5 2/5 as a decimal number

Answer:

The answer is not finished but if John is buying the materials and paying for the labor then the answer will be $510.

Step-by-step explanation:

I’m sorry if I didn’t help but the answer is not written out enough…

The coordinates of X that partitions XY in the ratio 5 to 4 include the following: X (-1.6, -7).

In this scenario, line ratio would be used to determine the coordinates of the point X on the directed line segment AB that partitions the segment into a ratio of 5 to 4.

In Mathematics and Geometry, line ratio can be used to determine the coordinates of X and this is modeled by this mathematical equation:

M(x, y) = [(mx₂ + nx₁)/(m + n)],  [(my₂ + ny₁)/(m + n)]

By substituting the given parameters into the formula for line ratio, we have;

M(x, y) = [(5(2) + 4(-6))/(5 + 4)],  [(5(-11) + 4(-2))/(5 + 4)]

M(x, y) = [(10 - 24)/(9)],  [(-55 - 8)/9]

M(x, y) = [-14/9],  [(-63)/9]

M(x, y) = (-1.6, -7)

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Age will be 40 years old.

R, in beats per minute, can be approximated by the formulas, where a represents the person's age.

where R= 143 - 0.65a for women.... (1)

and R= 165 - 0.75a for men,..... (2)

So by implementing these two equation we get a = 40

If the sum of ages is X and Y, and the ratio of their ages is p:q, then the age of Y can be calculated using the formula shown below: Y's age = Y's ratio/Sum of ratios x sum of ages The age dependency ratio is the ratio of dependents (people under the age of 15 or over the age of 64) to the working-age population (people between the ages of 15 and 64). The proportion of dependents per 100 working-age population is shown in the data.

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Answer:

If two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are congruent.

Step-by-step explanation:

I hope that helped a bit ;)

Answer:

Step-by-step explanation:

object       X-axis            Y-axis             y = x               y = -x

(0,6)          (0 , -6)            (0,6)                (6 ,0)             (-6 ,0)

(-3 , 5)       (-3, -5)            (3 , 5)              (5 , -3)           (-5 , 3)

(-4 , -6)      (-4 , 6)           (4 , -6)              (-6,-4)           (6 , 4)

(8,-3)         (8 , 3)             (-8,-3)              (-3, 8)           (3 , -8)

(0,3)           (0 ,-3)           (0 ,3)                ( 3, 0)          (-3 , 0)

(0, -9)          (0 , 9)           (0 ,9)              (-9 , 0)         ( 9 , 0)

(5,0)           (5, 0)              (-5,0)             (0 , 5)           (0 , -5)  

(-2,0)           (-2,0)            (2,0)               (0, -2)         (0,2)

(-7 , 8)        (-7 , -8)          (7 , -8)             (8, -7)           (-8,7)

(12 , -6)      (12, 6)           (-12,-6)              (-6,12)          (6 ,-12)

When a point is reflected over x-axis, x-coordinate remains same and y-coordinate  change to its opposite sign.

When a point is reflected over y-axis, y-coordinate remains same and x-coordinate  change to its opposite sign.

When a point is reflected over y = x axis, x-coordinate and y-coordinate change their places.

When a point is reflected over y = -x axis, x-coordinate and y-coordinate change their places and are negated

Answer:

Hello! answer: 76

Hope that helps!

Answer:

Step-by-step explanation:

The meaning of the translation (x + 6, y + 10) is that all points in a coordinate plane are moved 6 units to the right and 10 units up.

In other words, for any point (x, y) in the original position, after the translation, the new coordinates would be (x + 6, y + 10). This means that the x-coordinate of each point is increased by 6 units, resulting in a shift to the right, and the y-coordinate is increased by 10 units, resulting in a shift upwards.

Answer: 0.129 kg

Step-by-step explanation:

A gram to a kilogram can be found by dividing the value of grams by 1000, or multiplying the value by 0.001

year's

this year´s profit is $ 472857

Explanation

we can easily solve this by using a rule of three

so

Step 1

a)let x represents this year's profit

so

if it is decreases by 2.1 %

so, this year's profit is 97.9% of the last year profit

hence

we can make a proportion

finally, solve for x,

therefore

this year´s profit is $ 472857

I hope this helps you

Answer:

A steak-out

Step-by-step explanation:

Option C i.e. the total number of green marbles and the total number of blue marbles Julia has does not describe a scenario with an explanatory and response variable.

What is explanatory and response variable?

When an explanatory variable is altered or perceived to have changed, a response variable is what changes.

We are given four scenarios.

Option A

It describes the scenario with an explanatory and response variable because the amount he will spend is dependent on what he earns.

Option B

It describes the scenario with an explanatory and response variable because the amount he has in total is dependent on what he earns.

Option C

It does not describes the scenario with an explanatory and response variable because the number of marbles are not dependent on each other.

Option D

It describes the scenario with an explanatory and response variable because the number of candies eaten is dependent on the total candies.

Hence, option C does not describe a scenario with an explanatory and response variable.

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Step-by-step explanation:

b=

help me HAHAHAHAHAHAHAHAHAHAHAHHA

Answer:

a = 6

Explantion :

hope this helps!

Answer: 45

Step-by-step explanation: I used a graphing calculator and input all the equations and all the restraints, and I found that you can’t use the first equation since x has to be less than or equal to -3, and the question calls for x to be -2. So, in the second equation, there’s a point (-2, 16) and in the third equation there’s a point (1, -3). You know you have to use these two points since in the second equation, the restraint only lets you use numbers greater than -3 or less than 0, which cannot be one, and in the third equation, the restraint only lets you use numbers greater than 0, which can’t be -2. I hope that made some sense. So then, with substitution the equation would be 3(16)+(-3) which equals 45. 3(16)=48. 48-3+=45

The factor form of the quadratic equations are listed below:

Case 13: (b - 4) · (b - 2)

Case 14: (n + 4) · (n + 2)

Case 15: 2 · (n + 9) · (n - 6)

Case 16: 5 · (n + 2)²

Case 17: 2 · (k + 5) · (k + 6)

Case 18: (a - 10) · (a + 9)

Case 19: (p + 10) · (p + 1)

Case 20: 5 · (v - 2) · (v - 4)

Case 21: 2 · (p + 2) · (p - 1)

Case 22: 4 · (v - 2) · (v + 1)

Case 23: (x - 10) · (x - 15)

Case 24: (v - 5) · (v - 2)

Case 25: (p + 6) · (p - 3)

Case 26: 6 · (v + 10) · (v + 1)

In this problem we find quadratic equations of the form a · x² + b · x + c, whose factor form is introduced below:

a · x² + b · x + c = a · x² + a · (- r₁ - r₂) · x + a · r₁ · r₂ = a · (x - r₁) · (x - r₂)

Where r₁, r₂ are real roots.

Now we proceed to present the factor form of each quadratic equation:

Case 13

b² - 6 · b + 8 = (b - 4) · (b - 2)

Case 14

n² + 6 · n + 8 = (n + 4) · (n + 2)

Case 15

2 · n² + 6 · n - 108 = 2 · (n² + 3 · n - 54) = 2 · (n + 9) · (n - 6)

Case 16

5 · n² + 10 · n + 20 = 5 · (n² + 2 · n + 4) = 5 · (n + 2)²

Case 17

2 · k² + 22 · k + 60 = 2 · (k² + 11 · k + 30) = 2 · (k + 5) · (k + 6)

Case 18

a² - a - 90 = (a - 10) · (a + 9)

Case 19

p² + 11 · p + 10 = (p + 10) · (p + 1)

Case 20

5 · v² - 30 · v + 40 = 5 · (v² - 6 · v + 8) = 5 · (v - 2) · (v - 4)

Case 21

2 · p² + 2 · p - 4 = 2 · (p² + p - 2) = 2 · (p + 2) · (p - 1)

Case 22

4 · v² - 4 · v - 8 = 4 · (v² - v - 2) = 4 · (v - 2) · (v + 1)

Case 23

x² - 15 · x + 50 = (x - 10) · (x - 15)

Case 24

v² - 7 · v + 10 = (v - 5) · (v - 2)

Case 25

p² + 3 · p - 18 = (p + 6) · (p - 3)

Case 26

6 · v² + 66 · v + 60 = 6 · (v² + 11 · v + 10) = 6 · (v + 10) · (v + 1)

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Answer:

23446

76532

12839

09192

29292

Answer:

She should have 4 I mean thats my best

Step-by-step explanation:

Answer:

o.003068mbecause may be the large number are 6,8.3the answer is 3 may be not sure

Answer:

Roughly 1.3

Step-by-step explanation:

Since we know that a quarter of the way to her basketball practice is 1/3 a mile, we just multiply 1/3 by 4 times to get our answer.

