Mathematics Middle School

Pls help i need it now pls i will give 20points pls answer it correctly pls

Solve the system y = -x + 7 and y = -0.5(x - 3)^2 + 8

Answers

Answer 1

Step-by-step explanation:

-x+7=-0.5(x-3)^2+8

-x+7=-0.5x^10 -4.5^10

am I getting ...!?

Answer 2

Answer:

(-1,6) and (-7,0)

Step-by-step explanation:

-x+7=-0.5(x-3)^2+8

times both sides by -2

2x-14=(x-3)^2-16

expand

2x-14=x^2-6x+9-16

add 14-2x to both sides

0=x^2-8x+7

factor

0=(x-7)(x-1)

set to zero

0=x-7

7=x

0=x-1

1=x

so find y

y=-x+7

y=-1+7

y=6

or

y=-7+7

y=0

Related Questions

Pls help me ITS DUE TOMORROW
TROLL FOR POINTS= REPORT

CORRECT ANSWER= BRAINLIEST

( NO LINKS )

Answers

g is less than 75

g=12

75-63= 12

Hope this helps!

Answer:  g < 2

Step-by-step explanation:

anything larger than two and it at or be over 75$.

Jennifer's group was trying to build the tallest straw tower in the classroom. Each person in her group connected various lengths:

Jennifer: 16 cm, Harry: 20 cm, Brendan: 5 cm and Taylor: 52 cm.

Sort the number sentences that will tell you how tall their tower was.

Answers

93cm. I could be wrong tho. Hope this helps
93m I could be wrong too

Heya, i need help with these 3 questions. thank you a ton!

Answers

Hope this helps! :)
There is an explanation in the photo below, as well as some things to remember!

List at least 3 ways you can use a table or a graph to determine if a function is linear or nonlinear.

Answers

Answer:

1) if you use the graph, it should go in a straight line, if it does, it’s linear.

2) if you use a table, you can see to make sure the numbers go up/down at the same rate

3) if you have a graph and a table, you could always compare both, and make sure they’re both linear

Hey also had the same question and I also got the same answer as a top guy because my teacher went through it

hi I need help I don't know how to right an equation like ugh this is hard to explainnn so (Your father uses text messaging to communicate with his employees. If he sends an average of 19 text messages each day, how many more text messages does he send than you? Write an equation and solve for the unknown value.) How would I right this I'll give brainliest to whoever explains

Answers

Answer:

19>x

Step-by-step explanation:

19>x that is the answer so yeah

Please help with this lolll (A, B and, C are NOT answers, they're questions.)

Answers

Answer:

B

Step-by-step explanation:

The answer is b because ¼ can not go in to 2 ½ evenly (A), ¾ can not go into 2 ½ evenly either (c) so the only answer is B!

A = 10 bags
B = 5 bags
C = 3 bags

Given the net below calculate the surface area. The sides measure 6 by 4, the top and bottom measure 8 by 6 and the front and back are 8 by 4.

Answers

Answer:

152

Step-by-step explanation:

So first I find the area of the big rectangle going down, which is 14x8=112

And then I do the flap thingies on the side: 5x4=20x2=40

112+40=152

Answer:

152

Step-by-step explanation:

Please give me brainliest, please, I hope this helps

Please help I will reward Brainliest

Answers

Answer:

Here is a list of polygon names depending on the number of sides they have, starting with three and ending with ten.

3 sides - Triangle.

4 sides - Quadrilateral.

5 sides - Pentagon.

6 sides - Hexagon.

7 sides - Heptagon.

8 sides - Octagon.

9 sides - Nonagon.

10 sides - Decagon.

Step-by-step explanation:

Kenny is building a box using 2 identical square pieces of wood and 4 identical rectangular pieces of wood, as shown. What is the surface area of the box?

Select one:

84

336

108

434

Answers

Answer:

Step-by-step explanation:

108

Answer:108

Step-by-step explanation:

my brain told me

plz help will mark brainliest if correct answer only ​

Answers

Answer:

A

Step-by-step explanation:

I added all frequencies and it equals 50. The frequency for 1 is 8 so the answer would be 8/50. Simplify it and it equals to 4/25.

A pair of sneakers that cost $90 last year has now been marked up 25%. Mariel has a coupon that is going to take 10% off the price of the shoes. Is the price that she will pay equivalent to a 15% markup of the original cost of the shoes? Show your work.

Answers

Answer:

Your answer is no.

Step-by-step explanation:

The answer is no because when using the coupon she's only getting 10% off of the price AFTER 25% is added.

10% off of the original price is: $81.00

10% off of the new price is: $101.25

please help me out i don't understand this question thanks!

Answers

Answer:

try using radius i think

Step-by-step explanation:

Answer:

Use radius

Step-by-step explanation:My teacher says so

here is 1-12 of the assignment

Answers

1. 5m-6 m=7
5(7)-6
35-6
Answer: 29

2. 4m+t (t=2) (m=7)
4(7)+2
28+2
Answer: 30

3. r/t (r=8) (6=2)
8/2
Answer: 4

4. m*t (m=7) (t=2)
7*2
Answer: 14

5. 5t+2m
5(2)+2(7)
10+2(7)
10+14
Answer: 24

6. r*m
8*7
Answer: 56

7. 3m-5t
3(7)-5(2)
21-10
Answer: 11

8. m*r/t
7(8)/2
56/2
Answer: 28

10. n+16
The sum of a number n and 16.
11. 3.2n
The product of 3.2 and a number n.
12. 25.6-n

I know I already send this all to you, but if anyone else needs help here’s the answers.
Just read this guys ^
|

pls answer for free 3 brainliests

Answers

Answer:

Step-by-step explanation:

735$

$735 hope this helps

Pls help i have at dead line this is 5th grade math

Answers

Answer:

1/8

Step-by-step explanation:

I hope this helps.

Each friend got 1/8 peice of the pie

solve for points.
(no need to explain how you got it.)​

Answers

x all of them

Step-by-step explanation:

In ∆DEF, if m∠D is 14 less than m∠F and m∠E is 10 more than twice m∠F, find the measures of each angle.

Answers

Step-by-step explanation:

pag plasin mo kung anong angel ang present para ma kuha mo yung wla

d=f-14, e=2f+10
f-14+f+2f+10=180
4f-4=180
f-1=46
f=46, d=32, e=102

During an annual end-of-year performance review, a team of realtors reported the number of homes sold that year. The histogram shows those sales results. Which of the following statements are true about the home sales data set represented by this histogram? Select all that apply.

Answers

Answer:

There were 7 realtors who sold at least 40 homes

How do you solve this?

Answers

I think it’s C because the base is 180 degrees so C would be the best response
The answer is 148 the straight line will always be 180 and if you subtract 32 from 180 you get 148

When it says square 5, does that mean 5^2 or does it mean [tex]\sqrt{5}[/tex]

Answers

it means the 2nd one .. i cant put that symbol but it is the second one you put

Answer:

what i mostly understand by square 5 is [tex]\sqrt{5}[/tex] because 5^2 would be 5 squared.

A high school track is shaped as a rectangle with a half circle on either side. Jasmine plans on running three laps. How many yards will Jasmine run? Use 3.14 for Pi.

A. 248.5 yd
B. 490.5 yd
C. 725.5 yd
D. 745.5 yd

Answers

Step-by-step explanation:

= 25 yards ; r = 25/2 = 12.5 yards

circumference of two semicircle = circumference of circle

= 2πr = 2*3.14*12.5 = 78.5 yards

Perimeter of school truck = 78.5 + 85 + 85 = 248.5 yards

Distance traveled by Jasmine = 3* 248.5 = 745.5 yards

Answer:

d

Step-by-step explanation:

i took the test

helpppppppppppppppppppppppp i need an answer

Answers

All you have to do is just put a number for x...so for the first one you could do x=8, because 8 is less that 9. For the second one you could do x= 10, because 10 is greater than 6

what expression is equvialent to -6 (-2/3 + 2x)?

Answers

Answer:

the answer is −

1 2 + 4

Step-by-step explanation:

i hope this helps

Please answer number 17 and you will get brainliest

Answers

Answer:

Since the shape was formerly a square,ofarea 100in²

Then,Area of square=side×side

100in²=side²

side=√100in²

side=10 inches

Perimeter of the shape=10+10+7+6+5

=38inches

Now a length of 3inches is cut off from the upper horizontal side and a length of 4in is also cut off from the right vertical side.

So now we can say a triangle of base 4in and height 3in is cut off from the square.

Area of cut off triangle=½base×height

=½×4×3=0.5×12

=6 inches ²

So the Area of the shape=Area of square-Area of triangle

=100-6=94inches²

PLEASE GIVE BRAINLIEST

What is the difference in a compound independent event and a compound dependent event? (explain in words, not just one word answers)

Answers

Answer:  Compound events can be made up of a number of independent events (events in which the outcome of one event has no effect on the probability of the other) or dependent events (events in which the outcome of one event affects the probability of another).

Step-by-step explanation:

Correct the error. Perimeter =4+3+4+5+ = in.


WILL GIVE BRAINLIEST

Answers

Answer: You are missing a 4.

Step-by-step explanation: If you said the answer is 20, 4 is missing. We can add up the follow equation before putting 4.

(4 + 3) + (4 + 5)

   7     +    9 = 16 + 4 = 20.

Hence, 20 is your answer.

I’m pretty sure the mistake is here you are missing 4

Pls help will give brainliest

Answers

Answer: 5, -6

5= x -6= y

X:5, Y:-6
Answer: 5 and -6.

HELP ME!!! I WILL GIVE BRAINIEST!!

Answers

Answer:

the coordinates are 5,-5

sorry if this doesn't help

Write a quadratic function whose graph has a vertex of (3,2) and passes through the point (4,7). f(x)=

Answers

Answer:

y=5(x-3)^2+2

Step-by-step explanation:

You plug the point into f(x)=a(x-3)^2+2... that already has already been solved for the vertex that you want. Then you swap it out for the solution you have solved for.

The required function is [tex]f(x)=5(x-3)^2+2[/tex].

Important information:

Vertex of a quadratic function is (3,2).The graph passes through the point (4,7).Quadratic function:

The vertex form of a quadratic function is:

[tex]f(x)=a(x-h)^2+k[/tex]

Where, [tex]a[/tex] is a constant and [tex](h,k)[/tex] is vertex.

Substitute [tex]h=3,k=2[/tex].

[tex]f(x)=a(x-3)^2+2[/tex]         ...(i)

The graph passes through the point (4,7). Substitute [tex]x=4, f(x)=7[/tex] in (i).

[tex]7=a(4-3)^2+2[/tex]

[tex]7=a+2[/tex]

[tex]7-2=a[/tex]

[tex]5=a[/tex]

Substitute [tex]a=5[/tex] in (i).

[tex]f(x)=5(x-3)^2+2[/tex]

Therefore, the required function is [tex]f(x)=5(x-3)^2+2[/tex].

Find out more about 'Quadratic function' here:

https://brainly.com/question/15280010

Fine two integers that have a sum of -17 and a product of 52. What are the integers?

Answers

Answer:

{4, 13}

Step-by-step explanation:

Represent the integers by I and J.  Then I + J = -17 and I*J = 52.

Let's solve this system using substitution.  Solve the first equation for I as follows:  

I + J = -17 becomes I = -J - 17

Substitute -J -17 for   I   in the second equation:

(-J - 17)*J = 52

Performing the indicated multiplication, we get:

-J^2 - 17J - 52 = 0

Let's solve this using the quadratic formula.  The quadratic coefficients here are {-1, -17, -52}, and so the discriminant, b^2 - 4ac, is

(-17)^2 - 4(-1)(-52), or 289 - 208, or 81.  This result is positive, so we know that the quadratic equation has two real, unequal roots.  They are:

      17 ± √81         17 ± 9

J =  --------------- = ---------------

         2(-1)                  -2

Evaluating this last result, we get J = (17 + 9)/2, or J = 13, and

J = (17 - 9)/2 = 8/2, or J = 4

Other Questions
What did the War Production Board do about strikes by workers during WWII? A. They discouraged strikes. B. They encouraged strikes. C. They financed strikes. Logging involves people cutting down trees to acquire timber for uses such as building homes and making paper. How would logging affect a pine forest ecosystem? Choose the two that apply. For Each coin, state its worth as a percentage of $1? 10 Points for Answering Find x: 6x-8= 1/2 (4x+5) If you could rename Civil War with a more accurate descriptive title what would you call it? a furnace is thermal energy A. True B. False This is a math riddle for pi day I cant understand. There was one with the pi symbol in a pumpkin so it was obviously pumpkin pie, so what would this one be? Any ideas? Expository Writing- Prompt:Describe how and why peoplechoose the particular foods theyeat. Please I could use the help from anyone! Please help me with dis what is the answer to y=-2/3+b Which groups opposed the spread of slavery during the 1860 presidential election?the Southern Democratic Partythe Republican Partythe Constitutional Union Partythe Democratic Party What do organisms get when Glucose is broken down? Which two factors contributed to the fall of the Roman Empire? While sorting some change into piggy banks, Gabby put 58 coins in the first piggy bank, 78 coins in the second piggy bank, 98 coins in the third piggy bank, and 118 coins in the fourth piggy bank. What kind of sequence is this? arithmetic or geometric Please help me i need the answer very hard and plz dont guess ty A farmer has a field in the shape of a semicircle of diameter 50 m. First,calculate the length of the semicircle to 1 decimal place.50 m true or false. the demand curve for the product of a monopolist is the same as the demand curve for the industry. what is the history of team sports? Which of the following would most Americans agree is a fundamental American value?freedomconformitysecrecyconservatism help plz kinda urgentHow does theexcretory system remove wastes from theblood of the circulatory system?