What is the first step in solving the quadratic equation x² - 40 = 0?

Answer:

D.

Step-by-step explanation:

This will be D because the beaker already has 0.2 mL of water. If Jovita needs to add more water to the beaker, and then it is 0.8. In D, the diagram shows you 0.2 + x = 0.8, which makes it the right diagram.

Hope that helps!

Answer:

The Answer would be D.

Step-by-step explanation:

Because O.8 is the sum of how much 0.2+x equals to.

Answer:

i dont know what the answer is because i didn't learn scale factor but thanks for the point!

;D

(PLEASE MARK BRAINLIEST!!)

;)

;D

Answer: 19.8

Step-by-step explanation: distribute -3.3 into -6 by multiplying them together

Answer:

C: 5cm, 12cm, and 13 cm :)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Based on the information in the histogram, a reasonable conclusion would be that the exact time it took the students to finish the test is not indicated. Therefore, option B is the correct answer.Mrs. Brim made a chart to see how long it took her students to finish a test. However, the chart or histogram only shows how many students took a certain amount of time to finish the test and not their exact finishing time. Therefore, it's not possible to determine how long each student took to finish the test accurately.

Hope this helps! :)

Answer:Since the data values have a spread of 69 cm, intervals with a range of 10 to 20 cm are reasonable

Step-by-step explanationl:The data values have a range of 70 centimeters. Intervals with a range of 10-20 centimeters should be reasonable.

I believe your answer is D if i am wrong i am deeply sorry.

Step-by-step explanation:

Step-by-step explanation:

1) Parallel line:  

2) Rectangle

3) Perpendicular line:  

4) x-coordinate: 2.7

5) Distance:  

6) 3/8

7) Perimeter: 12.4 units

8) Area: 8 square units

9) Two slopes of triangle ABC are opposite reciprocals

10) Perpendicular line:  

Step-by-step explanation:

1)

The equation of a line is in the form

where m is the slope and q is the y-intercept.

Two lines are parallel to each other if they have same slope m.

The line given in this problem is

So its slope is . Therefore, the only line parallel to this one is the line which have the same slope, which is:

Since it also has  

2)

We can verify that this is a rectangle by checking that the two diagonals are congruent. We have:

- First diagonal:  

- Second diagonal:  

The diagonals are congruent, so this is a rectangle.

3)

Given points A (0,1) and B (-2,5), the slope of the line is:

The slope of a line perpendicular to AB is equal to the inverse reciprocal of the slope of AB, so:

And using the slope-intercept for,

Using the point  we find:

And re-arranging,

4)

The endpoints of the segment are X(1,2) and Y(6,7).

We have to divide the sgment into 1/3 and 2/3 parts from X to Y, so for the x-coordinate we get:

5)

The distance between two points  and  is given by

In this problem, the two points are

E(3,1)

F(4,7)

So the distance is given by

6)

We have:

A(3,4)

B(11,3)

Point C divides the segment into two parts with 3:5 ratio.

The distance between the x-coordinates of A and B is 8 units: this means that the x-coordinate of C falls 3 units to the right of the x-coordinate of A and 5 units to the left of the x-coordinate of B, so overall, the x-coordinate of C falls at

of the  distance between A and B.

7)

To find the perimeter, we have to calculate the length of each side:

So the perimeter is

p = 3.6 + 3.2 + 2 + 3.6 = 12.4

8)

The area of a triangle is

For this triangle,

Base = XW

Height = YZ

We calculate the length of the base and of the height:

So the area is

9)

A triangle is a right triangle when there is one right angle. This means that two sides of the triangle are perpendicular to each other: however, two lines are perpendicular when their slopes are opposite reciprocals. Therefore, this means that the true statement is

"Two slopes of triangle ABC are opposite reciprocals"

10)

The initial line is

A line perpendicular to this one must have a slope which is the opposite reciprocal, so

Using the slope-intercept form,

And using the point

we find:

Step-by-step explanation:

1) Parallel line:  

2) Rectangle

3) Perpendicular line:  

4) x-coordinate: 2.7

5) Distance:  

6) 3/8

7) Perimeter: 12.4 units

8) Area: 8 square units

9) Two slopes of triangle ABC are opposite reciprocals

10) Perpendicular line:  

Step-by-step explanation:

1)

The equation of a line is in the form

where m is the slope and q is the y-intercept.

Two lines are parallel to each other if they have same slope m.

The line given in this problem is

So its slope is . Therefore, the only line parallel to this one is the line which have the same slope, which is:

Answer:

I think that the answer would be (-7,-1) but i'm not that sure

Step-by-step explanation:

Answer:

liters of punch:

2

3

5

6

number of servings:

8

12

20

24

Step-by-step explanation:

2x?=8

?=4

so therefore the pattern is:

liters of punch x 4

or

number of servings divided by 4

hope this helped! if im wrong please correct me and no hard feelings!

