Mathematics High School

help me with this please and thank you

Answers

Answer 1

Step-by-step explanation:

1) if A(2;9) and B(6;17), then it is possible to make up the equation of the required line according

2) the rule:

[tex]\frac{x-X_A}{X_B-X_A} =\frac{y-Y_A}{Y_B-Y_A};[/tex]

3) if to substitute the coordinates of A&B into the rule, then:

[tex]\frac{x-2}{6-2}=\frac{y-9}{17-9}; \ => \ \frac{x-2}{4}=\frac{y-9}{8}; \ => \ \frac{x-2}{1}=\frac{y-9}{2};[/tex]

or 2x-y+5=0 or y=2x+5 (slope-interception form).

P.S. note, the suggested solution is not the shortest one. This task can be solved if to make up the system of two equations in slope-interception form.

b. see the attached picture (the required line is red colour);

c. f(4)=13. Short explanation: if to substitute the coordinate x=4 into the equation y=2x+5, then y=2*4+5=13;

d. the domain is (-∞;+∞), the range is (-∞;+∞).

Related Questions

uppose a normal distribution has a mean of 16 and a standard deviation of 4. A value of 26 is how many standard deviations away from the mean

Answers

Answer:

2.5 s. d.

Step-by-step explanation:

Use the formula for calculating z scores:

26 - 16

z = ------------- = 10/4 = 2.5

Here the value 26 is 2.5 standard deviations above the mean (16).

An item is regularly priced at $27. It is on sale for 35% off the regular price. What would be the sale price?

Answers

Answer:

$17.55

Step-by-step explanation:

Answer:

17.55

Step-by-step explanation:

You will pay $17.55 for a item with original price of $27 when discounted 35%. In this example, if you buy an item at $27 with 35% discount, you will pay 27 - 9.45 = 17.55 dollars

Rewrite the 4cm: 8km as a ratio in the form 1: n

Answers

Answer:

1 : 200000

Step-by-step explanation:

4 cm ⇒ 8 km

4 cm ⇒ 8 × 1000m

4cm ⇒ 8000m

4 cm ⇒ 8000 × 100 cm

4 cm ⇒ 800000cm

4 : 800000

[tex]\frac{ 4 \:\::\:\ 800000}{4}[/tex]

1 : 200000

Therefore,

1 : n

1 : 200000

Hope this helps you.

Let me know if you have any other questions :-)

1:2000000000 there

From my calculations that’s the last one

A recipe calls for 15 cup of milk for every 28 cup of flour. If Kenny wants to double the recipe, how many cups of flour will he need?

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

well if the recipe is 28 cups of flower, and he wants to double it, Then its 56, the milk is extrenuis info.

In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas. How many trombones are in the orchestra?

Answers

Answer:

Step-by-step explanation:

since the ratio is one to 3 there is one trombone for every 3 violas. you can find the answer by doing 9/3=3. so if there are 9 violas there are 3 trombones

this is the very last question I swear :-)

Answers

Answer:

x= (p+10)/5

Step-by-step explanation:

first you take the peaches and add 10, p+10, and then divide by 5

Answer:

(p + 10)/5

Step-by-step explanation:

(03.01)
Is the following relation a function? (1 point)
O Yes
O No

Answers

Answer:

Step-by-step explanation:

That is not a function because it didn't pass the vertical line test

there is a sale on a gallon of milk at the grocery store. The original price was $2.99 and the new sale price is $2.49. what is the percentage of decrease on the gallon of milk?round the anwser to the nearest whole percent

pls help

Answers

17 percent because the answer is 16.72 percent but when you round it up you get 17.

i need help with this question please

Answers

Answer:

AC = 24

Step-by-step explanation:

DE is the midline of the triangle, parallel to AC. It is half the length of AC, so ...

2·DE = AC

2(2x -14) = 3x -15

4x -28 = 3x -15 . . . . . eliminate parentheses

x = 13 . . . . . . . . . . . . . add 28-3x to both sides

AC = 3x -15 = 3(13) -15

AC = 24

_____

Additional comment

DE = 2(13) -14 = 12, half the length of AC.

