The number below is not correctly written in scientific notation.


145 × 105

What is the new exponent for the power of 10 after rewriting the number correctly in scientific notation?


1.45 × 10?


Write the new exponent in the blank below. PLEAZ HELP will give brainliest

Answer:

7.07070707E15

Step-by-step explanation:

12 x 5 = 60

10x 6= 60

so 5 packs of pencils and 6 packs of erasers.

The equation is a quadratic equation.

Linear equation is a equation whose degree is 1. Degree is defined as the highest power of the variable in a polynomial function.

Quadratic equation is a equation whose degree is 2.

Exponential equation is a equation in which the variable appear a exponents.

Now we have been the equation that is,

                  [tex]y=3(x + 1)^{2}[/tex]

Expanding this we would get

                  y = 3([tex]x^{2}[/tex] + 1 + 2x)

                  y = 3[tex]x^{2}[/tex] + 2x + 3

Here the highest power is 2 that is the degree is 2 . Thus this equation is a quadratic equation.

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Answer:

Step-by-step explanation:

90-degree rotation

Let me explain, you see point B? Yeah, okay. 90 degrees is a right angle, so you see how the replica blue B is on the line a right angle from it?

That's how you figure that out, if the point is on a line 90 degrees from it it's a 90-degree rotation

If you remain confused please don't hesitate to ask :))

Answer:

17.

Step-by-step explanation:

Multiply rate by 2

8 1/2 * 2 = 17

To receive the greatest discount, the customer should first apply the membership discount and then take the rebate.

We are given that:

Rebate a customer receives if he buys a regular priced CD at $ 13 each = $ 5.

If a customer registers for the store member, he get a discount = 15 %.

Now, let the regular priced CD purchased be x and the application for store member be y.

So, the functions will become:

For rebate:

R (x) = 5 x

For discount:

M (y) = 15 % of x

M (y) = 0.15 x

Now, the amount a customer has to pay if she takes the membership and then takes the rebate =(1 − 0.15) (13 x) − 5 x = 6.05 x

And, if he takes the rebate first and then take the membership, he pays = (13 - 5 x)( 1 - 0.15) = 6.8 x

Therefore, we get that, to receive the greatest discount, the customer should first apply the membership discount and then take the rebate.

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The child that will have a greater percentage of increasing amounts is; The child with original amount of $500

The amount that has increased from the initial number to the final number in terms of 100 parts of the original is essentially what the concept of percentage increase refers.

We are given that the original amount found in their savings account are;

First child; A = $500

Second child; B = $300

Thus the first child denoted by A has greater amount in savings compared to the second child and as such child A will have a greater percentage of increasing amounts.

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Answer: The older child.

Step-by-step explanation: The original amounts in their savings accounts

were $500 and $300, respectively.

Answer:

j

Step-by-step explanation:

kl

Answer:

9.5

Step-by-step explanation:

[tex]\frac{KQ}{BK} = \frac{?}{?}\\ KQ = \frac{BK}{2}\\KQ = \frac{19}{2}\\KQ = 9.5[/tex]

Answer:

√50, 7.6, √65, √78.8, 8.2

Step-by-step explanation:

might be wrong but i'm pretty sure this is it

The pounds of apple left after 1 week is 2.1 pounds.

The pounds of apple would decline each day that Sandy eats it.

An exponential function is a function that is used in mathematics with the form: f ( x ) = [tex]a^{x}[/tex]

Where:

The pounds of apple left = initial pounds of apple x (1 - rate at which she eats it)^number of days

10 x (1 - 0.2)^number of days

10 x 0.8^7 = 2.1 pounds

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All the ways of sampling the students that would produce a representative sample are Simple random sampling, Strafied random sampling, Systematic sampling, Cluster sampling, Convenience sampling.

Sampling : In statistics, quality assurance, and survey methodology, sampling is the selection of a subset of individuals from within a statistical population to estimate characteristics of the whole population.

Given that Clayton wonders what types of sports the students at his school like to play. So, he plans to ask a small sample of them.

Explanation:

Let us assume that there are 3000 students in Clayton's school and he has to choose a sample of 20 students.

1) Simple random sampling - Pick 20 of the students of the school from the 3000 students there are in his school.

2) Strafied random sampling - Divide all the students of the school into 4 grades and randomly pick 5 students from each of the grades.

3) Systematic sampling - Pick evert 7th student who enters the school premises until 20 students are picked.

4) Cluster sampling - Pick several 1st period classes of the school then randomly pick students from those classes.

5) Convenience sampling - Ask 20 students from all the 3000 students in the school recess.

Therefore, All the ways of sampling the students that would produce a representative sample are Simple random sampling, Strafied random sampling, Systematic sampling, Cluster sampling, Convenience sampling.

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The solution of 4+√3 x+5=7  is x = ( - 2 ) / [tex]\sqrt{3}[/tex] .

Linear Equation : An equation ( containing equal to = sign ) is called a linear equation if the highest power of variable is 1 . In order to solve linear equation in 1 variable 1 equation is enough .

Solving linear eq . in 1 variable

4+√3 x+5=7

√3 x = 7 - 5 - 4

x = ( - 2 ) / [tex]\sqrt{3}[/tex]

Hence , the solution of 4+√3 x+5=7  is x = ( - 2 ) / [tex]\sqrt{3}[/tex] .

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Answer:

tan4θ=(4tanθ−4tan^3θ)/(1−6tan^2θ+tan^4θ)

Step-by-step explanation:

[tex]ln(e^x) \geq 1[/tex] is sometimes true, by seen by operations on logarithm.

Now,

For example, let x = 0.1

Then, [tex]ln(e^{(0.1)}) = 0.1 < 1[/tex]

For example, let x = 2

Then, [tex]ln(e^2) = 2 > 1[/tex]

Hence, [tex]ln(e^x) \geq 1[/tex] is sometimes true, by seen by operations on logarithm.

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If the two functions be f(x) = 3x² - 11x - 4 and g(x) = 3x + 1 then

(fg)(x) = f(x)g(x) = [tex]$$9x^3[/tex] - 30x² - 23x - 4

(f/g)(x) = f(x)/g(x) = x - 4

Function operations are the rules we use to solve functions. There is a specific way to deal with function addition, multiplication, and division.

Function composition is a mathematical operation that takes two functions f and g and produces a function h = g f such that h(x) = g(f(x)). The function g is applied to the result of applying the function f to x in this operation.

Let the two functions be f(x) = 3x² - 11x - 4 and g(x) = 3x + 1.

(fg)(x) = f(x)g(x)

= (3x² - 11x - 4) (3x + 1)

simplifying the above equation, we get

= 3x² [tex]*[/tex] 3x + 3x² [tex]*[/tex] 1 - 11x [tex]*[/tex] 3x - 11x [tex]*[/tex] 1 - 4 [tex]*[/tex] 3x - 4 [tex]*[/tex] 1

= [tex]$$9x^3[/tex] - 30x² - 23x - 4

Therefore, (fg)(x) = f(x)g(x) = [tex]$$9x^3[/tex] - 30x² - 23x - 4

(f/g)(x) = f(x)/g(x)

Where, f(x) = 3x² - 11x - 4 and g(x) = 3x + 1.

f(x)/g(x) =  (3x² - 11x - 4)/(3x + 1)

= [(3x + 1)(x - 4)]/(3x + 1)

canceling the common factors we get

= x - 4

Therefore, f(x)/g(x) = x - 4

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The expression ∛(a)⁷  raised to a single rational exponent is  [tex]a^{\frac{7}{3} }[/tex] .

A rational number is one that can be defined as the ratio or fraction a/b of two numbers, where a and b are the numerator and denominator, respectively. Here the integer numbers a and b are co prime numbers.

For example 8/7 is a rational number and all integers are rational numbers.

Any combination of terms that have undergone operations like multiplication,addition, subtraction, division is known as an algebraic expression.

it is given that the expression is of the form ∛(a)⁷ .

