengths opposite them.

[tex]\frac{sin 64}{a} = \frac{sin 85}{b} = \frac{sin 31}{9.3}[/tex]

Answer:

25 liters will last 82 minutes.

Step-by-step explanation:

All you have to do is divide 23 by 7 to get the minutes per liter.

This will get 3.285714285714286.

Next you multiply 3.285714285714286 by 25 and you get 82.14285714285714.

But since we need to round the answer by the closest minute the answer would be 82 minutes.

Hope this helped :D

Answer:

(2x-3)x

Step-by-step explanation:

The question has grouping, for the answer you have to ungroup the problem to get your solution.

Answer:

47.92cm²

Step-by-step explanation:

Area = length x width

The graph of this function opens up and all the y-values range from -3 to infinity, so therefore the range is all x≥-3

The range of the function f(x) = |x| – 3 is {f(x) ∈ ℝ | f(x) ≥ –3}. The correct option is A.

The range of a function in mathematics can refer to one of two closely related ideas: The function's codomain a representation of the action A binary relation f between two sets X and Y is a function if there is exactly one y in Y such that f connects x to y for every x in X.

A function is defined as the expression that set up the relationship between the dependent variable and independent variable.

The graph of this function opens up and all the y-values range from -3 to infinity, therefore, the range is all x≥-3. The graph is attached with the answer below.

Therefore, the range of the function f(x) = |x| – 3 is {f(x) ∈ ℝ | f(x) ≥ –3}. The correct option is A.

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Answer:

4.341 or 369÷85

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

the ratios of corresponding sides are in proportion

that is the outer triangle and the inner triangle

[tex]\frac{x}{30}[/tex] = [tex]\frac{88}{44}[/tex] = 2 ( multiply both sides by 30 to clear the fraction )

x = 30 × 2 = 60

Answer:

C. 60

Step-by-step explanation:

I just saw that 44 + 44 equals 88 and compared those two sides, I knew it couldn't be 88, so that's out.  Then, I saw that the side, 21 + 21, was shorter than the unknown side and that ruled out 42 and 30.  60 is the only one that is left and makes sense.

Answer: 1/2, 15/2

Step-by-step explanation:

to solve this absolute value equation, all you need to do is divide the 2 over to the other side of the equation, giving:

|4-x|=7/2

and then you can remove the absolute value symbols and make 2 equations:

4-x=7/2

4-x=-7/2

solve these and you're done!

Answer:

(B). 86°

Step-by-step explanation:

Answer:

4.12

Step-by-step explanation:its 4.12 because all except it are in fraction form and irrational numbers cant be in fraction.

Answer:

Step-by-step explanation:

The angle sum theorem helps you compute the angle inside the triangle. The inscribed angle theorem helps you compute the arc measures outside the triangle.

The Angle Sum theorem tells you the sum of angles in a triangle is 180°. That lets you write the equation ...

  X +Y +Z = 180°

  X +69° +41° = 180°

The Inscribed Angle theorem tells you an inscribed angle has half the measure of the central angle subtending the same arc. The arc and the central angle have the same measure: twice that of the inscribed angle.

  arc ZY = 2×∠X

  arc XY = 2×∠Z

Using the equations we wrote describing the relationships of the unknowns to the known information, we find ...

  X = 180° -110° = 70°

  arc ZY = 2×70° = 140°

  arc XY = 2×41° = 82°

Answer:Angle x=70°

Step-by-step explanation:interior angles add up to 180° so we add 41° and 69°. After addition,you minus from 180° and you get 70°

The coordinate rule for each point is;

R'(x, y) → (x + 2, y + 1)

S'(x, y) → (x + 2, y - 1)

T'(x, y) → (x + 4, y - 2)

Coordinate plane rules is simply (x, y) → (x ± h, y ± k)

where h and k are the horizontal and vertical shifts.