Kate is selling jars of homemade pickles (p) and jars of relish (r). She has enough cucumbers for at most 50 jars of her products. The pickles sell for $6 per jar, and the relish sells for $4 per jar. She needs to make at least $260. When modeling this situation with a system of inequalities, which statements are true? A) p + r ≤ 50 6p + 4r > 260 B) p + r ≥ 50 6p + 4r ≥ 260 C) p + r ≤ 50 6p + 4r ≥ 260 D) p = 32 and r = 18 is a solution to the system. E) p = 28 and r = 22 is a solution to the system.

Answers

Answer:

C and E

Step-by-step explanation:

I just took the test and it said so.............................................................

Hey y’all I don’t understand, can you help me pls ASAP and show steps if u could

Answers

Answer:

(x, y) = (-2, -6)

Step-by-step explanation:

Learn more at https://brainly.com/question/15168004

Solve for
x
x
−
6
9
=
−
5

Answers

[tex]x - 69 = - 5 \\ x = - 5 + 69 \\ x = 64[/tex]

- BRAINLIEST answerer

Answer:

Step-by-step explanation:

Help plzz
How does robby respond to keith confessing his fear of chickens

Answers

The way that Robby responds to Keith confessing his fear of Chickens is; by sharing that makes robby uneasy.

What is the message in the text?

From the given text, we see that an aggressive chicken charged towards keith which made him scared that he ran to the gate.

Now, Robby noticed what happened and ran to keith but because he knew he was scared and wasn't easily going to open up his fears to him, he shared with him how he too can't swim in ponds as they make him nervous. He did that to show Keith that everyone has one fear or the other so that he does't feel bad.

Thus, we can say that the way that robby respond to keith confessing his fear of chickens is by sharing with him that also makes him uneasy.

Read more about message in text at; https://brainly.com/question/25904079

HELP ASAP ILL GIVE BRAINLIST

Solve for the measure of ∠PMR. Show your work and explain how you got your answer.

Answers

Answer:

61°

Step-by-step explanation:

We have to take the arcs at P to mean angles RPW and MPW are congruent. That means each is 58°/2 = 29°. Angle PMR is the other acute angle in right triangle PMW, so it will be the complement of 29°.

∠PMR = 90° -29° = 61°

Help me out I need it

Answers

Answer:

27 Chairs (See below)

Step-by-step explanation:

A: You will put 9 chairs in each row, and have 3 rows.

For a visual example I will use the symbol "O" for the number of chairs.

OOOOOOOOO

B: The multiplication problem, using the information 3 Rows, and 9 Chairs in each row, is 9x3

C: The factors are the numbers you are multiplying with, and the product, is your outcome when you multiply the two factors, 9, and 3.

So your answer is 27.

Hope this helps!

2. Ms.A buys 7 boxes of snacks. Each box has 12 packets of fruit snacks and 18 packets of cashews.
How many snack packets does she buy altogether?

Answers

Answer: 210

Explanation:

Each box has 12 packets of fruit snacks and 18 packets of cashews. That gives 12+18 = 30 packets overall per box. Since we have 7 boxes, that tells us the total count is 7*30 = 210

210
7 times 12 equals 84
7 times 18 equals 126
126 Plus 85 equals 210

A cylindrical water tank has a diameter of 4 m and a height of 3 m, while a water tank shaped like a rectangular prism has a length of 7 m, a width of 2 meters and a height of 2 meters. Which of the two tanks can hold more water? By how many cubic meters

Answers

The 1st one can vary more by 12 cubic meters

How to convert binary numbers into hexadecimal numbers.

Answers

Use this table,

ㅤ

the equation of a function is y=25- 3x find the value of x when y=34

Answers

y=25-3x
34=25-3x
3x=25-24
3x=1
X=1/3
-3

100 IF U GET THIS RIGHT!

Answers

Answer:

Feeling like an addict that ain't had it, up and at it in a minute

If it hadn't been invented, my limit wouldn't be infinite

I'm feeling like an infant in a womb

I'ma be here 'til the tomb

Lately I've been in my room

Lookin' and lookin' at records on the wall

Hold up

Answer:

Slope:

y-intercept:

(0,2/5)

Step-by-step explanation:

If C = C(q) is a firm's total cost function, the quantity epsilon_{c} = q/C * (dC)/(dq) is called the elasticity of cost at the output q . Discuss the relationship between marginal cost and average cost for the intervals of being higher and lower than 1 (15 points). epsilon_{c}

Answers

Answer:

the answer is 5,746 = c

Step-by-step explanation:

4x2 + 5x - 3x2 + 2y - 3x + 2y?