We know that the n-th root of a variable x ([tex]\sqrt[n]{x}[/tex]) can also be written as

[tex]x^{\frac{1}{n} }[/tex].

Therefore  ∛(a) can be written as [tex]a^{\frac{1}{3} }[/tex] . Now the complete expression is ∛(a)⁷.

So [tex](a^{\frac{1}{3} })^7=a^{\frac{7}{3} }[/tex] and we know that 7/3 is a rational number.

Therefore the expression can be written as [tex]a^{\frac{7}{3} }[/tex] using rational exponents.

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The three consecutive odd integers are 17, 19 and 21 respectively.

Linear equations are equations that has a leading degree of 1. Given the three consecutive odd numbers to be

2x+1, 2x+3 and 2x+5

If the sum of the smallest number and middle number is 27 less than three times the largest number, then;

2x + 1 + 2x + 3 = 3(2x+5) - 27

Simplify

4x + 4 = 3(2x) + 3(5) - 27

4x + 4 = 6x + 15 - 27

4x - 6x = 15 - 27 - 4

-2x = -16

x = 16/2

x = 8

Determine the numbers

Smallest number = 2x + 1

Smallest number = 2(8) + 1 = 17

Middle number = 2x + 3

Middle number = 2(8) + 3

Middle number = 19

Largest number = 2(8) + 5

Largest number = 21

Hence the three consecutive odd integers are 17, 19 and 21 respectively.

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the easiest way to solve division is to first use calculator if you don't have it you can count the number by dividing them

The possible values of angles A and C are;

60° and 70° or 55° and 75°

An acute triangle is a triangle that has all the measures of its angles to be less than 90°.  This means that none of the angles is greater than 90°

Since sum of the angles in a triangle is equal to 180°, then it means that;

∠A + ∠B + ∠C = 180°

We are given that;

∠B = 50°

Thus;

50° + ∠A + ∠C = 180°

∠A + ∠C = 180° - 50°

∠A + ∠C = 130°

It should be noted that all the angles of the acute triangle are also different.

Thus, the possible values of A and C are 60° and 70° or 55° and 75° because their sum must be equal to 130°

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Answer:

x = -6/5

Step-by-step explanation:

Find the value of x.

-2x = 3x + 6​

Subtract 3x from each side

-2x-3x = 3x-3x + 6​

-5x = 6

Divide each side by -5

-5x/-5 = 6/-5

x = -6/5

Step-by-step explanation:

It is here that equilibrium level of income is established because what the savers intend to save becomes equal to what the investors intend to invest. Sum and substance is that if planned saving and planned investment are equal, then output, income, employment and price level will be constant.Kindness is defined as the quality of being friendly, generous, and considerate. Affection, gentleness, warmth, concern, and care are words that are associated with kindness

A linear equation that relates the cost of c in dollars of renting a truck to the number x of miles driven is c = 0.09x + 39, and the cost of renting the truck if the truck is driven 187 miles and 319 miles is equal to $55.83 and $67.71 respectively.

If the rental company rents a truck by charging $34 and 0.09$ per mile, the liner equation can be given as

c = 0.09x + 39

where c represents the cost in dollars of renting the truck and x represents the number of miles

If the truck is driven 187 miles, it can be calculated using the linear equations as follows,

c = 0.09x + 39

As x = 187

c = 0.09 (187) + 39

c = 16.83 + 39

c = 55.83

If the truck is driven 319 miles, it can be calculated using the linear equations as follows,

c = 0.09x + 39

As x = 319

c = 0.09 (319) + 39

c = 28.71 + 39

c = 67.71

Hence the cost in dollars of renting the truck if the truck is driven 187 miles and 319 miles is calculated to be 55.83 and 67.71 respectively.

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Answer:

she got 30 dollars.

Step-by-step explanation:

2x3x=50

5x=50

5x/5=50/5

=10

10*3=30 dollars

When written as a fraction, 0.116 can be found to be the equivalent of 29 / 250

The value of 0.116 has 3 decimals after the decimal point. This means that it is a thousandth decimal.

The fraction form is therefore:
= 116/1,000

You can then take this to be simplest form:
= (116 / 2) / (1,000 / 2)

= 58 / 500

= (58 / 2) / (500 / 2)

= 29 / 250

In conclusion, 0.116 = 29/250

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points of discontinuity are x = -4&x = +4.

x = +4 is removable discontinuity

The x- intercept is x = 0The y- intercept is y= -(1/16).

points of discontinuity:

In rational functions, points of discontinuity are defined as fractions with undefined or zero as their denominator. When the denominator of a fraction is 0, the fraction is no longer defined and shows up as a hole or break in the graph.

points of discontinuity removable:

A point on the graph that is removable discontinuity is one that may be filled in with a single value despite not existing.If an is zero for a factor in the denominator that shares a factor with a factor in the numerator, a removable discontinuity at x=a in the graph of a rational function occurs.

points of discontinuity non removable:

A function's break that cannot be repaired with a single point is referred to as a non-removable discontinuity. It cannot be filled in with a single point, a vertical asymptote (a vertical line that the graph approaches but never crosses because the function is undefined at that x-value) is non removable.

given that y=1/x²-16

write 16 as a 4²

[tex]y = \frac{1}{ {x}^{2} - {4}^{2} } [/tex]

[tex]y = \frac{1}{(x + 4)(x - 4)} [/tex]

now,

domain : x !=4.

points of discontinuity are

(x+4) = 0 (x-4) = 0

x = -4 x = +4

Here x = +4 is removable discontinuity.

The x- intercept is

if x = 0, then

[tex]y = \frac{ 1}{ - 16} [/tex]

The y- intercept is

if y = 0

x = 0.

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The AC in Rhombus ABCD is 16 cm.

In question it is not given that what is E, so, let suppose that E is intersecting point of diagonals AC and BD of rhombus with side AB, BC, CD and DA.

Rhombus is a parallelogram with four equal sides and sometimes one with no right angles.

As it is given that AE =8 cm.  

And, we know that AC is diagonal rhombus,

so, as E is middle point of diagonal AC

Then,    AC  = 2 × AE

            AC  = 2 × 8

Hence,  AC  = 16 cm.

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Answer:

28y-196

Step-by-step explanation:

28(y-7)

Multiply y and -7 by 28.

(28*y)-(7*28)

Simplify.

28y-196

The median of the data is 4.

The mean of data is the ratio of the sum of observations to the total number of observations. The Median is defined as the middle value of data.

Data:23,25,32,35,36,25,27.

The mean of the data is, 

[tex]Mean = \frac{Sum \: of \: observation }{Total \: number \: of \: observation}[/tex]

= 23+25+32+25+36+27+27 7 

=29 

The mean of the data is 29.

The median of the data is, 

Arranging the data in ascending order, 

23,25,25,27,32,35, 36 

[tex]Meadian= \frac{n+1}{ 2} = \frac{ 7+1}{ 2 }[/tex]

= 4 

Therefore, the median of the data is 4.

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Answer:

x=7 -2x+4=-10

-2x+4-4=-10-4

Step-by-step explanation:

this should be right pick me brainliest

Confirmed Solution:

[tex]x=7[/tex]

Further Explanation:

Displayed Above

Hope this helps!

3 log (x) - log (6) + log (2.4) = 9 => x = 1357.28, by properties of logarithm.

Now,

3 log (x) - log (6) + log (2.4) = 9

=> 3 log (x) - 0.778 + 0.38 = 9

=> 3 log (x) = 9 - 0.38 + 0.778 = 9.398

=> log (x) = 3.13267

Since, generally the base of log is 10, raising them to 10.

=> [tex]10^{log_{10}(x)} = 10 ^{3.13267}[/tex]

=> x = 1357.28

Hence, 3 log (x) - log (6) + log (2.4) = 9 => x = 1357.28, by properties of logarithm.

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