???? Help asap pls. ……

Answer:

6 m

Step-by-step explanation:

First I want you to understand that distance = speed × time.Consider:

speed= 250. 300.

minutes= let it be x. x-1

distance= 250× x. 300(x-1)

=250x. 300x-300

Since distance remains the same ,250x=300x-300

hence. -50x=-300.

x= 6

The length of the race was 1500 meters.

What is Speed?

Speed is defined as the rate of change of distance travelled per unit time.

Given is an athlete who ran at a speed of 250 m/min. However, on the day of the race, he increased his average speed to 300 m/min and finished the race one minute faster than he had during training.

Assume that the length of the race is (x) meters. Suppose that the runner takes (t) minutes to to complete the race in training. Therefore, we can write -

x = 250t

During the race -

x = 300(t - 1)

Equating both, we get -

250t = 300(t - 1)

250t = 300t - 300

300 = 50t

t = 6 min

Then, the length of the race will be -  

x = 250 x 6 = 1500 meters

Therefore, the length of the race was 1500 meters.

To solve more questions on Kinematics, visit the link below-

brainly.com/question/28815614

Algebric equations which has the same solution as 4 - 2(x - 5) = (x - 19)/4 are all equations which has a solution of 55/9.

The equation given is,

4 - (2x-5) = (x - 19)/4

16 - 4(2x - 5) = (x - 19)

16 - 8x + 20 = x - 19

All terms having a variable x is taken to one side and the numerical values are kept on the other side.

16 + 20 + 19 = x + 8x

9x = 55

x = 55/9

Therefore, equation which has the same solution as 4 - 2(x - 5) = (x - 19)/4 are all equations which has a solution of 55/9.

To learn more about algebric equation refer here

https://brainly.com/question/723406

#SPJ1

Answer:

$7.95 per visit

Step-by-step explanation:

To find the unit rate, divide dollars by number of visits.

79.5 ÷ 10 = 7.95

The factorization of the trinomial -x² - 2x + 48 gives the expression -1(x + 8)(x - 6)

An equation is an expression that shows the relationship between two or more numbers and variables.

Equations are classified based on degree (value of highest exponents) as linear, quadratic, cubic and so on. Variables can be dependent or independent. Dependent variables depend on other variable while an independent variable do not depend.

Given the polynomial:

-x² - 2x + 48

Factorizing:

-1(x² + 2x - 48)

= -1[x² + 8x - 6x - 48]

= -1[x(x + 8) -6(x + 8)]

= -1(x + 8)(x - 6)

Find out more on equation at: https://brainly.com/question/2972832

#SPJ1

Answer:

It takes the kangaroo 7.5 minutes to travel 5 kilometers.

Step-by-step explanation:

It takes the kangaroo 7.5 minutes to travel 5 kilometers.

First step is to formulate

3×5/2

Second step is to determine the time by calculating the product or quotient

Time=3×5/2

Time=15/2

Time=7.5 minutes

Inconclusion how long it takes the kangaroo to travel 5 kilometers is 7.5 minutes.

The perimeter is 70[tex]cm^{2}[/tex]. and x is 7

The complete circumference of a shape is referred to as its perimeter. It is the length of any geometric shape with a two-dimensional boundary or outline. Depending on their proportions, multiple figures can have equal perimeters. Think of a triangle built of an L-length wire as an example. If the length of each side is the same, the same wire can be used to create a square. Look at the illustration below, which shows the bounds of a rectangular park.

Given that :The perimeter is 70[tex]cm^{2}[/tex]. The sides are 3x-1, 3x, 4x+ 1.

3x -1 + 3x + 4x + 1 = 70

10x = 70

x = 7

To learn more about perimeter visit :

brainly.com/question/6465134

#SPJ9

Answer:

[tex]y - ( - 9)) = \frac{1}{5} (x - ( - 1))[/tex]

[tex]y + 9 = \frac{1}{5} (x + 1)[/tex]

to get the slope of any straight line, we simply need two points off of it, let's use the ones from the picture below.

[tex](\stackrel{x_1}{-3}~,~\stackrel{y_1}{-4})\qquad (\stackrel{x_2}{0}~,~\stackrel{y_2}{4}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{4}-\stackrel{y1}{(-4)}}}{\underset{run} {\underset{x_2}{0}-\underset{x_1}{(-3)}}} \implies \cfrac{4 +4}{0 +3}\implies {\Large \begin{array}{llll} \cfrac{8}{3} \end{array}}[/tex]

An additional strategy for splitting polynomials is synthetic division. If you are dividing by a polynomial of degree 1, it is a shortcut for long division that only functions in that situation.

The divisor often takes the shape of (x a). Contrary to long division, you are solely concerned with the polynomials' coefficients in synthetic division.

Another method for dividing a polynomial by the binomial x - c, where c is a constant, is synthetic division.

Setting up the synthetic division is the first step.

Bring the leading coefficient down to the bottom row in step two.

Step 3: Divide c by the amount that was just entered in the bottom row.

Add the column you made in step 3 in step 4.

To learn more about synthetic division from given link

https://brainly.com/question/24662212

#SPJ9

As the sample size becomes larger, the sampling distribution of the sample means approaches a sampling distribution.

Therefore, as the sample size becomes larger, the sampling distribution of the sample means approaches a sampling distribution.

To learn more about sampling distribution refer to:

brainly.com/question/12892403

#SPJ4

From the given dot plot, it is found that:

1. Farm 1 has mean of 8 inches and standard deviation of 1.15 inches, while Farm 2 has a mean of 8 inches but a standard deviation of 2.31 inches.

2. The lower standard deviation tells that the heights of the trees in Farm 1 are more uniform than in Farm 2.

A dot plot shows the number of times that each observation appears in a data-set.

Hence, at farm 1, the measures are given as follows:

6, 7, 7, 8, 8, 8, 9, 9, 10.

The mean is given by:

M = (6 + 2 x 7 + 3 x 8 + 2 x 9 + 10)/9 = 8 inches.

The standard deviation is given by:

S = sqrt[((6-8)² + 2 x (7-8)² + 3 x (8-8)² + 2 x (9-8)² + (10-8)²)/9] = 1.15 inches.

For Farm 2, the measures are given as follows:

4, 6, 6, 8, 8, 8, 10, 10, 12.

Hence the mean and the standard deviation are given, respectively, by:

Farm 1 trees' heights have a lower standard deviation than Farm 2 trees' heights, hence they have more uniform trees.

The problem is missing and is given by the image at the end of the answer.

More can be learned about the mean and the standard deviation of a data-set at https://brainly.com/question/24628525

#SPJ1

the question does not have a solution.

a) graphing - the parabola never crosses the x-axis. When y = 0, what does x equal? none.

b) cannot factor/properly solve for zeros.

Answer:   M = -8/3

Step-by-step explanation:

The expression represents a polynomial with  two terms. The constant term is 1 ; leading terms is 7X^4 and leading coefficient is 7

Algebraic expressions that are made up of variables and coefficients are called Polynomials. Variables may be called indeterminates. Arithmetic operations such as addition, subtraction, multiplication can be performed for polynomial expressions but not division. As can be noticed, Polynomial is made up of two terms that are  Poly meaning “many” and nominal meaning “terms.”.

Term with the highest degree is the leading term of a polynomial therefore 7X^4

Coefficient of the leading term is the leading coefficient of a polynomial therefore 7

The expression has only two terms separated by "+" therefore two terms.

To know more about polynomial, refer

https://brainly.com/question/2833285

#SPJ13

Using proportions, it is found that:

a. The scale of the model is of 9:900.

b. The scale factor used was of 100.

A proportion is a fraction of a total amount, and equations can be built to find the desired measures in the context of a situation using operations such as multiplication and division to find the unit rates.

The concept of proportion is followed in scale problems, as scale is the proportion of the drawn distance by the actual distance, as follows:

Scale = Drawn distance : Actual distance.

For the building, in this problem, we have that:

Applying it's formula, the scale is given by:

9 : 900

The ratio between the actual height and the drawn height is the scale factor, hence:

Scale factor = 900/9 = 100.

A similar problem, also about proportions, is given at https://brainly.com/question/24372153

#SPJ1

Answer:

9

Step-by-step explanation:

2x3=6 (2+2+2=6)

3x3=9 (3+3+3=9)

Answer:

ans is 9 bro

Step-by-step explanation:

Seasonality is a data pattern that repeats itself after a period of weeks, days, months, or quarters.

The progressive upward or downward movement of the data over time is referred to as a trend. Trend movement may be explained by shifts in income, population, age distribution, or cultural perspectives.

Data patterns called cycles appear every few years. They play a significant role in short-term company analysis and planning and are typically linked to the business cycle. Because they might be influenced by worldwide unrest or political events, business cycles are challenging to predict.

Data "blips" are caused by chance and uncommon circumstances and are known as random fluctuations. They exhibit no clear pattern, making prediction impossible.

Seasonality is a recurring trend in data that occurs every few days, weeks, months, or quarters. Six typical seasonality patterns exist.

Hence, the correct option is (d) seasonality.

Learn more about data pattern here:

https://brainly.com/question/18892466

#SPJ1

The values of x that will make this expression equal to 0 are -1 and 9

Given the expression;

(x-9)(x+1)

Let's take the following steps to determine the values

First, expand the bracket, we get;

x² + x - 9x - 9

x² + x - 9x - 9

equate the expression to zero, we have;

x² + x - 9x - 9 = 0

add or subtract the like terms, we get;

x² - 8x - 9 = 0

Factorize the values

x² - 9x + x - 9 = 0

Factor out the common terms in the equation, we get;

x(x - 9) + 1(x - 9) = 0

The equation are;

x + 1 = 0 and x - 9 = 0

Then,

x + 1 = 0

x = -1

x - 9 = 0

x = 9

Thus, the values are - 1 and 9

Learn more about quadratic equations here:

https://brainly.com/question/1214333

#SPJ1

Using the definition of a midpoint and collinear points, the proof that shows that B is the midpoint of AC is explained below.

If three points are on a straight line, they are defined as being collinear points. That is, three points, A, B, and C are collinear points if they are on a straight line, and B is in the middle of points A and b.

When a segment is divided into two equal halves, the point that lies in the middle of the segment where the segment is cut into halves is called the midpoint of the line segment.

The proof that shows that B is the midpoint of line segment AC is shown below:

Statements                                  Reasons                                        

a. A, B, and C are collinear        a. Given

AB = BD, BD = BC                        

b. AB = BC                                   b. Substitution

c. AB ≅ BC                                   c. Definition of congruency

d. B is the midpoint                    d. AB ≅ BC

Thus, the proof above explains how point B is the midpoint of line segment AC in the image given.

Learn more about midpoint on:

https://brainly.com/question/18315903

#SPJ1

f(x) = x^2

write new equation after translation using vertex form;

(x+4)^2 - 2

simplify; convert to standard form

(x+4)(x+4) - 2

x^2 + 8x - 2

The function after translation is g(x) = x²+ 8x - 2.

A point, line, or geometric figure can be transformed in one of four ways, each of which affects the shape and/or location of the object. Pre-Image refers to the object's initial shape, and Image, after transformation, refers to the object's ultimate shape and location.

Given:

f(x) = x²

Now, g is a translation left 4 units and down 2 units of the graph of f.

So, g(x)= (x+4)² - 2

Then, in the standard form

g(x) = (x+4)(x+4) - 2

g(x) = x²+ 8x - 2

Hence, the function is g(x) = x²+ 8x - 2.

Learn more about Transformation here:

https://brainly.com/question/11709244

#SPJ2

Answer: 1: 6√6 = 36

hope this helps, good luck!

The value of the product -8/9 . 5/6 is -20/27. Option C

A fraction can simply be defined as the part of a whole set or element.

The several types of fractions are listed as;

Examples of proper fractions: 3/4, 5/6

Examples of improper fractions: 4/3 , 8/7

Examples of mixed fractions:  2 1/2 , 3 4/5

Examples of simple fractions: 1/2 , 1/3

Given the expression:

-8/9 . 5/6

To determine the product of the fractions, we need to follow the steps

Multiply the numerators

-40/ 9 × 6

Now, multiply the denominators

-40/57

Reduce to simplest forms by using the divisor 2, we have;

-20/ 27

Hence, the value is -20/27

Learn more about fractions here:

https://brainly.com/question/1622425

#SPJ1

Since TV and WY are parallel lines, the angles which are adjacent angles include the following: C. <VUX and <WXZ.

Parallel lines can be defined as two (2) lines that are always the same (equal) distance apart and never meet.

The vertical angles theorem is also referred to as vertically opposite angles theorem and it states that two (2) opposite vertical angles that are formed whenever two (2) lines intersect each other are always congruent, which simply means being equal to each other.

In Geometry, when two (2) parallel lines are cut by a transversal, the vertical angle and its adjacent angle that are formed are supplementary angles, which makes:

<VUX and <WXZ.

Read more on vertical angles theorem here: brainly.com/question/17876852

#SPJ1

Complete Question:

TV and WY are parallel lines. Which angles are adjacent angles?

<VUX and <TUX.

<VUX and <VUX.

<VUX and <WXZ.

<VUX and <YXZ.

If the lengths of a certain species of crocodiles are normally distributed with a mean of 12.5 ft and a standard deviation of 2.1 ft. the probability that a randomly selected crocodile is more than 12 feet long is  0.5941.

Given :

Mean = 12.5 ft

Standard deviation = 2 .1 ft

Randomly selected crocodile = 12 ft

Hence,

First find Z value, Z = (12 – 12.5) / 2.1

Z =  - 0.5 / 2. 1

Z = - 0.238

Using Z table, we will get the probability :

Probability =  1 – 0.4059

Probability = 0.5941

Therefore we can conclude that the probability is 0.5941.

Learn more about probability here: https://brainly.com/question/24756209

#SPJ1

$ 807.76    is the balance after 3 years by compound interest.

What is compound interest with example?

Given

Principal , P = $675

Rate , r = 6% = 0.06

Time = t years

n = 12             (compounded monthly)

(a)

Balance after t years is given as,

A = P(1 + r/n)nt

A = 675(1 + 0.06/12)12t

A = 675(1.005)12t

Balance after t years =  675(1.005)12t              

(b)

Balance after 3 years =  675(1.005)12*3

= 675(1.005)36

= 675*1.19668

=807.7593 \approx 807.76

Balance after 3 years = $ 807.76          

Learn more about compound interest

brainly.com/question/14295570

#SPJ13

Answer:

Option 1, 4

Step-by-step explanation:

[tex]\frac{108}{8}=\frac{27}{4}=6.75 \\ \\ 169<170<196 \implies 13<\sqrt{170}<14 \\ \\ \therefore \frac{108}{8}<\sqrt{170}[/tex]

The expression representing height of kite from ground is Height = sin 50° × 40.

The kite, person holding the string and ground from where height is to be measured will form right angled triangle. We can use the sine function to find the height of kite from the ground. Writing the trigonometric relation -

sin theta = perpendicular ÷ hypotenuse

Keep the values in mentioned trigonometric relation to find the expression -

sin 50 = height ÷ 40

Height = sin 50° × 40

Finding the height using formed equation -

Height = 0.77 × 40

Performing multiplication

Height = 30.64 meters

Therefore, the expression to find the height of kite from ground is Height = sin 50° × 40.

Learn more about trigonometry -

https://brainly.com/question/24349828

#SPJ9

Answer: x-intercept: 5/4

y-intercept: -5/3

Step-by-step explanation:

We can find the y-intercept by looking at the y = mx + b form, the y-intercept would be b in that form:

4x = 3y + 5

y = 4/3x - 5/3

Next, we plug x into that equation:

We can graph it, or find it mathematically:

Set 4/3x = 5/3

4/3x * 3/4 = 5/3 * 3/4

x = 5/4