Nine is less than the difference of a number(n) and 1.
help pls

Answer:

Step-by-step explanation:

\(3*(2x)^{2} +1=3*4x^{2} +1=12x^{2} +1\)

you will take f(x) as x in g(x) , the you'll right 2x in every x in g(x)

Answer:

75+3x=180

Step-by-step explanation:

Answer:

75 + 3x = 180

Step-by-step explanation:

The sum of the measures of the angles of a triangle is 180°.

45 + 30 + 3x = 180

75 + 3x = 180

Answer:

%20

Step-by-step explanation:

The equation of the circle is \(x^2 + y^2 + 6x - 18y + 65 = 0\).

Given:

Equation of the circle is \((x+3)^2+(y-9)^2=5^2\)

Expand the equation

\((x+3)^2 = (x+3)(x+3) = x^2 + 3x + 3x + 9 = x^2 + 6x + 9\)

\((y-9)^2 = (y-9)(y-9) = y^2 - 9y - 9y + 81 = y^2 - 18y + 81\)

\(5^2 = 25\)

Then, substitute the expanded expressions into the equation

\((x+3)^2+(y-9)^2=5^2\\(x^2 + 6x + 9) + (y^2 - 18y + 81) = 25\\\)

Simplify and combine like terms

\((x^2 + 6x + 9) + (y^2 - 18y + 81) = 25\\x^2 + y^2 + 6x - 18y + 90 = 25\)

Rearrange the equation so that one side is 0

\(x^2 + y^2 + 6x - 18y + 90 = 25\\x^2 + y^2 + 6x - 18y + 90 - 25 = 0\\x^2 + y^2 + 6x - 18y + 65 = 0\)
Thus, the equation of a circle \((x+3)^2+(y-9)^2=5^2\) can be rearranged using the distributive property to form \(x^2 + y^2 + 6x - 18y + 65 = 0\), with one side equaling 0.

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There are no vectors among the options provided that are parallel to (1²2).

To determine if two vectors are parallel, we can compare their direction ratios.

Two vectors are parallel if their direction ratios are proportional.

Let's compare the given vector (1²2) with each of the options provided:

Vector (7²) (12²) (-22) (3) 12/ (ő) 4 24 3 13/​:

Comparing the direction ratios, we have:

1/7 = 2/12 = 2/-22 = 3/4 = 24/3 = 12/13.

Since the direction ratios of the given vector (1²2) are not proportional to the direction ratios of any of the options, none of the options are parallel to (1²2).

summary, none of the vectors (7²) (12²) (-22) (3) 12/ (ő) 4 24 3 13/​ are parallel to the given vector (1²2).

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The number of minutes that Greg rode on the scooter is; 69 minutes

Algebraic word problems are defined as questions that require translating sentences to equations, then solving those equations. and a single variable.

The general form for the equation of a line in slope intercept form is;

y = mx + c

where;

m is slope

c is y-intercept

Initial fee paid is $2. Thus, y-intercept = $2.

Cost per minute = 12 cents of $0.12 and as such the slope is $0.12.

Thus, equation of line here is;

y = 0.12x + 2

where x is number of minutes

If total cost was $10.28, then;

10.28 = 0.12x + 2

0.12x = 8.28

x = 8.28/0.12

x = 69 minutes

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Answer:

y = \(\frac{5}{4} x - 7\)

Step-by-step explanation:

Step 1: Add -5x to both sides.

5x − 4y + −5x = 28 + −5x

−4y = −5x + 28

Step 2: Divide both sides by -4.

\(\frac{-4y}{-4} =\frac{-5x +28}{-4}\)

y = \(\frac{5}{4}x -7\)

Answer:

y=-  -5/4x-7 go to question 7

Step-by-step explanation:

y=-  (-5x+28)

         4

then simplify if you need more steps i will show

Answer:

D. The money that Kai started with before he mowed any lawns.

Step-by-step explanation:

We Know

The equation is y = mx + b

The x represents the number of lawns that Kai mows.

What does the y-intercept represent in this equation?

The y-intercept is when the x = 0, meaning the y-intercept is the amount of money he has when mowing 0 lawn. So, the answer is D.

Answer:

The Answer is D

Step-by-step explanation:

the answer in scientific notation rounding to 2 decimal places is given by 68490.98

What is 6.849 times ten to the fourth power minus 2.329 times ten to the negative second power express the answer in scientific notation rounding to 2 decimal places.

6.849 *(10)^4=6.849* 10000=68490

2.329*(10)^-2= 0.02329

according to the question

6.849 times ten to the fourth power minus 2.329 times ten to the negative second power

therefore 68490-0.02329

           =68489.9767

round to 2 decimal

the answer in scientific notation rounding to 2 decimal places is given by 68490.98

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Bryant used 8 centimeters of tape to wrap 2 presents. The relationship between the amount of tape used and the number of presents is directly proportional.

We have to determine how many presents Bryant could wrap if he used 12 centimeters of tape.Using the relationship that the amount of tape used and the number of presents are directly proportional. We can set up a proportion: centimeters of tape/number of presents = centimeters of tape/number of presents8/2 = 12/xSolving for x, we get:x = 3Therefore, if Bryant used 12 centimeters of tape, he could wrap 3 presents.

If we think in terms of word count, we can write the following:To determine the number of presents that Bryant could wrap if he used 12 centimeters of tape, we set up a proportion. Using the relationship that the amount of tape used and the number of presents are directly proportional, we can say that 8 centimeters of tape can wrap 2 presents. Thus, 12 centimeters of tape can wrap x presents. We solve for x by cross-multiplying: 8x = 24. Therefore, x = 3. Hence, Bryant could wrap 3 presents using 12 centimeters of tape.

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Answer:

19/3 (6 1/3)

Step-by-step explanation:

Answer:

2x=-4

x=-2

Step-by-step explanation:

Answer:

x= -2

Step-by-step explanation:

isolate x

2x+8=4 subtract 8 on both sides

2x=-4 divide 2 on both sides

x= -2

C. The probability of the type I error best defines the notion of the significance position of a thesis test.

The significance position, denoted by alpha( α), is the probability of rejecting the null thesis(H_o) when it's actually true. This is also known as a type I error, which occurs when we inaptly reject a true null thesis.

Option a isn't correct because the probability of rejecting H_o, whether it's true or not, isn't fixed and depends on the sample and the chosen significance position.

Option b isn't correct because it describes the p- value, which is a affiliated conception but not the significance position. The p- value is the probability of observing a sample statistic as extreme or more extreme than the one actually attained, assuming the null thesis is true.

Option d is also not correct because it describes the probability of a type II error, which occurs when we fail to reject a false null thesis. The probability of a type II error is denoted by beta( β) and is told by factors similar as sample size and effect size.

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Answer:

girls/boys =21/18 =7/16 the ratio is 7:6

Answer:

7 : 6

Step-by-step explanation:

Solution:

No. of boys = 18

No. of girls = 21

So,

The ratio of girls to boys = No. of girls / No. of boys

= 21 / 18

= 7 / 6

Therefore, the ratio of girls to boys is 7 : 6.

The correlation coefficient ρ for X and Y is ρ = -0.6675 in the given function.

The correlation coefficient is a statistical concept that aids in establishing a relationship between expected and actual values obtained through statistical experimentation. The calculated correlation coefficient's value explains why the difference between the predicted and actual values is so exact.

Correlation Coefficient value is always in the range of -1 to +1. A similar and identical relationship exists between the two variables if the correlation coefficient value is positive. Otherwise, it reveals how differently the two variables behave.

Pearson's correlation coefficient is calculated by taking the covariance of two variables and dividing it by the sum of their standard deviations. is typically used to represent it (rho).

The correlation coefficient is computed as,

\($ \rho & =\frac{{Cov}(X, Y)}{\sqrt{V(X)} \times \sqrt{V(Y)}}\)

\($=\frac{-0.0267}{\sqrt{0.04} \times \sqrt{0.04}}\)

= -0.6675

Thus, the correlation coefficient ρ for X and Y is ρ = -0.6675.

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Answer:

5x

Step-by-step explanation:

NOte: it is an expression and not an equation as originally asked.

"Product" means the answer to a multiplication of two numbers.

You are asked to write the answer to 5 and a number being multiplied together.

Let the unknown number be

x

The product is therefore

5x

x

=

5x

Answer:

true

Step-by-step explanation:

because there's less humidity

The domain of the function \(f(x) = \sqrt(5 - 7x)\) is the set of all x-values less than or equal to -5/7 that is (-∞, -5/7]

To find the domain of the function \(f(x) = \sqrt(5 - 7x)\), we need to determine the values of x for which the expression inside the square root is defined.

Since the square root of a negative number is undefined in the real number system, we must ensure that \(5 - 7x \geq 0\) to avoid taking the square root of a negative value.

Solving the inequality:

\(5 - 7x \geq 0\\\)

First, subtract 5 from both sides:

\(-7x \geq -5\)

Then, divide both sides by -7, remembering to reverse the inequality sign:

\(x \leq -5/7\)

Therefore, the domain of the function \(f(x) = \sqrt(5 - 7x)\) is the set of all x-values less than or equal to -5/7.

In interval notation, the domain can be expressed as:

(-∞, -5/7]

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3.31×\(10^-^5\) g is equivalent to 0.0331 μg which is obtained by using the conversion factor.

To convert from grams to micrograms, we need to consider the conversion factor that relates the two units. The prefix "micro-" represents a factor of \(10^-^6\), which means there are 1,000,000 micrograms in a gram. Therefore, to convert grams to micrograms, we multiply the given value by 1,000.

In this case, we have 3.31×\(10^-^5\) g. To convert this value to micrograms, we can multiply it by 1,000:

= 3.31×\(10^-^5\) g × 1,000

= 3.31×\(10^-^5\) × 1,000

= 3.31×\(10^-^5\) × \(10^{3}\)

= 3.31×\(10^(^-^5^+^3^)\)

= 3.31×\(10^-^2\)

= 0.0331 μg

Therefore, 3.31×\(10^-^5\) g is equivalent to 0.0331 μg.

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Answer:

235.5.

Step-by-step explanation:

VOLUME: THE AMOUNT OF SPACE OCCUPIED BY A 3D OBJECT.

The formula for volume of a cylinder is:

\(pi*r^2*h (3.14 * radius *radius * height)\)

The radius of this cylinder is 5 and the height is 3.

Now, we can plug the numbers in the formula.

SOLVE:

\(pi *5^2*3(3.14*5*5*3)=235.5.\)

The product of the equation is 235.5.

I, therefore, believe the volume of this cylinder is 235.5.

The number of ways to replace all the -1s in the array is zero.

The array can be represented as a wave if and only if the number of -1s is even. This is because each -1 must be replaced with a positive integer in order to create a wave, and replacing one -1 with a positive integer will create a new -1 on the opposite side of the wave. Therefore, if there are an odd number of -1s, it is impossible to create a wave.

In the given array, there are 7 -1s, which is an odd number. Therefore, it is impossible to replace the -1s with positive integers in such a way that the resulting array can be represented as a wave.

The number of ways to replace the -1s with positive integers in the range 1 to m is:

(m^7) mod (10^9) = (m^7)

However, since it is impossible to create a wave with this array, the final answer is 0.

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Answer:

Go to Betty's Breakables, if the price is below $37.50.

The advice that I will give my friend in the purchase of crystal candlestick is to Go to Betty's Breakables if the price is above $25.00.

A factor is a number that completely divides another number. To put it another way, if adding two whole numbers results in a product, then the numbers we are adding are factors of the product because the product is divisible by them. Factors can be found using either division or multiplication.

Given:

Betty's Breakables is offering a 40% discount whereas Annie Attic is offering a $10 discount.

The discount at Betty's Breakables

=  $10 ($25 x 40%) when the price is, let's say, $25.00.

As a result, the cost drops to $15. This is true even if my friend uses his $10 discount at Annie Attic.

However, if the price is higher—say let's $30—more gain is realized.

Betty's Breakables is offering a $12 discount at this price. The savings at Annie Attic will still be $10.

Thus, if the candlestick costs more than $25, it will be less expensive for my friend to visit Betty's Breakable.

On the other hand, if the cost is less than $25, Annie Attic will provide a better deal.

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Answer:

Step-by-step explanation:

Let function p(x) be the price that is reduced by 15% if the bill is x dollars.

Since the price is not payed in full 100% is reduced by 15% we only pay

100 - 15 = 85 % of the original price.

p(x) = x· (100% - 15 %)  = x· 85% = 0.85 x

The function used to calculate any bill that is reduced by 15% is:

p(x) = 0.85x

x - is the bill before being reduced by the coupon

Answer:

B

Step-by-step explanation:

sum of any number with zero gives the same number

Answer:    I think it's A. But I'm not entirely sure,

Step-by-step explanation:

Answer:

its y=2x + 5

explanation:

I took the test and got it right

Answer:

8

Step-by-step explanation:

If I am doing this correctly you count all the dots the triangles lines are on. Which is 8 to find the area. Hope it helped have a wonderful day!

Answer:

D)

A=23.5 in^2

Step-by-step explanation:

d*\(\pi\)*m*/360

A=16*\(\pi\)*168/360

A=23.5 in^2

Answer:

(a) is a line an appropriate model :)

Step-by-step explanation: