Mathematics High School

## Answers

**Answer 1**

Answer

X=2+7/4y

Y=-8/7+4/7x

**Answer 2**

**Answer:**

x- intercept = 2, y- intercept = - [tex]\frac{8}{7}[/tex]

**Step-by-step explanation:**

To find the x- intercept, let y = 0 in the equation and solve for x

4x - 7(0) = 8 , that is

4x = 8 ( divide both sides by 2 )

x = 2 ← x- intercept

To find the y- intercept , let x = 0 in the equation and solve for y

4(0) - 7y = 8, that is

- 7y = 8 ( divide both sides by - 7 )

y = - [tex]\frac{8}{7}[/tex] ← y- intercept

## Related Questions

(1,9) and (6,34) What is that slope

### Answers

Slope = 5

m = 25 / 5 = 5 / 1 = 5

1.45 is what percent of 116?

( please show work)

### Answers

**Answer:**

suppose 1.45 is x % of 116, so

116 *x/100=1.45

x=1.45*100/116

x=145/116

x=1.25 %

**Step-by-step explanation:**

Help please need answer soon

### Answers

**Answer:**

c

**Step-by-step explanation:**

(x+25)(3+2x)-(x+4)(x+1)

=(3x+2x²+75+50x)-(x²+4x+x+4)

=(2x²+53x+75)-(x²+5x+4)

=2x²+53x+75-x²-5x-4

=x²+48x+71

Which equation describes the line perpendicular to the graphed line and has a y intercept at (0,6)

### Answers

**Answer:**

y= -1/6z + 6

**Step-by-step explanation:**

to turn 6 into a perpendicular

What is the vertex of (x) = –16x² + 64x + 80.

### Answers

**Answer:**

** (2, 124)**

**Step-by-step explanation:**

**f(x) = a(x - h)² + k ** - the vertex form of the equation of the parabola with vertex (h, k)

[tex]f(x) = -16x^2+ 64x + 80\\\\f(x) = -16(x^2- 4x) + 80\\\\f(x) = -16(\underline {x^2-2\cdot2x\cdot2+2^2}-2^2) + 80\\\\f(x) = -16\big[(x-2)^2-4\big] + 80\\\\f(x) = -16(x-2)^2+64 + 80\\\\\bold{f(x)=-16(x-2)^2+124\quad\implies\quad h=2\,,\quad k=124}[/tex]

The vertex is **(2, 124)**

A cardboard box has edges of length 5.5 in, 3.2in,and 7.25 in.what is the volume of the box?I will gave u Brainliest if u tell me the answer have a nice day

### Answers

**Answer:**

The answer is 127.6

**Step-by-step explanation:**

To find the volume of something, you multiply.

So:5.5 times 3.2 times 7.25 is equal to 127.6

HOPE THIS HELPS YOU!!!! :)

**Answer:**

127.60 square inches

**Step-by-step explanation:**

Multiply the diameters all together to get your answers.

5.5 x 3.2 x 7.25

Multiply

5.5 x 3.2 = 17.6

Multiply some more

17.6 x 7.25 = 127.6

You can also just multiply like this:

5.5 x 3.2 x 7.25 = 127.6

Hope this helped :)

Please consider Brainliest :)

| m^2 + n^2 |

When m = -5 and n = 3, the value of the expression is *blank*

### Answers

**Answer:**

the value of the expression is -16

**Step-by-step explanation:**

[tex]-5^{2} + 3^{2}[/tex]

Which of the following situations could be represented by the expression - 14+ (- 7)?

A Matt owes $14 to his mom and $7 to his friend.

Melissa made $14 at her job and spent $7 on lunch.

Rafique scored 14 points on Tuesday and 7 on Wednesday.

D

Katrina dove 14 feet down in the water and then went up 7 feet.

### Answers

**Answer:**

Matt's

**Step-by-step explanation:**

he has to give away $14 (-14)

and also $7 (-7)

The others have positive numbers.

The most Julius can afford to pay per year in mortgage payments is $11,500,

and his credit score is currently 463. According to the following table for a

$150,000 mortgage, by how many points would he need to improve his credit

score in order to take a mortgage for $150,000?

### Answers

Answer:

212 points

Step-by-step explanation:

He can only afford $11500 per year so divide that by 12, gets you 958 so he’s in the 675-699 range subtract 675- his current credit score to get the number of points he will need.

Mrs.Johnsons new car has an 18 gallon gas tank. If she can travel 400 miles on one tank of gasoline, what is her miles per gallon rate to the nearest whole number

### Answers

**Answer:**

22

**Step-by-step explanation:**

400/18=22.222222222

Round to 22

i'll mark you has brainliest

### Answers

**Answer:**

y= 5 x+ 1

**Step-by-step explanation:**

**Answer:**

i think its 21x + 11 = y

**Step-by-step explanation:**

sorry if this is wrong, if it is someone correct me.

Juan and Dylan are selling bottled water. Juan sold 4 bottles for every 6 that Dylan sold. Dylan sold 16 more bottles than Juan. How many did each boy sell?

### Answers

Answer:

Dylan sold 48 bottles

Juan sold 32 bottles

Step-by-step explanation:

The ratio of bottles sold is;

J:D = 4:6

Dylan sold 16 more than Juan

That means d = j + 16

so;

j/j + 16 = 4/6

6j = 4(j + 16)

6j = 4j + 64

6j - 4j = 64

2j = 64

j = 64/2

j = 32

d = j + 16

d = 32 + 16

d = 48

Which of the following completes the proof?

Triangles ABC and EDC are formed from segments BD and AC, in which point C is between points B and D and point E is between points A and C.

Given: Segment AC is perpendicular to segment BD

Prove: ΔACB ~ ΔECD

Reflect ΔECD over segment AC. This establishes that ∠ACB ≅ ∠E'C'D'. Then, ________. This establishes that ________. Therefore, ΔACB ~ ΔECD by the AA similarity postulate.

translate point E' to point A; ∠E'D'C' ≅ ∠ABC

translate point D' to point A; ∠E'D'C' ≅ ∠BAC

translate point D' to point A; ∠D'E'C' ≅ ∠BAC

translate point E' to point A; ∠D'E'C' ≅ ∠BAC

### Answers

From the given question, the required answer is option D. It can be deduced that: Reflect ΔECD over segment AC. This establishes that ∠ACB ≅ ∠E'C'D'. Then, **(translate point E' to point A)**. This establishes that **(∠D'E'C' ≅ ∠BAC)**. Therefore, **ΔACB ~ ΔECD by the AA similarity postulate**.

**Rigid transformation** is a process of **resizing** a given shape or figure. This can be done by either** increasing or decreasing its dimensions (size) or changing its orientation**. Some of the **methods** required in rigid transformation are: **reflection, translation, rotation **etc.

From the given question,

if **ΔECD** is first **reflected** over (turned about) **segment AC**, it would be deduced that m∠ACB ≅ m∠E'C'D' = [tex]90^{o}[/tex](right angle principle).

Then, the next process is to **translate** (extend) **point E' to point A**, so that **m∠D'E'C' ≅ m∠BAC**.

This would also ensure that m∠E'D'C' ≅ m∠ABC due to the translation.

This implies that **ΔACB ~ ΔECD** by the **AA similarity postulate**.

Therefore, performing **reflection and translation operations** on ΔECD step-wisely can be used to prove that **ΔACB ~ ΔECD** by the **AA similarity postulate.**

A sketch for more clarifications is herewith attached to this answer.

For more clarifications, visit: https://brainly.com/question/20486329

**Answer:**

its d, i took the test

(at the bottom of the photo it says earned 1 point meaning it right)

what is next in the sequence ? 17, 13, 9, 5

### Answers

**Answer:**

1

**Step-by-step explanation:**

It is being subtracted by four everytime

one less than the quotient of a number and negative five

### Answers

**Answer:**-5x-1**Step-by-step explanation:**

Let's say the unknown number is x

**Quotient = is the answer to a multiplication question**

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We have to multiple -5 by x:

= -5x

_---------------__-------------__-----------____-----------------------------------------

Lastly: we have to minus 1 from -5x

= -5x-1````````````````````````````````````````````````````````````````````````````````````````````````````````````````If you learned from my answer please rate it below from a scale of 1 to 5 using the stars to let me know how well you learned from my answer.Make sure to also press the like button (Thanks button) if you really liked my answer / explanationIf it was incorrect or you didn't learn from it please review my answer accordingly (report if incorrect)````````````````````````````````````````````````````````````````````````````````````````````````````````````````I only want to spread knowledgeable and truthful information let me know if it is incorrect or not helpful so I / Brainly can take it down.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Lastly, If your the owner of this question please mark me Brainliest if you really learned from my answer I really do appreciate it.

**Completing the question** and **solving the equation**, it is found that **the number is 20.**

--------------------------------

We don't know the value of the **number**, so we call it **x.**The **quotient **of a **number and negative five** is:

[tex]\frac{x}{-5} = -\frac{x}{5}[/tex]

**One less** **than the quotient** is:

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

--------------------------------

**Supposing **this is **equals to 5.**

[tex]1 + \frac{x}{5} = 5[/tex]

[tex]\frac{x}{5} = 4[/tex]

[tex]x = 5 \times 4 = 20[/tex]

Thus, **the number is 20.**

A similar problem is given at https://brainly.com/question/17155730

How can you tell if a linear system of equations has an infinite number of solutions?

### Answers

The graph of a linear equation with two variables, x and y, is a line. There are an infinite number of solutions for a line

Which of the following situations best matches the data in the table?

### Answers

**Answer:**

It's C

**Step-by-step explanation:**

Because I'm BIG-BRAINED

Question 6 (1 point) Fossils are usually found in sedimentary rock. O True O False

### Answers

**Answer: true**

**Step-by-step explanation:**

The information is in the picture PLEASE HELP ME

### Answers

**Answer:**

The answer is A

**Step-by-step explanation:**

2t(t-4)

(2t x t)(2t x -4)

2t^2 - 8t

PLZ HELP ITS DUE TODAY

A family rents a car for their family trip to Disneyland . There is a one-time charge of $30 for insurance. The rate to rent the car is $75 per day. The total cost for the rental was $480. How many days was the car rented for?

### Answers

**Answer:**

6 because the insurance price doesn't matter. You subtract the insurance from 480 and have 450. Then you divide by 75

What is the point slope form of a line with the slope -5 and point (2,-8)?

### Answers

**Answer:**

-5x-y=27

**Step-by-step explanation:**

Plz give brainliest I am trying to rank up.

Drag the tiles to the correct boxes to complete the pairs. Match each population trend to a contributing factor. government-sponsored family control programs agricultural economies medical advancements Industrial Revolution high birthrate arrowRight low death rate arrowRight increase in food supply arrowRight low birthrate arrowRight Reset Next

### Answers

**Answer:**

Matching the population trend to a contributing factor:

**Contributing Factors Population Trends**

government-sponsored family control programs Low birth rate

agricultural economies increase in food supply

medical advancements low death rate

Industrial Revolution high birth rate

**Step-by-step explanation:**

a) Contributing factors are some negative or positive factors that influence or cause a single event or chain of events that result to the incident.

b) Defining population trends:

1) High birth rate: the industrial revolution triggered high birth rate, following increased food supply and medical advancements.

2) Low death rate: medical advancements brought about low death rate as better healthcare is provided to the sick.

3) Increase in food supply: large-scale agricultural economies ensured increasing food production and supply.

4) Low birth rate: when governments started sponsoring family control programs, the resulting effect was low birth rate.

**Answer:**

The first one is children and adolescents

the second one is adults

the third one is pregnancy

the last one is indivisuals with brittle bones

**Step-by-step explanation:**

hope this helps :D

help find the missing length indicated will give brainliest!!

### Answers

**Answer:**

x=192

**Step-by-step explanation:**

A method of solving a system of equations in which you obtain opposites to cancal one of the variables and solve for the other variable

### Answers

Method of Elimination

Eric started at sea level. He descended 13.7 meters and then ascended 15.2 meters. Write an additional expression in the form Descent + Ascent to represent this situation. Then calculate the sum and explain what it represents.

### Answers

Expression: -13.7 + 15.2

Answer: 1.5 meters

Representation: The answer is where Eric is at now.

Hope this helped!

An **additional **expression in the form Descent + Ascent to **represent **this situation is -13.7 + 15.2. The **sum **will be 1.5 meters.

What is an expression?

The **mathematical **expression combines **numerical **variables and operations **denoted **by addition, **subtraction**, multiplication, and division signs.

Mathematical **symbols **can be used to **represent **numbers (constants), variables, operations, **functions**, brackets, punctuation, and grouping. They can also **denote **the logical syntax's **operation **order and other properties.

Given that Eric **started **at sea level. He **descended **13.7 meters and then ascended 15.2 meters.

The **expression **will be **written **as,

E = -13.7 + 15.2.

E = 1.5 meters

Therefore, the** additional **expression in the form Descent + Ascent to **represent **this situation is -13.7 + 15.2. The **sum **will be 1.5 meters.

To know more about an **expression **follow

https://brainly.com/question/2164351

#SPJ2

what is the measure of <x

### Answers

**Answer:**

x = 24°

**General Formulas and Concepts:**

Pre-Alg

Equality Properties

Geometry

Definition of a Line: A line is **180°**

**Step-by-step explanation:**

Step 1: Set up equation

x + 156 = 180

Step 2: Solve for *x*

Subtract 156 on both sides: x = 24

What is the product of 35 and 434?

A. 21720

B. 3320

C. 4310

D. 515

### Answers

**Answer:**

none of the answer choices are correct.

CORRECT ANSWER: 15,190

**Answer:**

The actual product is 15,190

**Step-by-step explanation:**

AB←→ intersects PQ←→ at point M;

Point C is on AB←→ ;

Point R is on PQ←→ ;

△CMR is a right triangle.

Which statement describes the relationship between AB←→ and PQ←→ ?

A.

AB←→ and PQ←→ are skew

B.

AB←→ and PQ←→ are collinear

C.

AB←→⊥PQ←→

D.

AB←→∥PQ←→

### Answers

**Answer:**

**(C). AB←→⊥PQ←→**

**Step-by-step explanation:**

This is the only suitable answer to produce a triangle △CMR which is a right triangle.

When we will draw Line AB And PQ which they are intersecting And to produce a right triangle by taking two random points ( C on AB and P on PQ).

Then AB and PQ must be Perpendicular to each other, only then a triangle CMR will be right angled at M.

Jasmine wants to use her savings of $1,128 to buy video games and movies. The total price of the movies she bought was $72. The video games cost $43 each. Choose the inequality that would be used to solve for the maximum number of video games Jasmine can buy with her savings.

A. 43 + 72x ≤ 1,128

B. 43 + 72x ≥ 1,128

C. 43x + 72 ≥ 1,128

D. 43x + 72 ≤ 1,128

### Answers

**Answer:**

D. 43x + 72 ≤ 1,128

**Step-by-step explanation:**

She has $1,128

Total price $72

43x since its unit rate for each

43x + 72 is less than or equal to $1,128

**Answer:**

D. 43x + 72 ≤ 1,128

**Step-by-step explanation:**

Good luck! Hope this helped :)

What equation is graphed in this figure?

A. y−4=−13(x+2)

B. y−3=13(x+1)

C. y+2=−3(x−1)

D. y−5=3(x−1)

### Answers

Answer:

c. [tex] y + 2 = -3(x - 1) [/tex]

Step-by-step explanation:

By using a point on the line and the slope, we can determine the equation, in point-slope form, that is graphed in the figure.

Using two points, (1, -2) and (0, 1),

[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 -(-2)}{0 - 1} = \frac{3}{-1} = -3 [/tex]

m = -3

Using a point, (1, -2) and the slope (m), we can create an equation for the graph in point-slope form, by substituting x1 = 1, y1 = -2 and m = -3 in [tex] y - y_1 = m(x - x_1) [/tex].

Thus, we would have:

[tex] y -(-2) = -3(x - 1) [/tex]

[tex] y + 2 = -3(x - 1) [/tex]

The equation that is graphed in the figure is:

✔️[tex] y + 2 = -3(x - 1) [/tex]