My answer is correct or no please check

Answer:

y=[tex]\frac{1}{2}[/tex]x+1

Step-by-step explanation:

y=mx+b

m is the slope of the line, which you find by counting the rise over run between two points. In this case its up one, and right two, or [tex]\frac{1}{2}[/tex].

b is the y intercept, or where the line crosses the y axis

The ascension can be modeled using the function:

Where d is the number of feet below the sea level at time t (in seconds), d₀ is the initial "depth", and r is the ascension rate.

From the problem, we identify:

Then:

a)

After 10 seconds, we have t = 10:

After 10 seconds, we will be 80 feet below sea level.

b)

To find how long will it take to reach the surface, we need to solve the equation d(t) = 0.

We will reach the surface after 30 seconds.

Given Data:

The table given here shows time taken in the first column and the distance travelled in the second column.

First check the ration of distance /time to verify if the speed of the man is constant or not.

As both ratios are same it means the speed of the man is constant and the distance travelled is directly proportional to the time taken and varies linealy with the time.

Now to determine the relationship between m and h we will use the same ratio of m and h which comes in the previous step.

Thus, option (D) is the required solution.

Answer:

4

Step-by-step explanation:

4

4

4

4

we have the second degree polynomial

we must find two numbers a,b such that

We can see that, a=-2 and b=-9 fulfill the above conditions. Therefore, we have

Step-by-step explanation:

there are 3 x-intercepts (the x- values when y = 0). because y is only 0, when one of the 3 factors is 0.

and that is the case for

x = -7

x = -1

x = 2

so, formally, the x- intercepts are

(-7, 0), (-1, 0), (2, 0)

the y intercept is the y- value when x = 0.

(0 + 7)(0 + 1)(0 - 2) = 7×1×-2 = -14

the y-intercept is formally

(0, -14)

Let's solve the following expressions:

a.) 7 - (5t - 13) = -25

Therefore, t = 9

b.) -15b + 21 + 5b = -19

Therefore, b = 4

Answer

Step-by-step explanation

Given the expression:

Distributing the square root over the division and evaluating the square root at the denominator:

Answer:

11.1 miles per gallon

Explanation:

Given;

Odometer reading when the jeep is filled up with gasoline = 23,529.6 miles

Odometer reading when the jeep is filled up with 10 gallons of gasoline =23,640.6 miles

We can now go ahead and determine how many miles per gallon Harry got as seen below;

So Harry got 11.1 miles per gallon

Given:

Required:

To find the value of f(-8), f(0), f(4), and f(-100)+f(100).

Explanation:

f(-8) :

Clearly -8<0,

So

f(0) :

Clearly 0=0,

f(4) :

Clearly 4>0,

f(-100)+f(100) :

-100<0

100>0

Final Answer:

Given:

5x+8y=3

The objective is to fill the table using the given values of x otr y.

Let's take that, x=0 and substitute in the given equation.

Hence, the the required solution will be (0,3/8).

Let's take that, y=0 and substitute in the given equation.

Hence, the the required solution will be (-2,0).

Let's take that, y=1 and substitute in the given equation.

Hence, the the required solution will be (-1,1).

Three times a number decreased by 1 is 10:

X is the number.

3x = three times a number.

3x - 1 = 10 (Three times a number decreased by 1 is 10)

3x = 10 + 1

3x = 11

x = 11/3

Answer:

C. 1655

Step-by-step explanation:

+10, +4, -21, +23, -8

Adding all those terms together we get 8

1647 + 8 = 1655

Given a straight line angle = 180

So, the angles (9x-100) and (40-x) are supplementary angles

So,

Solve for x:

So, the answer will be x = 30

The formula for determining the volume of a cylinder is expressed as

V = pi * r^2h

Where

V represents volume of cylinder

pi is a constant whose value is 3.142

r represents radius of cylinder

h represents height of cylinder

From the information given,

h = 10

r = 3

V = 3.142 * 3^2 * 10

V = 282.78 in^3

The closest measurement is option A

f(x) = 37x + 20

Answer:

Option D, $20 is the membership beause it is a fixed cost, it does not depend on the amount of months

The quadrilaterals, parallelogram,square, rectangle has rotational symmetry but no reflectional symmetry

A trapezoid has neither a rotational symmetry nor a reflectional symmetry

But for an isosceles with only one pair of parallel sides has a reflectional symmetry but no rotational symmetry

Thus, the correct answer is

an isosceles with only one pair of parallel sides

The given system of inequality is

At first, we must draw the lines to represent these inequalities

Let x = 0, then find y

The first point is (0, 4)

Let y = 0

The second point is (-6, 0)

We will do the same with the second line

Let x = 0

The first point is (0, -2)

Let y = 0

The second point is (-2, 0)

Since the sign of the first inequality is >, then the line will be dashed

Since the sign of the second inequality is >=, then the line will be solid

Let us substitute x, y by the origin point (0,0) in both inequalities to find the shaded part of each one

Since the inequality is true then the point (0, 0) lies on the shaded area

Since the inequality is true, then point (0, 0) lies in the shaded area

Let us draw the graph

The red line represents the first inequality

The blue line represents the second inequality

The area of two colors is the area of the solution

Point (0, 0) lies in this area, then it is a solution for the given system of inequalities

Answer::

Explanation:

Given the expression:

First, rewrite the expression using the fractional index law:

Therefore:

Use the multiplication law of exponents:

The resulting expression can be rewrittem further:

The single radical is:

The 95% confidence interval (in minutes) for the population mean is of:

(2.55, 3.83).

The bounds of the confidence interval are given according to the following rule:

[tex]\overline{x} \pm t\frac{s}{\sqrt{n}}[/tex]

In which the parameters are described as follows:

The distribution is used when the standard deviation of the population is not known, only for the sample.

In the context of this problem, the values of the parameters are given as follows:

[tex]\overline{x} = 3.19, s = 0.77, n = 8[/tex]

The critical value, using a t-distribution calculator, for a two-tailed 95% confidence interval, with 8 - 1 = 63 df, is t = 2.3646.

Then the lower bound of the confidence interval is calculated as follows:

[tex]\overline{x} - t\frac{s}{\sqrt{n}} = 3.19 - 2.3646\frac{0.77}{\sqrt{8}} = 2.55[/tex]

The upper bound is calculated as follows:

[tex]\overline{x} + t\frac{s}{\sqrt{n}} = 3.19 + 2.3646\frac{0.77}{\sqrt{8}} = 3.83[/tex]

More can be learned about the t-distribution at https://brainly.com/question/16162795

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1) Gathering the data

Part A

Tiffany's Commission: 21%

Sales Revenue: 27,000

2) In this case, we can figure out how much has she earned by doing this:

Part B)

$1,500

$ 2,025

We can solve it in 2 steps. Firstly let's find the equivalence of 2025 in percentage.

1500-------100%

2025- ----x

1500x = 202500

x=202500/1500

x =135%

Now we need to subtract from 100%. 135%-100%= 35%

So the percentage (markup) was 35%. That lawnmower was sold 35% above the price.

Part C)

$15 per hour

2% per hour (0.02)

In this, case we need a simple calculation multiplying that 15 by (1 +0.02)

15 x ( 1 +0.02)

15 x (1.02)

15.3

After the raise, Tiffany earns $15.30 per hour

y - 6 = - 5/2 (x + 4)

To write in slope-intercept form means to write in the form;

y= mx + b

where m is the slope and b is the intercept

y - 6 = - 5/2 (x + 4)

open the parenthesis

y - 6 = -5/2 x - 10

add 6 to both-side of the equation

y = - 5/2 x - 10 + 6

y = -5/2 x - 4

Next is to check whether 5y = 2x + 6 is perpendicular to the above

To do that, we have to make the equation to be in the form y=mx+ b

5y = 2x + 6

Divid through by 5

y = 2/5 x + 6/5

The slope of perpendicular equation, when multiply gives minus one (-1)

The slope of the first equation = -5/2

The slope of the second equation is 2/5

Multiplying the two slopes;

(-5/2) (2/5) = -1

Hence the lines are perpendicular

Answer:

please add rest of question?

Step-by-step explanation:

4x+10(2x) - 8x​

First, multiply to solve the parentheses:

4x+20x-8x

Add and subtract

16x

To solve further cross multiply both sides

so that

x = 160

To find the inverse of the matrix, first let's find the determinant:

Then, we'll find the Adjunct of the matrix:

THe length of each cube is inreasing by 1. This means that the increment is in arithmetic sequence.

The formula for determining the nth term of an aritmetic sequence is expressed as

Tn = a + (n - 1)d

Where

a represents the first tem of the sequence

Common difference, d represents the difference between consecutive terms

Given that a = 3, d = 1

Tn = 2 + (n - 1)1

Tn = 2 + n - 1

Tn = 1 + n

For the 18th term, n = 18

T18 = 1 + 18 = 19

The number of boxes in the square for the 19th term is

19 * 19 = 361

To find:

The area of the training field.

Solution:

The training field is made of two semicircles and a rectangle.

The length and width of the rectangle is 96 m and 64 m. So, the area of the rectangle is:

The diameter of the semicircle is 64 m. SO, the radius of the semicircle is 32 m.

The area of two semicircles is:

So, the area of the training field is:

Thus, the area of the training field is 9359.36 m^2.

Given that H is the circumcenter of the triangle.

It means, the length between each vertex point of the triangle and the point H is the radius of the circle.

Thus, the line DH=CH=BH are the radius of the circle.

It is given that DH=14.

Therefore CH=14.

Hence the value of CH is 14.

B. Hexagonal Prism

1) One prism is defined, in terms of naming it by the base.

2) Counting the edges of the base in this net surface, we can tell that this is a Hexagonal Prism for the base is a hexagon.