Please answer this correctly

Answer:

x = 2.2

Step-by-step explanation:

-0.45x + 0.33 = -0.66

Subtract .33 from each side

-0.45x + 0.33-.33 = -0.66-.33

-.45x = -.99

Divide each side by -.45

-.45x./-.45 = -.99/-.45

x = 11/5

x = 2.2

Answer:

the 3rd one is yes the rest are no

Step-by-step explanation:

Answer:

the first and fourth are correct, the second and third are not correct

Step-by-step explanation:

if you plug in the numbers as x and y, then you need to see if they add up to thirteen. So you would multiply the first number in each perenthesis by two and the second by nine, and then if when you add the two of them together, it is equal to the number after the equal sign (13, in this case), you would answer yes, but if it's not, you would answer no.

Hey there! :)

Answer:

x = 5/2 and 3.

Step-by-step explanation:

Factor the equation. Find numbers that will sum up to -11 involving the coefficient of 2, and that multiply into 15.

2x² - 11x + 15 = 0

(2x - 5)(x - 3) = 0

Use the Zero Product Property to solve for the roots of this equation:

2x - 5 = 0

2x = 5

x = 5/2

----------

x - 3 = 0

x = 3.

Therefore, the two values of x that are roots of this equation are:

x = 5/2 and 3.

━━━━━━━☆☆━━━━━━━

▹ Answer

x₁ = 5/2

x₂ = 3

▹ Step-by-Step Explanation

2x² - 11x + 15 = 0

2x² - 5x - 6x + 15 = 0

x(2x - 5) - 6x + 15 = 0

x(2x - 5) - 3(2x - 5) = 0

(2x - 5) * (x - 3) = 0

2x - 5 = 0

x - 3 = 0

x₁ = 5/2

x - 3 = 0 → x₂ = 3

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

Answer:

a) P(G | M) = 0.577

b) P(W | G) = 0.523

c) P(M and G') = 0.220

d) P(M or G) = 0.870

e) P(G') = 0.350

Step-by-step explanation:

A random sample of adult drivers was obtained where 52% were men and 46% were women.

P(M) = 0.52

P(W) = 0.46

A survey showed that 65% of the drivers rely on GPS systems.

P(G) = 0.65

30% of the drivers are men and use GPS while 34% of the drivers are women and use GPS.

P(M and G) = 0.30

P(W and G) = 0.34

a) Suppose the person selected is a man. What is the probability that he relies on a GPS system? Your answer should have at least 3 decimal places

P(G | M) = ?

Recall that conditional probability is given by

∵ P(B | A) = P(A and B)/P(A)

For the given case,

P(G | M) = P(M and G)/P(M)

P(G | M) = 0.30/0.52

P(G | M) = 0.577

b) Suppose the person selected relies on a GPS system. What is the probability that the person is a woman? Your answer should have at least 3 decimal places.

P(W | G) = ?

Recall that conditional probability is given by

∵ P(B | A) = P(A and B)/P(A)

For the given case,

P(W | G) = P(W and G)/P(G)

P(W | G) = 0.34/0.65

P(W | G) = 0.523

c) What is the probability that the person is a man and does not rely on a GPS system? Your answer should have at least 3 decimal places.

P(M and G') = ?

Where G' means does not rely on a GPS system

P(M and G') = P(M) - P(M and G)

P(M and G') = 0.52 - 0.30

P(M and G') = 0.220

d) What is the probability that an individual is a man or uses a GPS system? Your answer should have at least 3 decimal places.

P(M or G) = ?

Using the addition rule of probability,

∵ P(A or B) = P(A) + P(B) - P(A and B)

For the given case,

P(M or G) = P(M) + P(G) - P(M and G)

P(M or G) = 0.52 + 0.65 - 0.30

P(M or G) = 0.870

e) What is the probability that an individual does not use a GPS system? Your answer should have at least 3 decimal places.

P(G') = ?

P(G') = 1 - P(G)

P(G') = 1 - 0.65

P(G') = 0.350

Answer:

Step-by-step explanation:

Factors of 12

2, 3 , 6 , 4, 1, 12

Answer:

The first step in simplifying this expression is to evaluate the terms within the parenthesis - starting with the multiplication and following the rules for operations in math.

Answer:

Expanding brackets

Step-by-step explanation:

4(3x)+4(-2)+6x(2)+6x(-1)

12x - 8 + 12x - 6x

Answer:

this equation has no solution

Step-by-step explanation:

Answer:

Total ways = ¹²C₄ × ⁸C₄

Total ways = 495 × 70

Total ways = 34,650

Therefore, there are 34,650 ways to select a team of 4 men and 4 women from 12 male and 8 female sale representatives.

Step-by-step explanation:

From the given information,

There are 12 male sales representatives

There are 8 female sales representatives

We want to select a team of 4 men and 4 women

Requried:

In how many ways can the team of 6 representatives be selected?

There must be a typing error since it is given in the question that 4 men and 4 women are to be selected.

4 + 4 = 8

So the correct question is

In how many ways can the team of 8 representatives be selected?

A team of 4 men from 12 men may be selected as

Men = ¹²C₄ = 495 ways

A team of 4 women from 8 women may be selected as

Women = ⁸C₄ = 70 ways

So the team of 8 representatives may be selected as

Total ways = ¹²C₄ × ⁸C₄

Total ways = 495 × 70

Total ways = 34,650

Therefore, there are 34,650 ways to select a team of 4 men and 4 women from 12 male and 8 female sale representatives.

Answer:

12

Step-by-step explanation:

The way to find the slope side of a traingle is

A^2+B^2=C^2  Next you substitute

5^2+B^2=13^2  Next simplify

25+B^2=169  Next use the subtraction property of equality

B^2=144  Next find the square root

B=12

Hope this helps :)

Answer:

height =12

Step-by-step explanation:

use Pythagorean theorem for right angle triangle:

a²+b²=c²

a²=c²-b²

a²=13²-5²

a²=144

a=√144-=12

Answer:

x = 2

Step-by-step explanation:

(2^x - 2)(5 * 2^x + 10) = 3 * 4^x + 12

5 * 2^(2x) + 10 * 2^x - 2 * 5 * 2^x - 20 = 3 * (2^2)^x + 12

2^x[5 * 2^(x)] - 20 = 3 * 2^(2x) + 12

2^x[5 * 2^(x)] = 3 * 2^(2x) + 32

5 * 2^(2x) - 3 * 2^(2x) = 32

2 * 2^(2x) = 32

2^(2x) = 16

2^(2x) = 2^4

2x = 4

x = 2

Answer:

1 to 5

Step-by-step explanation:

Others are saying 5 to 1

Answer:5/6

Step-by-step explanation:

Answer:

Option 4

Step-by-step explanation:

The central angles are "Angles in the center"

So,

Central Angles are <AOB, <BOC and <AOC

Answer:

<AOB, <BOC and < AOC

Step-by-step explanation:

There are 3 angles at center O . The largest is <AOC ( = 180 degrees). Thn you have 2 more each equal to 90 degrees.

Answer:

is it ok ...or anything else..

Answer:

Stella

Step-by-step explanation:

I guessed and got it right

Answer:

36⁷- 26⁷ = 70332353920 passwords.

Step-by-step explanation:

Number of digits 0-9 = 10

Number of lowercase letters a-z = 26

We have to find different passwords of length 7 that contain only digits and lower-case letters.

Total number of characters = 26 lowercase letters + 10 digits

                                              = 36

The total number of length 7 passwords without restrictions = 36⁷

                                                                                                    = 78364164096

The number of length 7 passwords with no digits (only lowercase letters)

   =  26⁷

   = 8031810176

Now the restriction here is that the password must contain at least 1 digit. This can be computed by subtracting the number of length 7 passwords with no digits from total number of length 7 passwords.

Number of length 7 passwords with restriction (at least one digit) = 36⁷- 26⁷

       = 36⁷- 26⁷

       = 78364164096 - 8031810176

       = 70332353920

So the number of different passwords that contain only digits and lower-case letters and satisfy the given restrictions that length is 7 and the password must contain at least one digit = 70332353920

Answer:

A = 20,000

Step-by-step explanation:

200,000 ÷ 10 = 20,000

The loan amount going to be for a home that cost  $200000 home. You plan to pay 10% as a down payment and take out a 30-year loan for the rest is $180000.

When the loan is given to you, then some amount is charged to you for the principal amount and that is called interest.

Given:

The cost of the house, C = $200000,

The time = 30 years,

If the down payment is 10% then the remaining amount,

Down payment  amount, D = 10% of 2000000 = $20000

Remaining amount = C - D

Remaining amount = $200000 -  $20000 = $180000,

Therefore, the loan amount is $180000.

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Answer:

1/81.

Step-by-step explanation:

3^-4 = 1 /3^4

= 1/81.

Answer:

(f - g) = 2x - 3

Step-by-step explanation:

Simply distribute the negative and add like terms together:

(f - g) = 3x - 1 - (x + 2)

(f - g) = 3x - 1 - x - 2

(f - g) = 2x -  3

Answer:

The graph of inequality is shown below.

Step-by-step explanation:

The given inequality is  

[tex]3y-x\geq 9[/tex]

Related equation is

[tex]3y-x=9[/tex]

At x=0,

[tex]3y-0=9\Rightarrow y=3[/tex]

At y=0,

[tex]3(0)-x=9\Rightarrow x=-9[/tex]

Plot (0,3) and (-9,0) on coordinate plane and connect them by a straight line.

Check the inequality for (0,0).

[tex]3(0)-(0)\geq 9[/tex]

[tex]0\geq 9[/tex]

This statement is false. So, (0,0) is not included in the shaded region.

The graph of inequality is shown below.

Answer: 10 squares.

Step-by-step explanation:

We can do it with integrals.

If we take the bottom vertex as the point (0,0), the top right vertex as the point (0,4) and the left vertex as the point (5, 6)

then the area of the triangle is the area enclosed by two lines between the values x = 0 and x = 5.

the two lines are:

the bottom is the one that passes through (0,0) and (5,6)

f(x) = y = s*x (because it passes through the point (0,0))

and the slope is s = 6/5.

so f(x) =  y = (6/5)*x.

The top line is the one that passes through (0,4) and (5,6)

the y-intercept is b = 4, and the slope is:

s = (6 - 4)/(5 - 0) = 2/5.

g(x) = y = (2/5)*x + 4.

Now, the area enclosed for the triangle is equal to:

[tex]\int\limits^5_0 {g(x) - f(x)} \, dx[/tex]

this is equal to:

[tex]\int\limits^5_0 {(2/5)x + 4 - (6/5)x} \, dx = \int\limits^5_0 {-(4/5)*x + 4} \, dx[/tex]

= (1/2)(-4/5)*(5)^2 + 4*5 - 0 = 10

The area is 10 squares

Answer:

The probability that the sample mean will be within 0.5 of the population mean is 0.3328.

Step-by-step explanation:

It is provided that a random variable X has mean, μ = 50 and standard deviation, σ = 7.

A  random sample of size, n = 36 is selected.

According to the Central Limit Theorem if we have a population with mean μ and standard deviation σ and we take appropriately huge random samples (n ≥ 30) from the population with replacement, then the distribution of the sample mean will be approximately normally distributed.

Then, the mean of the distribution of sample mean is given by,

[tex]\mu_{\bar x}=\mu=50[/tex]

And the standard deviation of the distribution of sample mean is given by,

[tex]\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}=\frac{7}{\sqrt{36}}=1.167[/tex]

So, the distribution of the sample mean of X is N (50, 1.167²).

Compute the probability that the sample mean will be within 0.5 of the population mean as follows:

[tex]P(|\bar X-\mu_{\bar x}|\leq 0.50)=P(-0.50<(\bar X-\mu_{\bar x})<0.50)[/tex]

                               [tex]=P(\frac{-0.50}{1167}<\frac{\bar X-\mu_{\bar x}}{\sigma_{\bar x}}<\frac{0.50}{1.167})\\\\=P(-0.43<Z<0.43)\\\\=P(Z<0.43)-P(Z<-0.43)\\\\=0.66640-0.33360\\\\=0.3328[/tex]

Thus, the probability that the sample mean will be within 0.5 of the population mean is 0.3328.

Answer:

Step-by-step explanation:

Given the Total revenue R(x) = 2x

Cost C(x) = 0.01x²+0.3x+30 where;

x = 30 and dx/dt = 9units per day.

Rate of change of revenue dR/dt = dR/dx • dx/dt

dR/dt = 2dx/dt

dR/dt = 2(9) = $18

Rate of change of revenue with respect to time is 18dollars/day.

Rate of change of cost dC/dt = dC/dx • dx/dt

dC/dt = (0.02x+0.3)dx/dt

dC/dt at x = 30 and dx/dt = 9 will give;

dC/dt = {0.02(30)+0.3}×9

dC/dt = (0.6+0.3) × 9

dC/dt = 0.9×9

dC/dt = $8.1

Rate of change of cost with respect to time is 8.1dollars/day

Profit = Revenue - Cost

Profit = 18-8.1

Daily Profit = $9.9

Answer:

2699

Step-by-step explanation:

you do all the multiplication first

500×6= 3000

5 ×50 = 250

so it becomes

3000-51-250 = 2699

Answer:

2699

Step-by-step explanation:

Answer:

We can express the equation for any linear equation with slope -2 and point (x0,y0) as:

[tex]y=-2x+(y_0+2x_0)\\\\y-y_0=-2(x-x_0)[/tex]

Step-by-step explanation:

Incomplete question:

There is no point to complete the equation.