Thus, the coordinate rule for each point is;

R'(x, y) → (x + 2, y + 1)

S'(x, y) → (x + 2, y - 1)

T'(x, y) → (x + 4, y - 2)

The transformation is (x, y) = (x, y) for Point R

The transformation is (x, -y) = (x, -y) for Points S and T

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Answer:

you will use the SOHCAHTOA METHOD IF ITS A TRIANGLE. Not sure

The largest number of different whole numbers that can be on Zoltan's list is 999

The condition is given as:

Number =  1/3 of another number

Or

Number = 3 times another number

This means that the list consists of multiples of 3

The largest multiple of 3 less than 1000 is 999

Hence, the largest number of different whole numbers that can be on Zoltan's list is 999

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Answer:

12

Step-by-step explanation:

12 + 12 + 12 = 36

let each number = X

3x = 36

x = 36/3

x = 12

The given linear equation has one solution: (-0.6, 1.6). The correct option is the second option  one solution: (-0.6, 1.6)

From the question, we are to determine the number of solutions the given linear equation has

The given system of equations is

y = 2/3x+ 2    ---------- (1)

6x - 4y = -10   ---------- (2)

Substitute equation (1) into equation (2)

6x - 4y = -10

6x - 4(2/3x +2) = -10  

6x - 8/3x -8 = -10

6x - 8/3x  = -10 + 8

10x/3 = -2

10x = -2 × 3

10x = -6

x = -6/10

x = -0.6

Substitute the value of x into equation (1)

y = 2/3(-0.6)+ 2

y = -0.4 + 2

y = 1.6

The solution to the given system of equation is x = -0.6, y = 1.6. That is, (-0.6, 1.6)

Hence, the given linear equation has one solution: (-0.6, 1.6). The correct option is the second option  one solution: (-0.6, 1.6)

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Answer:

It will take 1 hour and 24 minutes.

Step-by-step explanation:

Given that:

Eastbound train travels at a rate of 65 miles per hour and Westbound train travels at a rate of 85 miles per hour

So speed = 65 + 85 = 150 miles per hour

Total distance = 210 miles

We have to find the time, we know that

Distance = time * speed

OR

Time = distance / speed

Time = 210/150

Time = 1.4 hours

Or it can be written as:

Time = 1 hour 24 minutes

Hope this helped :D

Answer:

Cos (30°) = √3/2

Step-by-step explanation:

that is the solution above

The value of the trigonometric equation cos ( 30 )° = √3/2

Trigonometry is the study of the relationships between the angles and the lengths of the sides of triangles

The six trigonometric functions are sin , cos , tan , cosec , sec and cot

Let the angle be θ , such that

sin θ = opposite / hypotenuse

cos θ = adjacent / hypotenuse

tan θ = opposite / adjacent

tan θ = sin θ / cos θ

cosec θ = 1/sin θ

sec θ = 1/cos θ

cot θ = 1/tan θ

Given data ,

Let the triangle be represented as ΔABC

Now , the measure of ∠BAC = 30°

The adjacent side of the triangle AC = √3 units

The hypotenuse of the triangle AB = 2 units

So , from the trigonometric relations  

cos θ = adjacent / hypotenuse

On simplifying , we get

cos ( 30 )° = √3/2

Therefore , the measure of cos ( 30 )° = √3/2

Hence , the trigonometric relation is cos ( 30 )° = √3/2

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In the equation, the value of x is 4 and y is 1.

From the information given,

2x - y = 7. ...... i

x + 2y = 6 ....... ii

Multiply equation i by 1

Multiply equation ii by 2

2x - y = 7.

2x + 4y = 12

Subtract both equations

-5y = -5

y = -5/-5

y = 1

From equation i

2x - y = 7.

2x - 1 = 7

2x = 7 + 1

2x = 8

x = 8/2

x = 4

Therefore, x = 4 and y = 1

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Answer:

[-2.5, -2], [-2, -1.5], [1.5, 2] and [2, 2.5) were the  intervals show f(x) decreasing

A relation is a function if it has only One y-value for each x-value.