1/3 * 4 = 1.33~

The answer is 18x + 1

Answer: Let x be the width of the carpet in feet.

Then, the length of the carpet is 3 feet more than three times the width, which can be expressed as 3x + 3.

The area of a rectangle is given by the formula A = length × width. Therefore, the area of the carpet is:

A = (3x + 3) x = 3x² + 3x

We know that the area of the carpet is 216 square feet, so we can set up the equation:

3x² + 3x = 216

To solve for x, we can first divide both sides by 3:

x² + x = 72

Then, we can rearrange the equation to get it in standard quadratic form:

x² + x - 72 = 0

Now we can use the quadratic formula to solve for x:

x = (-b ± √(b² - 4ac)) / 2a

where a = 1, b = 1, and c = -72.

Plugging these values into the formula, we get:

x = (-1 ± √(1² - 4(1)(-72))) / 2(1)

x = (-1 ± √(1 + 288)) / 2

x = (-1 ± √289) / 2

x = (-1 ± 17) / 2

This gives us two possible values for x: x = -9 or x = 8.

Since the width of the carpet can't be negative, we reject the negative solution and conclude that the width of the carpet is 8 feet.

To find the length of the carpet, we can use the expression we found earlier: 3x + 3. Plugging in x = 8, we get:

length = 3(8) + 3 = 24 + 3 = 27

Therefore, the dimensions of the carpet are 8 feet by 27 feet.

Step-by-step explanation:

Answer:Scientific notation is a way of expressing real numbers that are too large or too small to be conveniently written in decimal form

Step-by-step explanation:

Answer:

102-(12•4)÷9 hope this helps

Answer:

102= 6x+b

Step-by-step explanation:

The value of f[g(x)] is - 64x³ - 336x² - 588x - 340 and the value of g[f(x)] is -4x³ + 19

The functions are as follows; f(x) = -x³ +3 and g(x) = 4x+7

The value of f[g(x)] is obtained by replacing every x in f(x) with the value of g(x) as given below

f[g(x)] = f(4x + 7) = - (4x + 7)³ + 3

When we expand (4x + 7)³, it gives us 64x³ + 336x² + 588x + 343

Then

f[g(x)] = - 64x³ - 336x² - 588x - 340

Similarly, g[f(x)] is obtained by replacing every x in g(x) with the value of f(x) as shown below;

g[f(x)] = g(-x³ + 3) = 4(-x³ + 3) + 7g

[f(x)] = -4x³ + 19

Therefore,

f[g(x)] = - 64x³ - 336x² - 588x - 340

g[f(x)] = -4x³ + 19

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a) (2.3 × \($10^4\)) × (1.5 × \($10^{-2}\)) in standard form

The number in standard form is 345

explanation:

The given two multiplication of the numbers is :

(2.3 × \($10^4\)) × (1.5 × \($10^{-2}\))

First we multiply the non exponential terms as shown below

2.3 × 1.5 = 3.45

Now we multiply the exponential terms as shown below

\($10^4\) × \($10^{-2}\) = 100

Now multiplying the exponential and non exponential term we get the number in standard form as shown below

(2.3 × \($10^4\)) × (1.5 × \($10^{-2}\))  in standard form 345

(3.6 × \(10^-5\))÷(1.8 × 10²) in standard form 0.0000002

(8 ×  10^-3) ×  (2 ×  \(10^-4\) in standard form  1.6 × \(10^-6\)

(6 × 10²)/(3 × 10-5) in standard form 20,00,0000

5.1 × \($10^-1\) in ordinary number is 0.51

(1.7 × \(10^4\)) × (8.5x ×\(0^-2\)) in standard form  1.445 × 10³.

3.45 x  100 = 345

Therefore, the number in the standard form is 345

b) (3.6 × \(10^-5\))÷(1.8 × 10²) in standard form

The number in standard form is 0.0000002

explanation:

By dividing 3.6 by 1.8 we get “2”, hence the above equation becomes,

(2 × \(10^-5\)) /\(10^2\)

We know that

\(\frac{x^{a} }{x^{b} } = x^{a-b}\)

Therefore the above equation becomes,

2 × \(10^-7\)

since the exponent of 10 is negative , therefore 7 zeros are written on the left hand side of the number = 0.0000002

Therefore, the number in the standard form is 0.0000002

c) (8 × \(10^-3\)) × (2 × \(10^-4\)) in standard form

The number in standard form is 1.6 × \(10^-6\)

explanation:

Given the product of scientific notations:

(8 ×  \(10^-3\)) ×  (2 ×  \(10^-4\))

This can be expressed as:

(8 × 2) ×  (\(10^-3\) × \(10^-4\))

= 16 ×  \(10^-3\)-4

= 16 × \(10^-7\)

= 1.6 × \(10^1\) × \(10^-7\)

= 1.6 × \(10^-6\)

Therefore, the number in the standard form is 1.6 × \(10^-6\)

d) (6 × 10²)/(3 × 10-5) in standard form

The number in standard form is 20,00,0000

e)  5.1 × 10^-1 as an ordinary number

The ordinary number is 0.51

usual form of 5.1 × \(10^1\) is

5.1 ×  1/ \(10^1\)

= 5.1/10

= 0.51

Therefore , ordinary number is 0.51

f) (1.7 × \(10^4\)) × (8.5 × \(10^-2\))  in standard form.

The number in standard form is 1.445 × 10³.

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Answer:

The basic rule is: If you need to convert from a larger unit to a smaller unit, multiply. If you need to convert from a smaller unit to a larger unit, divide. You will make the number smaller and, as you already know, division is all about making numbers smaller.

Answer:

addiemoss23/this person wrote this NOT me, it is right btw

Step-by-step explanation:

To convert units into smaller units, multiply. When the units are smaller , you need more of them to express the same measure. To convert smaller units to larger units, divide. When the units are larger , you need fewer of them to express the same measure.

Z- test statistics should be used when computing a confidence interval given only the number in a sample, the population standard deviation and the sample mean.

A z-test can be used to assess whether or not the means of two populations differ if the data has a normal distribution. For this reason, it is essential to set up the null hypothesis, and the alternative hypothesis, and determine the z-test statistic's value. The choice criterion is founded on the z critical value.

The z-test formula compares the z statistic with the z critical value to see if there is a difference between the means of the two populations. In hypothesis testing, the z critical value delineates the acceptance and rejection regions of the distribution graph. If the test statistic falls within the rejection region, the null hypothesis can be rejected; otherwise, it cannot.

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Sampling randomly is considered a statistically valid reason for choosing subjects for a study as it reduces the risk of sampling bias. The correct option is a.

Sampling bias refers to a systematic error that occurs in the process of selecting subjects for a study, leading to a sample that is not representative of the population.

By selecting subjects randomly, researchers aim to eliminate any preconceived biases or preferences that may influence the selection process. This leads to a sample that is more representative of the population, providing a more accurate representation of the population's characteristics.

Furthermore, random sampling (with a large sample) has the potential to give a perfect reflection of the population, assuming that the sample size is large enough. This is because, as the sample size increases, the sample becomes more representative of the population and tends to exhibit the same characteristics and distributions as the population.

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the standard form (ax^2 + bx + c = 0) and intercept form (a(x-x1)(x-x2) = 0) are less helpful for directly determining the hang time

The vertex form of a quadratic equation is written as y = a(x-h)^2 + k, where (h, k) represents the vertex of the parabola. In the context of hang time, the vertex form allows us to directly read the value of "h," which corresponds to the time at which the ball reaches its highest point, or the peak of its trajectory. The value of "k" represents the height of the ball at its highest point. By identifying the vertex coordinates (h, k), we can determine the time (hang time) it takes for the ball to reach the ground.

In contrast, the standard form (ax^2 + bx + c = 0) and intercept form (a(x-x1)(x-x2) = 0) are less helpful for directly determining the hang time. While they can provide information about the roots or intercepts of the quadratic equation, they do not provide immediate insights into the time the ball spends in the air.

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The straw will extend past the edge of the glass in a straight line. To find the answer, subtract the diameter of the glass (5cm) from the length of the straw (15 cm): 15 cm - 5 cm = 10 cm. This is the distance the straw will extend past the edge of the glass. To round to the nearest tenth, round 10.0 up to 10.1. Therefore, the straw will extend past the edge of the glass 10.1 cm.