Options

1. 13
2. 15
3. 16
4. 18

Answer:

so there is no answer in choice

Step-by-step explanation:

y=mx+b

so we have m,y and x so we have to find b

-2=-7×-2+b

b=-16

so y=-7x-16

the answer should be

y+2=-7(x+2)

Answer:

B) \(\$8395.80\)

Step-by-step explanation:

\(A=P(1+rt)\\A=7996(1+0.06\cdot\frac{10}{12})\\A=7996(1+0.05)\\A=7996(1.05)\\A=\$8395.80\)

This is all assuming that r=6% is an annual rate, making t=10/12 years

We can say 85 because we will spin it 85 times and it can happen we will not C

Not sure at all ....

Answer:

I think x equals 7.5

Step-by-step explanation:

Please let me know if this was correct or what you were looking for. Thanks!

The equation of the given quadratic function is y = x² -9x+18. The correct option is B. y = x² -9x+18

From the question, we are to determine which equation represent the quadratic function

From the given graph,

The roots (zeros) of the function are

x = 3 and x = 6

Now, we will determine the equation of the function from its roots

x = 3 and x = 6

Then, we can write that

x -3 = 0 OR x - 6 = 0

Thus,

(x -3)(x -6) =0

Expanding

x² -6x -3x +18 =

x² -9x+18 = 0

∴ y = x² -9x+18

Hence, the equation of the given quadratic function is y = x² -9x+18. The correct option is B. y = x² -9x+18

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Answer:

12:4

Step-by-step explanation:

im sorry if its wrong because i tried.. SORRYYY

Answer:

4.5 hours

Step-by-step explanation:

1250 / 4 = 416 2/3

1875 / 416 2/3 = 4.5

Answer:

(10x-5) - (3x+6)

7x-11

Answer:

7x−11

Step-by-step explanation:

Distribute the Negative Sign:

=10x−5+−1(3x+6)

=10x+−5+−1(3x)+(−1)(6)

=10x+−5+−3x+−6

Combine Like Terms:

=10x+−5+−3x+−6

=(10x+−3x)+(−5+−6)

=7x+−11

Answer:

(4, 3 )

Step-by-step explanation:

2x - 4y = - 4 → (1)

2x + y = 11 → (2)

subtract (2) from (1) term by term to eliminate x

(2x - 2x) + (- 4y - y) = - 4 - 11

0 - 5y = - 15

- 5y = - 15 ( divide both sides by - 5 )

y = 3

substitute y = 3 into either of the 2 equations and solve for x

substituting into (2)

2x + 3 = 11 ( subtract 3 from both sides )

2x = 8 ( divide both sides by 2 )

x = 4

solution is (4, 3 )

Answer:

942.5 cm3

Step-by-step explanation:

The Answer Is Acute

The angle hasn't reached the point of a right angle (90°), which makes it a acute angle.

Answer:

The commission rate in percentage = 16%

Step-by-step explanation:

Given

Commission Amount = $352

Sales Price  = $2200

To determine

Find the commission rate in percentage.

Using the formula

Commission percentage = Commission Amount / Sales Price

substituting Commission Amount = 352 and Sales Price  = 2200

                                          = 352 / 2200

                                          = 0.16

Multiply by 100 to get the percentage:

0.16 × 100 = 16%

Therefore, the commission rate in percentage = 16%

Answer:

your answer is 840ft

Step-by-step explanation:

Answer:

835?

Step-by-step explanation:

The correlation between variables x and y is 0.50 . The true option is option (c) .

that's the regression coefficient is positive for given bivariata.

Correlation: Correlation is a statistical measure of how linearly two variables are related (meaning they change together at a constant rate). The

sample correlation coefficient r quantifies the strength of the relationship.

Correlation Coefficient: The Correlation Coefficient formula is used to examine the strength of the relationship between data. The formula returns a value between -1 and 1.

Here:

Pearson's correlation coefficient is denoted by "r" and is

r = (n∑xy - ∑x∑y )/√( n ∑x² - (∑x )² ) ( √ n∑y² - (∑y)²)

We have given that correlation between x and y is 0.50.

cor(x,y) = √r^2 => √r^2 = 0.50 => r ^2 = (0.50)^2

=> r^2 = 0.25 > 0 but less than 0.50 ---( 1)

Regression coefficient is the constant "b" in the regression equation that gives the change in the value of the dependent variable equal to the unit change in the independent variable.

Symbolically it can be expressed as:

bₓᵧ= r σ ₓ /σ ᵧ

where x and y are correlated

σ ₓ --> standard deviation of X

σᵧ ---> standard deviation of y

We know that standard deviations is square root value of variance of observations. we also know square root any quantity is always positive or zero.

Using the above fact about standard deviations and correlation coefficient (r) is also positive we see that bₓᵧ is postive.

Hence, Regression cofficient is positive.

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Table is a way to represent the data of the two or more variable.

All the means lies between 3 and 4. Thus the option 4 is the correct option.

Table is a way to represent the data of the two or more variable.

To read the data from the table look for the value of one variable, and get the resultant value of other variable from the corresponding block.

Given information-

The population date of Nadya's survey is,

Row 1-       2,  4,  5,  4,  5

Row 2-      2,  4,  2,  4,  3

Row 3-      4,  3,  2,  4,  4

Row 4-      3,  4,  4,  3,  2

Mean of the data is the average of values. The mean is the ratio of sum of all the values to the number of values,

Row 1-       2,  4,  5,  4,  5

\(m=\dfrac{ 2+ 4+ 5+ 4+ 5}{5}\\m=\dfrac{20}{5}\\m=4\)

The mean of the row 1 is 4.

Row 2-         2,  4,  2,  4,  3

\(m=\dfrac{ 2+4+2+4+3}{5}\\m=3\)

The mean of the row 2 is 3.

Row 3-        4,  3,  2,  4,  4

\(m=\dfrac{ 4+3+2+4+4+}{5}\\m=3.4\)

The mean of the row 3 is 3.4.

Row 4-       2,  4,  5,  4,  5

\(m=\dfrac{ 3+4+4+3+2}{5}\\m=3.2\)

The mean of the row 4 is 3.2.

Hence,

All the means lies between 3 and 4. Thus the option 4 is the correct option.

Learn more about the data table here;

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Answer:

27

Step-by-step explanation:

f(x) = 5x - 8

f(7) = 5(7) - 8 = 27

Answer:

27

Step-by-step explanation:

f(x)=5x-8

Let x=7

f(7) = 5*7 -8

       =35-8

         27

Answer:

4

Step-by-step explanation:

Answer:

3.....................

Answer:

\(f^-^1(f(3.14))=3.14\)

\(f(f(-7))=5\)

Step-by-step explanation:

Hi there!

\(f^-^1(f(x))=x\)

Therefore,  \(f^-^1(f(3.14))=3.14\)

\(f(f(-7))\)

The table tells us that f(-7) is equal to -12.

\(f(-12)\)

The table also tells us that f(-12) is equal to 5.

\(5\)

I hope this helps!

-0.1

Explanation:

-3/3(a+c[b+5]-[-6+a])

-3/3(1-4[-6+5]-[-6+1])

-3/3(1-4[-1]-[-5])

-3/3(1 + 4 + 5)

-3/3(10)

-3/30

-0.1

Hope this helps!

Answer

56,000

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

1. yes, because they both have the same undefinite slopes. They are both vertical lines.

2. no, because their slopes are not negative reciprocals.

3. \(y=\frac{2}{3}x-6\)

4. \(y=\frac{3}{2}x+5\)

Step-by-step explanation:

In order to solve this problem, we can start by drawing a diagram of the paths Mia drew. (See attached picture the red lines are the original paths).

1. In order to determine if the paths are parallel or not, we need to first know what the slope of the paths is. The slope of the paths can be found by using the equation:

\(m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\)

So, for path AB we get:

\(m_{AB}=\frac{6-2}{2-2}\)

which yields:

\(m_{AB}=\frac{4}{0}\)

Now, since we have a denominator of 0 in that friction, this means that the division is not defined for the real number, therefore, we are dealing with a vertical line.

for the path CD we get:

\(m_{CD}=\frac{2-6}{8-8}\)

which yields:

\(m_{AB}=-\frac{4}{0}\)

Now, since we have a denominator of 0 in that friction, this means that the division is not defined for the real number, therefore, we are dealing with a vertical line.

Therefore, since both slopes are the same, this means that the two lines will be parallel.

2. The procedure is the same as in the previous problem:

\(m_{AC}=\frac{6-2}{8-2}\)

which yields:

\(m_{AC}=\frac{2}{3}\)

for the path BD we get:

\(m_{BD}=\frac{2-6}{8-2}\)

which yields:

\(m_{BD}=-\frac{2}{3}\)

This two fractions are just opposite in sign. But for the lines to be perpendicular, their slopes should be negative reciprocal. In this case they are not reciprocal, so the lines are not perpendicular to each other.

3. For part 3, we know that for two lines to be parallel, their slopes must be the same. We already found the slope of AC to be:

\(m_{AC}=\frac{2}{3}\)

we also know the line must go through the point (12,2), so we can use the point-slope form of the equation:

\(y-y_{1}=m(x-x_{1})\)

so we can go ahead and substitute the pertinent data:

\(y-2=\frac{2}{3}(x-12)\)

So now we can solve it for y so it gets the slope-intercept form, which is:

\(y=\frac{2}{3}x-6\)

4. In this part of the problem, we will need to follow a similar process, but this time, we need the slope to be negative reciprocal to slope of the line BD.

\(m_{BD}=-\frac{2}{3}\)

so:

\(m_{MN}=\frac{3}{2}\)

so now we can build our equation with the point-intercept form and the given point so we get:

\(y-10=\frac{3}{2}(x-10)\)

So now we can solve it for y so it gets the slope-intercept form, which is:

\(y=\frac{3}{2}x-5\)

Answer:

about 30.26

Step-by-step explanation:

tan-1 7/12 = 30.26