Answer:

Litters of Punch: 2, 3, 5, 6

Number of Servings: 8, 12, 20, 24

Step-by-step explanation:

What I did was find how much 1 liter of punch was, so I divided 8 by 2 and got 4. Every 1 is 4 so then I looked for how many litters would 12 servings be, I divided 12 by 4 and got 3. For the next one, I multiplied the 5 by 4 and got 20. And for the last one I divided 24 by 4 and got 6.

Answer:

Table #4, with the r and the s

Step-by-step explanation:

It shows some kind of pattern

Answer:

I put the answer in a picture

Step-by-step explanation:

The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:

2/8 = j/18

This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:

2/8 = j/18

218 = 8j

36 = 8*j

j = 36/8

j = 4.5

Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.

Answer:

Step-by-step explanation
2 over 8 equals j over 18

This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.

So, the correct proportion is:

Answer:

h = 0.011

Step-by-step explanation:

Answer:

\(\frac{201}{50}\) or \(4\frac{1}{5}\)

Step-by-step explanation:

Hope this picture helps:

I like doing it first in mixed number.

50 goes into 200, 4 times.

1/5 of it is left so you add that to there =

\(4\frac{1}{5}\)

Multiply the numerator and denominator by the conjugate.

A conjugate is the inverse of an operation e. g + is the conjugate of -.

therefore the answer is squareroot of 10 divided by 3.

Character vs self is the dilemma that exists in Philip K. D--ick's short tale "The Eyes Have It." Option C

Although being blind and unable to see, the main character makes an effort to understand his environment by using the sounds he hears. He overhears a conversation through an open window and begins to imagine that the people speaking are either spies or crooks, which sparks the altercation.

The tension comes from his internal struggle to make sense of the situation as he struggles with his own thoughts and imagination.

Learn more about conflict:https://brainly.com/question/17085630

#SPJ1

Answer:

This represents a proportional relationship, the ratios are equivalent, and the constant of proportionality is 7.7.

Step-by-step explanation:

Since we know that six cell phones weigh 46.2 oz, we can divide 46.2 by 6 to find the weight of each, so 46.2/6=7.7.

We also know that fourteen cell phones weigh 107.8 oz, so we divide 107.8 by fourteen and get 7.7 as well.

Since both ratios equal 7.7 oz per cell phone, the ratios are equal and the relationship is proportional.

Step-by-step explanation:

Well, the cube root of a cubes volume is its edge length. So, for example, if a cube has a volume of 27 cm³, then the length of its edges are equal to the cube root of 27 cm³, which is 3 cm

An isosceles triangle has 2 sides that are equal.

I plotted these points. See attached screenshot.

The first side's distance is 5. You can just count those units along the x axis. (0,0) and (5,0) share the same y coordinate, so the difference in x coordinates is 5-0 = 5.

The next sides's distance is also 5. You can count that distance on the coordinate plane. (5,5) and (5,0) share the same x coordinate, so the difference in y coordinates is 5-0 = 5.

These two sides make a right triangle and are equal length. This is an isosceles right triangle.

Answer:

14.49272

Solution:

The screen shot i sent :D

Please mark as Brainiest if i got it correct

Answer:

85 degrees

Step-by-step explanation:

Answer:

1.

2.

Using the example of- 1, 2, 2, 3, 3, 3, 4, 5, 6, 7

Mean- Average, (the sum of every value)/10(# of values)= 3.2

Median- 3 (even though there are 2 3s, but add them up and divide the sum by 2)

Mode- 3

3. Well... you could use these data to do science reports etc, ofc in the world of academics, you would need to use this kind of statistics terms a lot. In normal life, you might have to compare the price of similar products and see which is the best to purchase, seeing the value of the median of the entire set of data.

Step-by-step explanation:

Answer & Step-by-step explanation:

The following sentence correctly uses parallel structure: "The scientific method consists of proposing your hypothesis, conducting your experiment, analyzing your data, and reporting your findings." In this sentence, all of the phrases are in the same form and describe actions that are part of the scientific method. Each phrase begins with a verb (proposing, conducting, analyzing, and reporting) and is followed by a noun that describes the action (hypothesis, experiment, data, and findings). This structure is parallel because each phrase has the same grammatical structure and describes a similar action.

The other sentences do not use parallel structure because they do not have the same grammatical structure or they do not describe similar actions. For example, in the first sentence, the phrases "propose a hypothesis" and "end with a reporting" are not parallel because they do not have the same grammatical structure. In the second sentence, the phrases "proposing your hypothesis" and "reporting your findings" are not parallel because they do not describe the same type of action (proposing is a mental process, while reporting is a physical action). In the third sentence, the phrases "begins with a hypothesis" and "reporting findings" are not parallel because they do not have the same grammatical structure (one begins with a verb and the other ends with a verb). Finally, in the fourth sentence, the phrases "hypothesize" and "reporting" are not parallel because they do not have the same grammatical structure (one is a verb and the other is a gerund).

Answer:

The scientific method begins with a hypothesis, continues with an experiment, then analyzing data, and reporting findings

Answer: The answer is B.