how do i the find the slope?
(btw i know how to do [m=change in y and x] thingy, but i just cant seems to get the right answer.)

A line segment that measures 92 millimeters in length can be drawn using scale.

Given that,

A line segment has to be drawn which has a measure of length 92 millimeters.

We know that,

10 millimeters = 1 centimeter

1 millimeter = 1/10 centimeters

92 millimeters = 92/10 = 9.2 centimeters

So it is enough to draw a line segment of length 9.2 centimeters.

In the scale, between a centimeter, there are 9 small lines which indicates the millimeters.

In between 9 and 10, there are 9 lines which indicates, 9.1, 9.2, 9.3, ....., 9.9 and after that is 10 cm.

So draw a line segment starting from 0 to 9.2.

Hence the line segment is drawn with scale.

Learn more about Line Segments here :

https://brainly.com/question/9477630

#SPJ1

From the two column proof below, we have seen ∠BAC ≅ ∠DAC by CPCTC

The two column proof to show that ∠BAC ≅ ∠DAC is as follows:

Statement 1: ΔABD is Isosceles with base BD, AC ⊥ BD

Reason 1: Given

Statement 2: AB ≅ AD

Reason 2:  Definition of isosceles Triangles

Statement 3: ∠1 and ∠2 are right angles

Reason 3: Definition of perpendicular

Statement 4: AC ≅ AC

Reason 4: Reflexive Property

Statement 5: ΔABC and ΔADC are right triangles

Reason 5: Definition of right triangle

Statement 6: ΔABC ≅ ΔADC

Reason 6: HL Congruency

Statement 7: ∠BAC ≅ ∠DAC

Reason 7: CPCTC

Read more about two column proof at; brainly.com/question/1788884

#SPJ1

The length of the arc (s), the central angle θ, and the radius (r) are related as follows:

where θ must be in radians

The central angle related to arc length in red is 360°- 144° = 216°

360° are equivalent to 2π radians, then

Substituting this value of θ and r = 4 ft, the arc length is:

The height of the building is 38.85 ft.

Given;

length of the ladder, x = 39 ft

the angle between the ground and the ladder, θ = 85°

let the height of the building be h.

Construct this triangle, the ladder forms the hypotenuse side of the right angle triangle, the height of the triangle is the opposite side of the triangle while the base of the triangle is the adjacent side of the triangle.

Apply the following trig ratio to determine the height of the triangle;

sin(θ) = opposite/hypotenuse

sin(85°) = h/39

h = 39sin(85°)

h = 38.85 ft

Therefore, the height of the building is 38.85 ft (approx.).

To learn more about ladder questions :

https://brainly.com/question/19054211

https://brainly.com/question/18884979

(a) For positive Linear Regression , Y score will be above mean .

(b) For negative Linear Regression , Y score will be below the mean .

What is Linear Regression ?

The term Linear regression analysis is used to predict the value of one  variable based on the value of another variable.

Part(a)

when the relationship of regression between two variables is positive then if one variable increase the other variable also increases ,

So , if the the x score is above the mean then the Y score will be also above the mean .

Part(b)

when the relationship of regression between two variables is negative then if one variable increase the other variable decreases ,

So , if the the x score is above the mean then the Y score will be below the mean .

Therefore , (a) Y score will be above the mean .

(b) the Y score will be below the mean .

Learn more about Linear Regression here

https://brainly.com/question/15682110

#SPJ4

The width and height of the rectangle inscribed in the right triangle have a measure of 3.529 units.

In this problem we must use critical values and algebraic methods to determine to determine the dimensions of the rectangle such that the area is a maximum. The equation of the quadrilateral is formed by definition of the area of a rectangle:

A = w · h    (1)

Where:

And the area of the entire triangle is:

0.5 · (5) · (12) = w · h + 0.5 · w · (12 - h) + 0.5 · (5 - w) · h

30 = w · h + 6 · w - 0.5 · w · h + 2.5 · h - 0.5 · w · h

30 = 6 · w + 2.5 · h

2.5 · h = 30 - 6 · w

h = 12 - 2.4 · w    (2)

The quadrilateral of maximum area is always a square, then we must  solve for w = h:

w = 12 - 2.4 · w

3.4 · w = 12

w = 3.529

Then, the width and height of the rectangle inscribed in the right triangle have a measure of 3.529 units.

To learn more on optimizations: https://brainly.com/question/15319802

#SPJ1

12.41

Step-by-step explanation:

12:50 is present time

12:50 + 12 hours = 12:50

12:50 - 9 minutes = 12:41.

Answer: 180 gallons needed

Step-by-step explanation:

Zykeith,

Assume x gallons of 50% antifreeze is needed

Final mixture is x + 60 gallons

Amount of antifreeze in mixture is 0.4*(x+60)

Amount of antifreeze added is .5x + .1*60 = .5x + 6

so .5x + 6 = .4(x + 60)

.5x -.4x = 24 -6

.1x = 18

x = 180

Let x be the number of gallons of the 50% antifreeze solution needed. We know that the resulting mixture will be 70 + x gallons. To get a 40% antifreeze mixture, we can set up the following equation:

\({\implies 0.5x + 0.1(70) = 0.4(70 + x)}\)

Simplifying the equation:

\(\qquad\implies 0.5x + 7 = 28 + 0.4x\)

\(\qquad\quad\implies 0.1x = 21\)

\(\qquad\qquad\implies \bold{x = 210}\)

\(\therefore\) We need 210 gallons of the 50% antifreeze solution to mix with 70 gallons of 10% antifreeze to get a mixture that is 40% antifreeze.

\(\blue{\overline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad}}\)

The Probability of rolling a 4's is 1/5

What is Probability?

The likelihood of an event happening is determined by probability. Probability is a unit of measurement for the likelihood of an event. It is the proportion between the number of positive outcomes and all possible outcomes. Consider this: Getting the numbers 3 and 5 while rolling the dice, as well as getting both an even and an odd number.

solution:

Probability of rolling of 4

P =  Number of times rolled / Number of total times rolled

P = 20 /100

P = 1 / 5  

Therefore the Probability of rolling a 4's is 1/5.

To learn more about Probability from the given link

https://brainly.com/question/13604758

#SPJ4

In this case, with four treatment groups and n = 12 participants in each group, dfwithin treatments would be equal to 3, because there are 4 - 1 = 3 treatment groups.

In a one-factor ANOVA, dfwithin treatments refers to the degrees of freedom within the treatment groups, which is a measure of the amount of variability that is present within each group.

The degrees of freedom within the treatment groups is used to calculate the mean square within treatments (MSwithin), which is a measure of the variability within each group. MSwithin is calculated by dividing the sum of the squared differences between each participant's score and the group mean by dfwithin. This value is then used to determine the statistical significance of the treatment effects, by comparing it to the mean square between treatments (MSbetween), which is a measure of the variability between the treatment groups.

In a one-factor ANOVA, the total degrees of freedom is equal to the number of participants in all of the groups combined (4 groups * 12 participants per group = 48) minus the number of groups (48 - 4 = 44). The degrees of freedom between treatments is equal to the number of groups minus 1 (4 - 1 = 3), and the degrees of freedom within treatments is equal to the total degrees of freedom minus the degrees of freedom between treatments (44 - 3 = 41).

Learn more about One-factor ANOVA here:

https://brainly.com/question/23638404

#SPJ4

Step-by-step explanation:

\(x < \frac{6}{7} \)

All the fractions which less than (6/7) will be true

The steps of the solution in the above photo

I hope that is useful for you :)

Answer:

1/2 times 1/3

Step-by-step explanation:

Multiply  them and you get 1/6 which is less than 2/7.

The half-life of a radioactive material is the time that it takes to reduce to half

In this case, the half-life is 21 hs, and since 42hs is twice the half-life, the material will reduce to half after 21 hours and then to half again.

one half of one half is:

Then we multiply by the initial amount:

The amount left after 42 hours is 4824 grams.

Answer:

Step-by-step explanation:

1. Put the words into math

3  3 1/4 divided by 2 3/8 equals a b/c.= 3 1/4/2 3/8

3 1/4/2 3/8=

1 7/19

2. Answer: 1 7/19

Answer:

The price of the shirt is $24.63.

Step-by-step explanation:

Let's assume the price of the shirt is x. Then the price of the wallet will be x - 15. We know that the total cost before tax is 34.26, so we can set up the equation:

x + (x - 15) = 34.26

Simplifying, we get:

2x - 15 = 34.26

Adding 15 on both sides:

2x = 49.26

Dividing by 2:

x = 24.63

Therefore, the price of the shirt is $24.63.

Answer:

The answer would be one

Answer:

false

Step-by-step explanation:

How many gallons of a 10% solution. Would need to be added to a 20% solution to obtain 50 gallons of a 30% solution?

2.How many gallons of milk containing 4% fat is mixed with milk containg 1% fat to obtain a 15 gallon mixture containing 2% fat?

The required amount of water in each beaker would be 0.14 liters.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Kelly poured equal amounts of distilled water into each of the 30 beakers. She used a total of 4.2 liters of distilled water.
Amount of liters she put in a beaker,
= 4.2 / 30
= 0 .14 liters per beaker

Thus, the required amount of water in each beaker would be 0.14 liters.

Learn more about simplification here:

https://brainly.com/question/12501526

#SPJ1

According to the information, we can infer that the correct expression is (10 * 7) + (2 * 7) (option D).

To find the correct expression we must look at the graph and interpret the information it has. In this case, some tiles are white and others are gray, so they would represent different elements. In this case, the white area is 10 * 7 tiles, so this would be the first part of the expression.

On the other hand, the second part of the expression would be 7 * 2, which represents the length, length and width of the gray area. According to the above, the correct expression would be (10 * 7) + (2 * 7), the first part in parentheses represents the white area and the second part in parentheses represents the gray area.

Learn more about tiles in: https://brainly.com/question/18257982

#SPJ1

Answer:

18 square units

Step-by-step explanation:

A square has the following vertices

(−7, −5), (−4, −2), (−4, −8), (−1, −5)

To determine if the are we look for the length of just one of it's sides, because it's a square,all of it's side are equal.

And the are is determined by squaring one of it's sides.

An attachment of the figure is given below to help us know the vertices to use to determine the length.

Length= √ ((-4-(-7))²+(-2-(-5))²)

Length= √((3)²+(3)²)

Length= √(9+9)

Length= √18

So area is the square of the length

Area= (√18)²

Area= 18 square unit

Answer:

D

Step-by-step explanation:

9514 1404 393

Answer:

  40°, 60°, 80°

Step-by-step explanation:

The total of ratio units is 2+3+4 = 9.

The total of angles in a triangle is 180°, so each ratio unit stands for 180°/9 = 20°.

The angle measures are ...

  20° × 2 = 40°

  20° × 3 = 60°

  20° × 4 = 80°

he two numbers that multiply to -35 and add to get -18 are -5 and 3.

To see why, you can use the factoring method. First, find two numbers that multiply to give you -35. The factors of -35 are -1, 1, -5, and 5. So, the two numbers that multiply to -35 are either -5 and 7 or 5 and -7.

Next, find which pair of numbers adds up to -18. It's clear that 5 and -7 add up to -2, so they don't work. However, if we choose -5 and 3, we get:

-5 + 3 = -2

So, -5 and 3 are the two numbers that multiply to -35 and add to -18.

Answer: x is -6

Step-by-step explanation:

Answer: i got 6 83/1000

Step-by-step explanation:

The confidence interval's upper and lower limits, respectively, are \(0.330\) and \(0.206\).

Similar to the upper limit, the lower threshold is indeed the smallest value in the class interval. To get the real lower limit, take the smallest number and either deduct 0.5 from it if it's a whole number or 0.05 from it if it's a decimal.

The highest and smallest values which a number may have prior to being rounded are known as upper and lower limits. These are also known as accuracy limitations.

\(CI = p +- z\sqrt{(p(1-p)/n)}\)

where

\(p =\) sample proportion \(= 67/250 = 0.268\)

\(z = z-\)score for a \(90\)% confidence level \(= 1.645\) (from standard normal distribution table or calculator)

\(n =\) sample size \(= 250\)

Substituting these values, we get:

\(CI = 0.268 +- 1.645\sqrt{(0.268(1-0.268)} /250)\)

\(= 0.268 +- 0.062\)

Therefore, the \(90\)% confidence interval for the proportion of all X-ray machines that malfunction is \((0.206, 0.330)\).

The lower limit of the confidence interval is \(0.206\), and the upper limit is \(0.330\).

To know more about  lower limit visit:

https://brainly.com/question/24121423

#SPJ1

Answer:

\(2x=20\sqrt{10}\; \textsf{ft} \approx 63.25\; \sf ft\)

\(6x=60\sqrt{10}\; \textsf{ft} \approx 189.74\; \sf ft\)

Step-by-step explanation:

Assuming the given triangle is a right triangle, we can use Pythagoras Theorem to calculate the value of x and then find the measurers of the side lengths.

\(\large{\boxed{a^2+b^2=c^2}\)

where:

From inspection of the given diagram:

Substitute these values into the formula and solve for x.

\(\begin{aligned} (2x)^2+(6x)^2&=200^2\\2^2\cdot x^2+6^2\cdot x^2&=40000\\4x^2+36x^2&=40000\\40x^2&=40000\\x^2&=1000\\x&=\sqrt{1000}\\x&=\sqrt{100 \cdot 10}\\x&=\sqrt{100}{\sqrt{10}\\x&=10\sqrt{10}\end{aligned}\)

Substitute the found value of x into the expression for each side length.

\(2x=2 \cdot 10\sqrt{10}=20\sqrt{10}\)

\(6x=6\cdot 10\sqrt{10}=60\sqrt{10}\)

Therefore, the exact side lengths of the given right triangle are:

\(20\sqrt{10}\; \textsf{ft}, \;\;60\sqrt{10}\; \textsf{ft}, \;\; 200\; \textsf{ft}\)

The side lengths to the nearest hundredth are: