Mathematics High School

So if the following system of equations by substitution.

7x+2y= -13
-3x-8y= -23

A. (-3,1)
B. (-3,4)
C. (1,3)
D. (1,1)

Answers

Answer 1

Step-by-step explanation:

Option B is correct.

I'm sure (-3 , 4)

So If The Following System Of Equations By Substitution. 7x+2y= -13-3x-8y= -23 A. (-3,1) B. (-3,4)C.
Answer 2

Answer:

x=-3, y=4. (-3, 4). B)

Step-by-step explanation:

7x+2y=-13

-3x-8y=-23

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

4(7x+2y)=4(-13)

-3x-8y=-23

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

28x+8y=-52

-3x-8y=-23

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

25x=-75

x=-75/25

x=-3

7(-3)+2y=-13

-21+2y=-13

2y=-13-(-21)

2y=-13+21

2y=8

y=8/2

y=4

Related Questions

what is the measure of angle 1 ? pls i need help ​

Answers

This is a chord, chord angle problem.

Angle 1 = (50 + 56)/2. This leads to 53 degrees.

Answer:

58

Step-by-step explanation:

(50 + 56)/2 = 116/2 = 58

find the function. f(-7) if f(x) = 8x+15
f(-7) =
-4?
7
0 ​

Answers

Answer:

-41.

Step-by-step explanation:

Replace the x by -7:

f(-7) = 8(-7) + 15

= -56 + 15

= -41.


If the line segment at right is subdivided
into equal parts, what is the length of
the marked portion of the line?
75

Answers

Answer:

50

Step-by-step explanation:

75 dived into 3 parts can also be written as 75/3. 75/3 is 25 making each part worth 25. 2 segments are included in the marked portion so its 50 or (25 + 25)

A quantity with an initial value of 220 grows continuously at a rate of 9.5% per hour. What is the value of the quantity after 255 minutes, to the nearest hundredth?

Answers

Answer:

i need help

Step-by-step explanation:

11. Cory owns x shoes. Nico has y shoes. The
number of shoes Cory owns is 1 less than 2 times
the number Nico owns. Together they have a total of
11 pairs of shoes. How many shoes does Cory and
Nico have each?

Answers

Answer:

5 and 6

Step-by-step explanation:

Answer: Cory owns 7 shoes, Nico owns 4.

Solve for x and show your work! For each equation choose if there are:
• zero solutions for x • exactly one solution for x • or an infinite number of solutions for x.
3x + 5 = 7 + 3x

Answers

3x+5 = 7 +  3x

3x+5= 3x + 7

3x + 5 = 3x + 7

3x + 5 - 5 = 3x + 7 - 5

3x = 3x + 2

3x - 3x = 3x + 2 - 3x

Answer : 0 = 2

Hope this helps!

Simplify
(20n−36)−54​(35n−20)​

Answers

Answer:

-1870n + 1044

Step-by-step explanation:

Graph the following exponential function given the table of
values.

Answers

Answer:

D

Step-by-step explanation:

Here, we want to select the graph of the given exponential function values

Let us take a look at the y-intercept

At the y-intercept, the value of x is 0

The y-intercept for this particular equation is 1

This mean that the y-intercept value is 1

hence, the graph will touch the y-axis at the point y = 1

looking at the graphs , only the graph D provides this, and that should be our answer

someone please tell me how to work out this type of problem i completely forgot

Answers

Answer:

Plug the x-values into the equation to get the y values. This will give you coordinates that you can graph a line with.

Step-by-step explanation:

For x = -5:  y = -3 - 2 * (-5) = 7, so the coordinates are (-5, 7)

For x = -2:  y = -3 - 2 * (-2) = 1, so the coordinates are (-2, 1)

(Etc.)

Then, plot these coordinates and draw a line through them to complete the graph.  

Question :
25+25 -25 = ____​

Answers

Answer:

25+25-25=25+0=25 is your answer

Answer:

25 +25-25=25

Have a nice day!

If a triangle has a side length of 5 inches and another side length of 7 inches, which of the
following choices for the third side length will make a triangle?
a. 1 inch
b. 2 inches
c. 6 inches
d. 13 inches

Answers

Answer:

d. 13 inches

Step-by-step explanation:

When we need to solve the side length and length of triangles, we need to remember one thing.

Coming to a right triangle, there are two short sides and one long side, and the two short sides need to add up to something less than the one long side.

Therefore, since we know our two short sides, add them :

7in. + 5in.

= 12in.

Looking at the answers, we can point out that d. is greater than 12 inches, therefore making it the correct answer.

Can someone explain this to me

Answers

Answer:

[tex]\huge\boxed{\sf tan \ 28 = x / 14}[/tex]

Step-by-step explanation:

Since opposite and adjacent is given, we will use tan as trigonometric ratio.

Hence,

opposite = x , adjacent = 14 and [tex]\theta[/tex] = 28

So,

[tex]\sf tan \theta = opposite / adjacent[/tex]

tan 28 = x / 14

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

HELP PLEASE!! No websites allowed please, complete 1,2,3, and 4.

NO WEBSITES! OR YOU ARE REPORTED thank you

Answers

Answer:

1: 31.5. 2: 5. 3: 4.6 4: 45

The quotient of 4,768 divided by 4.22 is greater than which of the following ? A. 1,000 B. 1,400 C .1,600 D. 2,000

Answers

Answer:

a.

Step-by-step explanation:

Which is the correct solution to the cubic equation,
3/ 3x-2=1

-3
-1
1
3

Answers

Answer:

x = 1

Step-by-step explanation:

[tex]\sqrt[3]{3x - 2} = 1[/tex]        Cube both sides of the equation

3x - 2 = 1

3x = 3

x = 1

Check:  [tex]\sqrt[3]{3(1) - 2} = \sqrt[3]{3 - 2} = \sqrt[3]{1} = 1[/tex]   Since x = 1 makes the original equation true, then x = 1 is the solution.

The correct solution for the given equation is x = 1.

What is an equation?

An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given is a cubic equation, [tex]\sqrt[3]{3x-2}[/tex] = 1

Solving for x,

[tex]\sqrt[3]{3x-2}[/tex] = 1

Cubing both the sides,

([tex]\sqrt[3]{3x-2}[/tex])³ = 1

3x - 2 = 1

3x = 3

x = 1

Hence, the correct solution for the given equation is x = 1.

Learn more about equations, click;

https://brainly.com/question/29538993

#SPJ2

what is 500 times 10​

Answers

Answer:

500*10=5,000

hope this helps

Answer:

5,000

Step-by-step explanation:

please correct me if im wrong

A small business earns a profit of $6500 in January and $17,500 in May. What is the rate of change in profit for this time period?

The rate of change in profit for this time period is per month.

Answers

Answer:
Rate of change of profit for this period = $2750 / month

Explanation

36/c=45/10 please help me

Answers

Answer:

c = 8

Step-by-step explanation:

36/c = 45/10

36 * 10 = 45 * c

360 = 45c

c = 360/45

c = 8

Someone plz help me giving brainliest

Answers

It would be a=16/25 or 0.64

This oblique cylinder has a volume of 90\pi\text{ m}^390π m
3
90, pi, start text, space, m, end text, cubed and a base area of 12\pi\text{ m}^212π m
2
12, pi, start text, space, m, end text, squared.
whats the height?

Answers

Answer:

7.5

Step-by-step explanation:

The height of the cylinder is equal to 7.5 meters.

Given that,
An oblique cylinder has a volume of 90π m ^3 and a base area of 12π m^2.

What is a cylinder?

A cylinder is defined as it is geometric shape when a rectangle sheet fold into a circular shape the figure arises looks same as the tube structure.

What is volume?

Volume, is defined as the ratio of the mass of object to its density.


The volume of the oblique cylinder = height * base area

90π = 12π  * height
height = 7.5 m                                

Hence, the height of the cylinder is equal to 7.5 meters.

Learn more about Cylinder here:

brainly.com/question/3216899

#SPJ2

The question seems to be incomplete or improperly written,
So Correct Question could be given as,


This oblique cylinder has a volume of 90π m ^3 and a base area of 12π m^2.

what is the height of the cylinder?

Can someone help me, please? Also, can someone explain it?

Answers

Answer:60m^2

Step-by-step explanation:you have to find the height of the triangle first which is easy bc it’s been split in half so the are now two right triangles. use the pythagorean theorem to determine the height, the height is 12, the formula for the area of a triangle is 1/2bxa and half of the base is already given to you, 5 so 5 x 12 equals 60

ANSWER ASAP ILL GIVE BRAINLIEST

Answers

Answer: C

Step-by-step explanation: There are 9 cards. 3 are vowels. 3/9 reduces to 1/3

A quadratic in factored form is given as (x + 5) (2x - 3) = 0, what are the solutions of this given equation?
X = and x =

Answers

Answer:

x = -5, x = 1.5

Step-by-step explanation:

If the two expressions multiplied together is 0, that means that one of the expressions would have to equal 0. This gives us two possible answers. Our two equations are now:

x + 5 = 0

2x - 3 = 0

We will first solve the first one!

To isolate x, we subtract 5 from both sides to get:

x = -5

Onto the second one!

We begin to isolate x by adding 3 to both sides.

2x = 3

Now we divide both sides by 2.

x = 3/2 or 1.5

Answer:

Step-by-step explanation:

Can anyone help me with these questions? I am sorry if they aren’t a lot of points.

Answers

Answer:

Question 1: A

Question 2: B

Question 3: C

Step-by-step explanation:

Please give me brainliest if this helps! :)

The area of a circle is 0.5024 square centimeters. What is the circle's radius?

Answers

r≈0.4cm
A Area
Hope this helps

write the ratio in simplest form

30/55​

Answers

Answer:

6:7

Step-by-step explanation:

Hope it helps

#CARRY ON LEARNING

6/11

The numerator and denominator can each be divided by five. Once the denominator has been divided by five, it is now prime. That is as far as you can go.

if a wind turbine costs 1.3 million per megawatts how much would it cost to build a 2.6 megawatts wind turbine​

Answers

Answer:

It would cost 3.38 million for 2.6 megawatts.

Step-by-step explanation:

1.3 X 2.6 = 3.38

3.38 million for 2.6 megawatts.

Can a real person help me out all the hackers just want me to delete the app

Answers

Answer:

Question 7: x = 36

Question 4: x = 14

Question 9: D

Step-by-step explanation:

someone pls just comment something again​

Answers

Answer:

?

Step-by-step explanation:

Answer:

こんにちは、お元気ですか？

あなたの質問があれば、私もうまくやっています。日本での生活はとても楽しいです！日本に来てください。

Step-by-step explanation:

Find m∠E

*geometry problem*

Answers

8x+4=9x-5
when you solve that out you get x =9
then you plug in x everywhere in the chart

3(9)=27
9(9)-5=76
180-76-27= 77°

angle E =77°

please mark brainiest if you can
Other Questions
What were the humans hoping in Animal Farm? What is the effect of rhyme in Shakespeare? How do I find the value of a + b + c? The Everglades are wetlands in southern Florida. In 1948, federal and local governments joined together to divert water from the Everglades in order to create dry land for humans to live on. The change in water flow affected the ecosystem negatively. In 2000, the Comprehensive Everglades Restoration Plan was initiated. The goal of this legislation is to return the water flow to its historical path. Which of the following was necessary for the Comprehensive Everglades Restoration Plan to be enacted?a. They had to ask the public for monetary donations for the funding of the project. b. They had to survey the public for their opinions. c. They had to monitor the health of the system for years and collect data. d. They had to collect samples of all native plants. Name three ways B2B marketer can enhance customer relationships How do you find the x-intercept of a linear equation in two variables? 4. Find an example of a print or Internet ad that includes images and text, and then answer the following questions about it. Describe the ad. (1-3 sentences. 1.0 points)What do you think this ad's marketing message is? (1-5 sentences. 2.0 points) TIP: Does it use a specific desire or fear, or does it try to show how the product is a need or how it solves a problem?Is the ad trying to get people to do something? If so, what is it trying to get people to do? If it isn't trying to get people to do something, what do you think the point of the ad is? (1-5 sentences. 2.0 points) Do you think this ad is effective? Why or why not? (1-5 sentences. 2.0 points) The nurse working in the emergency department is assessing four clients' ability to tolerate pain. Which client is likely to tolerate a higher level of pain?A. A 10-year-old who was burned by a camp fire earlier today.B. A 70-year-old who has a postoperative infection from a surgery one week ago.C. A 23-year-old woman who sprained her knee while bicycling.D. A 55-year-old woman who has had moderate low back pain for three months. Which of the following statements regarding hazardous materials is correct? A. Most hazardous materials are odorless and colorless, even when a substantial leak or spill has occurred. B. Some substances are not hazardous by themselves, but become toxic when mixed with another chemical. C. A package or truck need only contain small quantities of a hazardous chemical before it must bear a placard or label. D. Identifying the presence of a hazardous material is generally very easy because of the consistent use of placards. What were the two major impacts of the Great Migration? Develop a Tic-Tac-Toe game using the JavaFX FXML. The requirements mentioned is just the base. 1) Game is going to have at least 2 Scenes, Login Scene and GamePlay Scene. 2) Game will have 2 fxml files and 2 controller classes. 3) In the Login Scene, it is sufficient to learn the Names of the Players 4) Game will then load the GameScene with the Player Names updated on the GameBoard. 5) The game starts by clicking the "Start" button and "Start" button is disabled until the game finishes. The name of the player who is going to play is displayed in a different color to emphasize. 6) The players uses different symbols and play the game one by one. 7) At each turn, program need to check if there are any spots left or if there is a winner. If so, should prompt it. 8) Count the number of times each player wins and update the Game Scene. your company makes game parts using 3-d printers. one customer wants a circular game coin that is 2.0 centimeters across and 0.5 centimeters thick, as shown below. you need to estimate the amount of plastic you will need for each batch of 50 coins. how many cubic centimeters is that, rounded up if necessary to be a multiple of 10 cubic centimeters? Zeke is attempting to learn more about his world. when he encounters a new object, he picks it up and puts it in his mouth. zeke is most likely in which of jean piagets stages of cognitive development? Should libero play left back or middle back? part j bulb r4 is now removed from the circuit, leaving a break in the wire at its position. what is the current in the bulb r1 ? express your answer in amperes. templatessymbols undoredoresetkeyboard shortcutshelp i 18. Which of the following statements reflects an opinion based on judgments?Next year, many students will want to attend the football tournament.The football tournament makes a lotof money for the Booster Club.The way to get more students to attend is to hand out free admission tickets.The band doesn't like performing when it is raining. Which are the best schools in Ajman? QuestionSolve the equation.2w=9w= Why does protectionism cause a deadweight loss in trade? A force of 343.8 N is used to push a car 38.5 m horizontally in 4.86 s. Calculate the power developed.