To find the intervals where a function is decreasing, you need to look for the parts of the function where the slope is negative.

In other words, you need to find the intervals where the function is going downhill.

By the given function or graph the intervals where f(x) is decreasing are

[-2.5, -2], [-2, -1.5], [1.5, 2] and [2, 2.5)

Hence, [-2.5, -2], [-2, -1.5], [1.5, 2] and [2, 2.5) were the  intervals show f(x) decreasing

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The simplified expression of [tex](4^3)(\frac{4^4^0x^4}{3^2x^2y^2})[/tex] is [tex]\frac{4^7x^2}{3^2y^2}[/tex]

The expression is given as:

[tex](4^3)(\frac{4^4^0x^4}{3^2x^2y^2})[/tex]

Expressions raise to power 0 is 1.

So, we have:

[tex](4^3)(\frac{4^4x^4}{3^2x^2y^2})[/tex]

Apply the law of indices to expression with common base

[tex](\frac{4^{4+3}x^{4-2}}{3^2y^2})[/tex]

Evaluate the sum and difference

[tex](\frac{4^7x^2}{3^2y^2})[/tex]

Remove the bracket

[tex]\frac{4^7x^2}{3^2y^2}[/tex]

Hence, the simplified expression of [tex](4^3)(\frac{4^4^0x^4}{3^2x^2y^2})[/tex] is [tex]\frac{4^7x^2}{3^2y^2}[/tex]

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Answer:

P = [tex]\frac{Q-2}{3}[/tex]

Step-by-step explanation:

Q = 3P + 2 ( subtract 2 from both sides )

Q - 2 = 3P ( isolate P by dividing both sides by 3 )

[tex]\frac{Q-2}{3}[/tex] = P

Based on the given information, the equation of this new circle is B. (x - h)² + (y - k)² = r²

The equation of a circle of radius r represents all the points that lie on the circumference of the given circle.

The equation of a circle is:

x² + y² = r²

Where:

r is the radius of a circle.

After translating h units along the x-axis and k units along the y-axis on a coordinate plane,

The equation of this new circle is given by:

(x - h)² + (y - k)² = r²

Where h and k represent the coordinates at the center.

Thus, option B is correct.

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Answer: B) (x - h)² + (y - k)² = r²

Step-by-step explanation:

Edge 2023

Answer:

y=-4 and y=-8

Step-by-step explanation:

When you have an absolute value around something, you can remove it, expect it's like a square root, it's going to be a [tex]\pm[/tex]. Because 6+y could've been -2 and the absolute value just made it positive 2

So set 6+y equal to -2 and 2 to find the two solutions:

6+y = 2

y = -4

6+y = -2

y = -8

Hey there!

YOUR EQUATION: |6 + y| = 2

CONVERT THAT TO:

y + 6 = 2 OR y + 6 = -2

FIRST let’s solve for: y + 6 = 2

y + 6 = 2

SUBTRACT 6 to BOTH SIDES

y = 6 - 6 = 2 - 6

SIMPLIFY THAT!

y = 2 - 6

y = -4

Possible solution #1: y = -4

LASTLY let’s solve for: y + 6 = -2

y + 6 = -2
SUBTRACT 6 to BOTH SIDES

y + 6 - 6 = -2 - 6

SIMPLIFY THAT AS WELL!

y = -2 - 6

y = -8

Possible solution #2. y = -8

Therefore, your answer should be:

y = -4 or y = -8

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

Pesos: $20

Dolares: $1

Step-by-step explanation:

Si la moneda mas alta tiene un valor de $20 pesos, tendria que pagar el primer articulo con 35 monedas. $20 x 35 = $700

Tendria que pagar 25 monedas para el segundo articulo. $20 x 25= $500

Si fuera en dolares, tendria que pagar el primer articulo con 700 monedas y el segundo articulo con 500 monedas.

Espero que esto te haya ayudado :)