Mathematics High School

This is a pic of my question.. ​

This Is A Pic Of My Question..

Answers

Answer 1

Answer:

The answer is c

Step-by-step explanation:

5x+3y=19

multiply x 2: 10x+6y=38

2x-4y=-8

multiply by -5: -10x+20y=40

now you can add the two equations:

                    10x+6y=38

                    -10x+20y=40

add equations 0x+26y=78

                               Y=3

Related Questions

f(x)=x^2-3x+2 find f(2)

Answers

Answer:

[tex]y=x^{2} -3x+2[/tex]

Step-by-step explanation:

Give me Brainllest plz T-T

Answer:

0

Step-by-step explanation:

HELP PLEASE!! THANKS!
Find the constant of proportionality.

K =​

Answers

Answer:

9

Step-by-step explanation:

9x2=18

9x4=36

For soccer season Ron wants to buy a new soccer ball, a pair of shorts , and a pair of soccer shoes. The ball cost $11.15, the shorts cost $7.60, and the shoes cost $13.30 Ron has $10.60. How much more money does Ron need?

Answers

Answer:

21.45

Step-by-step explanation:

Answer:

Ron needs $21.45 more

Step-by-step explanation:

soccer ball price + pair of shorts price + pair of soccer shoes price = total amount needed

11.15+ 13.30 + 7.60 = 32.05

Ron has 10.60

32.05-10.60=21.45

The grades for 200 students at a middle school are represented in the graph below how many more students earned Cs then Ds

Answers

Answer:

B. 60

Step-by-step explanation:

There are a total of 200 students here, and 45% got Cs, to find how many got Cs, multiply 200 by 45%, or 0.45: 200*0.45 = 90, 90 people got Cs.

15%  got Ds, multiply 200 by 15%, or 0.15 to get 30, 30 got Ds

The amount who got Cs minus the amount who got Cs is 90 - 30 = 60, 60 more students got Cs than Ds

The circumference of each of the smaller circles is 12 mm. Find the area of the shaded region.​

Answers

Answer:

11.45mm^2

Step-by-step explanation:

Given data

Circumference= 12mm

The expression for the circumference is

C= 2πr

12= 2*3.14*r

12= 6.28r

r= 12/6.28

r= 1.91mm

Hence the area of each small circle is

A= πr^2

A= 3.14*1.91^2

A= 3.14*3.6481

A=11.45mm^2

Answer:

the answer is b. 72 pie mm squared

Step-by-step explanation:

edge 2021

its a function or not fuction?​

Answers

answer:

it's a function

step-by-step explanation:

according to g00gle- in mathematics, a function is a binary relation between two sets that associates to each element of the first set exactly one element of the second set. typical examples are functions from integers to integers, or from real numbers to real numbers.

but the simple definition is that a function is when the x value isn't being repeated. and since in your case it isn't, the table is a function

another way to solve-

for this, we will put the pairs into a graph then perform the line test-

as you can see each point has its own individual line, therefore, meaning it passed the vertical line test

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

I really need help on this please ​

Answers

Answer:

2 inches

Step-by-step explanation:

i think that this would be monday*3 + thursday*2 in order to find all five days

so (0.5*3)+(0.25*2)= 2inches.

hope this helps!

A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing an ace or a spade?

Answers

Answer:

Probability of ace of spades [tex]\frac{1}{52}[/tex]

probability of any spade card [tex]\frac{13}{52}[/tex]

Answer:

1/28

Step-by-step explanation:

A coat at a store is originally priced at $54.99. The store marks the price down to $32.99. To the nearest percent, what is the percent markdown of the coat?

Answers

Answer:

66.6%

Step-by-step explanation:

Step one

given

A coat at a store is originally priced at $54.99

The store marks down the price down to $32.99

Required

the percent decrease

Step two:

the percent decrease= change in price/ old price*100

the percent decrease= 54.99-32.99/54.99*100

the percent decrease= 22/ 32.99*100

the percent decrease= 0.666*100

the percent decrease= 66.6%

Find the product. (5x + 6) (2x² - 7x2 + 2x - 3) (5x+6) (2x3 - 7x² + 2x - 3) = || (Simplify your answer.)​

Answers

Answer:

350x⁶+1360x⁵-1337x⁴-7618x³-5517x²+1620x+1836

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

the answer is x3

11x3=33

5x3=15

multiply by 3 on all of them    

mark brainliest plz

Write an equation to match this graph. I WILL GIVE BRAINLIEST, PLEASE HELP!

Answers

Answer:

f(x) = -|x| + 1.

Step-by-step explanation:

You get this by inverting the graph of  f(x) = |x| then moving it up 1 unit.

f(x) = -|x| + 1.

By invert I mean reflect in the x-axis.

Answer:

f(x) = -|x| + 1.

Step-by-step explanation:

Help me plsss with this problem i took a screen shot.

Answers

Answer:

x - 15 ≤ -6

+15     +15

X = 9

Help me pls ( only correct answers) tyy

Answers

Answer:

100 cubic in

Explanation

step 1: divide the figure into two

step 2 : find area then multiply by height of the cuboid

step 3 : add both

Answer:

The answer is 100.

Step-by-step explanation:

Volume = weight times height times length = 5 times 1 times 8 = 40

Volume = weight times height times length = 5 times 2 times 6 = 60

So now that we have the volume of each rectangular prism, we must add them together to get the full volume.

60 + 40 = 100

Someone please help me
Solve 6a + 5a= -11
​

Answers

Answer:

hi

Step-by-step explanation:

6a+5a= -11

11a= -11

a= -11/11

a= -1

hole it helps

have a nice day

Does Brainly help with Geometry?

Answers

Answer:

Yes!

Step-by-step explanation:

Brainly can function as an algebra practice tool, a geometry solver, and a fraction calculator.

What is Geometry?

One of the first areas of mathematics is geometry, along with arithmetic. It is concerned with spatial characteristics like the separation, shape, size, and relative placement of objects. A geometer is a mathematician who specialises in geometry.

The three most popular types of geometry are solid geometry (which deals with items like the line, sphere, and polyhedron) and spherical geometry (which deals with objects like the spherical triangle as well as spherical polygon). Plane geometry deals with objects such as the point, line, oval, triangle, and polygon.

Thus, Brainly can function as an algebra practice tool, a geometry solver, and a fraction calculator.

Learn more about Geometry, here:

https://brainly.com/question/31408211

#SPJ3

Which of the following describes the sequence
2, 9, 16, 23, ... ?

t = n + 7
t = 4n + 1
t = 7n - 5 J
t = n - 7

Answers

t = n + 7


Example:
t = (2) + 7
t = 9

t = (9) + 7
t = 16

t = (16) + 7
t = 23

What percent of 12 is 48?

Answers

It would be 25% I believe

Answer: 25%

Step-by-step explanation:

Plz I need help with this ASAP

2(x-5)^2=128

This is solving quadratic functions by square roots

Answers

Answer:

x = 13  and  x = -3

Step-by-step explanation:

divide each side by 2 first and get:

(x-5)² = 64

take the square root of each side next and get:

x - 5 = [tex]\sqrt{64}[/tex]

x - 5 = 8  and  x - 5 = -8

x = 13  and  x = -3

Answer:

x = 13 and x = -13

Step-by-step explanation:

.........

A home business has an average income of $900.00 per month with a standard deviation of $15.00. If the income in a given month is $930.00, what z-score corresponds to this value?

Enter the answer to the nearest tenth. Z= ?

Answers

Answer:

2.00

Step-by-step explanation:

Z score is a statistical that corresponds to the standardization of the regular score to a normal distribution

The formula for Z score is Z = [X - mean ]./ (standard deviation)

Here X = 930.00; mean = 900.00; and standard deviation = 15.00

Then, Z = [930.00 - 900.00] / 15.00 = 30.00 / 15.00 = 2.00

and what is the permiter of the right triangle
A. 21 in sq
B. 28 in sq
C. 31.5 in sq
D. 63 in sq

Answers

Answer:

the answer is b 28 in sq

Step-by-step explanation:

the area is b i believe

can you solve this my teacher is so rude and she literally gave me a 40 cuz this answer was wrong​

Answers

Answer:

the answer should be -1

Step-by-step explanation:

-3 + (-2) + (-4) = -9

-9 + 4 = -5

-5 ÷ 5 = -1

Hope this helped :)

Answer:

-1 is your answer,

Step-by-step explanation:

first of all, add all those scores

-3 + 1 + -2 + -4 + 3 = -5

and for average, there is 5 rounds, so divide by 5

hence answer is -5 / 5 - = -1

The seventh grade class is putting on a verity shell to raise money it cost 1700 to rent the banquet hall That they are going to use. If they charge for $55 for each ticket, how many tickets do they need to sell in order to raise at least $2000 write an inequality that represents the situation.how many tickets do they need to sell?

Answers

Answer:

g

Step-by-step explanation:

An isosceles triangle has an angle that measures 122º. Which other angles could be in that
isosceles triangle?

26 / 29 / 58 / 38

Answers

Answer:

29

Step-by-step explanation:

2x + 122 = 180

2x = 180 - 122

2x = 58

x = 29

find the product. write your answer in exponential form. 1^-7*1^3​

Answers

you first eliminate the same base and bring down the exponents

-7 . 3

-7×3

= -21

I-Ready you now and no Du..a.s...s. answers or links

Answers

Answer:

13/18

Step-by-step explanation:

The two negatives cancel out.

1/6 * 4 1/3 is 13/18, first turn 4 1/3 to 13/3.

Hope this helps

what is 3053.62805928 to the nearest cubic inch​

Answers

Answer:

3054

Step-by-step explanation:

When you round to the nearest unit, in this case inch, you need to look at the tenths place.

5 or more raise the score

4 or less, let it rest.

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

Since the number in the tenths place is a 6, it will bump up the number to a 3054.

Good Luck!

i need help asapppppppppppppppppppppppp

Answers

Answer:

unshaded

Step-by-step explanation:

Answer:

A black triangle

Step-by-step explanation:

Which goes to this inequality x + 1 < 3

Answers

I got x < 2 for the inequality
Look at the image for more information

can i get some help pls

Answers

Answer:

36

Step-by-step explanation:

Other Questions
Thousands of caves can be found throughout the United States. Each one is a unique subterranean environment that may include enormous chambers, tight tunnels, underground rivers and waterfalls, unique animals, or other natural wonders. It's no surprise that humans throughout history have explored caves. The recreational sport of exploring caves is known as caving or spelunking. Anyone can enjoy caving, which offers adventurous experiences for all levels. In the United States, more than one hundred caves are open to the public. People can explore them by participating in guided tours or by following marked paths. This is a great way to get started with caving and to experience the sport firsthand. Those seeking more adventure can join caving clubs to learn advanced caving skills and connect to others who share their passion. The National Speleological Society sponsors over two hundred caving clubs in the United States. These clubs organize excursions to caves that are not open to the public, and advanced spelunkers may even get the chance to explore parts of caves that have never been seen before. Caving clubs also promote conservation; as a general rule, people should never leave anything behind in caves, never take anything out, and never damage any rock formations. Caving requires special equipment. For example, it is very important to have a source of light when exploring a dark cave. Cavers need to wear a well-fitted helmet with a headlamp. Back-ups for light sources, which can include extra batteries, flashlights, and glow sticks, are also important. Caves often get cold and can be very wet, so rugged, waterproof clothing, including sturdy hiking boots, is recommended. Other items to bring include enough food and water for the excursion, a small first aid kit, and a map of the cave. Caving can be a very safe sport when participants are well informed, cautious, and prepared. No one should explore a cave alone; it is best to explore in small groups of four to six people, and every expedition should have a At the candy store there are 1170 candies: 1080 gumdrops and 90 chocolate bars. What is the ratio of candies to chocolate bars? A collection of computers and other hardware devices that are connected together to share hardware, software, and data, as well as to communicate electronically with one another? Explain. What are the solutions of x^2 - 2x +2 = 0?A. X= i Or x= -iOB. X= 2+ i or x = 2- IO C. x = 1+i or x = 1-i O D. x = 2i or x = -2i hiii please help ill give brainliest:) PLS HELP!!!!! Which expression shows the product of two factors?2 62 + 62( + 6)(2 + ) + (6 + ) The diagram shows a rectangle with length2)(3d + 2) am and width (d+5) cm.3d+2d+5a Write an expression for the perimeter of therectangle.b Given that the perimeter is 30 cm, make andsolve an equation to find ac Find the area of this rectangleM Mr. Jackson earns $1,500 each week and his wife earns $850 a week. Each week they need to set aside $200 for food, $75 for gas, $625 for the mortgage, and $350 for savings. How much money will they have left each week? hii please help asap ill give brainliest thanks Explain what community programs are designed to do Mathematics.(NO LINKS TO VIRUSES OR PHOTOS PLEASE OR I WILL REPORT TO BRAINLY!)Which does NOT represent the interior angles measures of a triangle?A. 5, 75, 100B. 10, 80, 90C. 20, 60, 100D. 45, 45, 45E. 50, 50, 80 Does zoning allow factories, or buildings above a certain height, in your community or neighborhood? What kinds of businesses are allowed? Is it good to have fear or not??debate plz A number pattern has the rule divide by 3 the fifth term of the pattern is 2 what is the second term of the pattern. please solve this geometry equation with the work ! for 40 points and brainliest Find the discriminant of the following quadratic equation then state the number of rational, irrational, and imaginary solutions.Equation: 6x26=7x9Discriminant: AnswerSolutions: please help (no links) or i will report you i just need answers What is the difference between an endoskeleton and a exoskeleton? What types of animals have each? What set the stage for the Era of Good Feelings?End of wars in EuropeComplete control of the American hemisphereCommon direction for America. .Only two key political parties Each dance class is 3/4 hour. It takes a student 7 1/2 hours to learn a dance routine. Whichstatement is true?