Answers

Answer is 2+2x+4y
Have a great day/night

Answer:

2+2=5

Step-by-step explanation:

100 POINTS!!!!!! hELP ASAP EXAM
Show that ( + )^2 = ( + )( − ) + 2

Answers

Answer:

2+y=x÷2 y=5 x=23

Step-by-step explanation:

it was very eazy

Let that unknown one be x

[tex]\\ \rm\rightarrowtail x^2=x(-x)+2[/tex]

[tex]\\ \rm\rightarrowtail x^2=-x^2+2[/tex]

[tex]\\ \rm\rightarrowtail 2x^2=2[/tex]

[tex]\\ \rm\rightarrowtail x^2=1[/tex]

[tex]\\ \rm\rightarrowtail x=1[/tex]

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST

Answers

Answer: D (n> 8/ 3 )

A rectangular pipe flowing full has the following cross-sectional dimensions Width: 6 m Height: 9 m Find the pipe's hydraulic radius in meters

Answers

45 meters unless the pipe is 60 seconds with out water

I think of a number. I add 3 then divide it by 2. My answer is 12. Form an equation and solve it to find my number.

Answers

Answer:

Step-by-step explanation:

21 plus 3 equals 24 divided by 2 equals 12

Suppose that a box contains one fair coin (Heads and Tails are equally likely) and one coin with Heads on each side. Suppose further that someone else selects one of the two coins at random, tosses it three times, and gets the outcome {Heads, Heads, Heads}. In this problem, you will answer the following question in several parts: What is the probability that the chosen coin was the fair coin

Answers

Using conditional probability, it is found that there is a 0.1 = 10% probability that the chosen coin was the fair coin.

Conditional Probability

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened. [tex]P(A \cap B)[/tex] is the probability of both A and B happening. P(A) is the probability of A happening.

In this problem:

Event A: Three heads.Event B: Fair coin.

The probability associated with 3 heads are:

[tex]0.5^3 = 0.125[/tex] out of 0.5(fair coin).1 out of 0.5(biased).

Hence:

[tex]P(A) = 0.125 + 0.5 = 0.625[/tex]

The probability of 3 heads and the fair coin is:

[tex]P(A \cap B) = 0.5(0.125) = 0.0625[/tex]

Then, the conditional probability is:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0625}{0.625} = 0.1[/tex]

0.1 = 10% probability that the chosen coin was the fair coin.

A similar problem is given at https://brainly.com/question/14398287

suppose another tire is rolled 100 revolutions and travels about 5027 inches what is the radius of this tire NEED THIS ANSWERED

Answers

Answer:

8 in

Step-by-step explanation:

The radius of the tire is 8.00 inches

How to determine the radius?

The given parameters are:

Revolution, r = 100

Distance, d = 5027

Start by calculating the circumference of the tire using:

C = d/r

This gives

C = 5027/100

Evaluate

C = 50.27

The circumerence of a circle is:

C = 2pi r

This gives

2pi r = 50.27

Make r th subject

r = 50.27/2pi

Evaluate the quotient

r = 8.00

Hence, the radius of the tire is 8.00 inches

Answers

Answer:

[tex]x {}^{2} + 5x + 6 \\ {x}^{2} + 3x + 2x + 6 \\ x(x + 3) + 2(x + 3) \\ (x + 3) (x + 2)\\ \\ ( {x}^{2} + x - 6) \\ {x}^{2} + 3x - 2x - 6 \\ x(x + 3) - 2(x + 3) \\ (x - 2)(x + 3) \\ \\ {x}^{2} - 9 \\ (x - 3)(x + 3) \\ \\ the \: hcf \: = (x + 3)[/tex]

Mrs. Reyes purchased nine books for her classroom that each cost $5.63. Using complete sentences, explain how to find the total cost of the books. Make sure your answer includes the steps of the algorithm you would use, as well as the product. HELP PLEASE i'm stuck

Answers

Answer:

5.63 x 9 = 50.67

Mrs. Reyes has spent $50.67 on books.

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help me with this please and thank you​

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help me with this please and thank you