As we have no point to complete the linear equation, we will solve for any given point (x0,y0) and a slope of m=-2.

The linear equation can be written generically as:

[tex]y(x)=mx+b\\\\y(x)=-2x+b[/tex]

If a point, like (x0,y0) belongs to the linear equation, it satisfies its equation. Then:

[tex]y_0=-2x_0+b[/tex]

Then, we can calculate b as:

[tex]y_0=-2x_0+b\\\\b=y_0+2x_0[/tex]

We can express the equation for any linear equation with slope -2 and point (x0,y0) as:

[tex]y=-2x+(y_0+2x_0)\\\\y-y_0=-2(x-x_0)[/tex]

Hope this helps! The answer is correct as I also took the quiz.

Think about this. If we were to align the coefficients with their solutions to form this matrix, it would be the following -

[tex]\begin{bmatrix}2&-6&-2&|&1\\ 0&3&-2&|&-5\\ 0&2&2&|&-3\end{bmatrix}[/tex]

Now this is one way to assign the coefficients. As you can see, 2, - 6, - 2 are present as the coefficients for the first row. Similarly 0, 3, - 2 are present as the coefficients for the second row - ( as one term is missing from this row, it is replaced with a " 0 " ). The same applies for the third row. The end values of the system of equation is present as the last column.

The options are assigned in a manner with which the coefficients and variables are present in two columns, while the end values of the system of equation given, is present as the last column. Knowing the arrangement of both the coefficients and the end values of the system of equation, all we have to do is add these " variables " as one column -

Solution = Option B

Answer:

101

Step-by-step explanation:

We are given that

r(t)=[tex]<t^2,1-t,4t>[/tex]

We have to find the derivative of r(t).a(t) at t=2

a(2)=<7,-3,7> and a'(2)=<3,2,4>

We know that

[tex]\frac{d(uv)}{dx}=u'v+v'u[/tex]

Using the formula

[tex]\frac{d(r(t)\cdot at(t))}{dt}=r'(t)\cdot a(t)+r(t)\cdot a'(t)[/tex]

[tex]\frac{d(r(t)\cdot at(t))}{dt}=<2t,-1,4>\cdot a(t)+<t^2,1-t,4t>\cdot a'(t)[/tex]

Substitute t=2

[tex]\frac{d(r(t)\cdot at(t))}{dt}_|t=2=<4,-1,4>\cdot a(2)+<4,-1,8>\cdot a'(2)[/tex]

[tex]\frac{d(r(t)\cdot at(t))}{dt}_|t=2=<4,-1,4>\cdot <7,-3,7>+<4,-1,8>\cdot <3,2,4>[/tex]

[tex]\frac{d(r(t)\cdot at(t))}{dt}_|t=2=28+3+28+12-2+32=101[/tex]

The derivation of the equation will be "101".

Given expression is:

r(t) = 〈t², 1 - t, 4t〉

Let,

a(2) = <7, -3, 7>

a'(2) = <3, 2, 4>

As we know,

→ [tex]\frac{d(uv)}{dx}[/tex] = u'v + v'u

By using the formula, the derivation will be:

→ [tex]\frac{d(r(t).at(t))}{dt}[/tex] = r'(t).a(t) + r(t).a'(t)

                  = <2t, -1, 4>.a(t) + <t², 1 - t, 4t>.a'(t)

By substituting "t = 2", we get

                  =  <4, -1, 4>.a(2) + <4, -1, 8>. a'(2)

                  = <4, -1, 4>.<7, -3, 7> + <4, -1, 8>.<3, 2, 4>

                  = 28 + 3 + 28 + 12 - 2 + 32

                  = 101

Thus the response above is appropriate.

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Answer:

A) NO and NM

Step-by-step explanation:

Answer:

No, not necessarily

Step-by-step explanation:

If g(a) = 0, it is not necessarily that F(x) will have a vertical asymptote at x = ​a

For instance, assume the following conditions:

[tex]F(x) = \frac{f(x)}{g(x)}\\f(x) = x^3*(x-a)\\g(x) = x-a[/tex]

In this conditions, g(a) = 0. F(a), however, can be written as:

[tex]F(x) = \frac{x^3*(x-a)}{x-a}\\F(a) = a^3[/tex]

In this particular case, F(x = a) does not show a vertical asymptote.

Answer:

Try useing a ruler

Step-by-step explanation: