factoring
factor: 80n^2+56n​

Answer:

x = - 2.5

Step-by-step explanation:

Given that the sketch represents

y = x² + bx + c

The graph crosses the y- axis at (0 , - 14), thus c = - 14

y = x² + bx - 14

Given the graph crosses the x- axis at (2, 0), then

0 = 2² + 2b - 14

0 = 4 + 2b - 14 = 2b - 10 ( add 10 to both sides )

10 = 2b ( divide both sides by 2 )

b = 5

y = x² + 5x - 14 ← represents the graph

let y = 0 , then

x² + 5x - 14 = 0 ← in standard form

(x + 7)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 7 = 0 ⇒ x = - 7

x - 2 = 0 ⇒ x = 2

The x- intercepts are x = - 7 and x = 2

The vertex lies on the axis of symmetry which is midway between the x- intercepts, thus

the x- coordinate of the turning point is [tex]\frac{-7+2}{2}[/tex] = [tex]\frac{-5}{2}[/tex] = - 2.5

Answer:

346

Step-by-step explanation:

like i multiply 5 by 4 twice

2 by 9 twice

2 by 10 twice

9 by 10 twice

Answer:

290.5 square miles

Step-by-step explanation:

Consider splitting this figure into two mini rectangles and a triangle, each of given lengths;

[tex]Dimensions of Rectangle 1 - Height ; 5 mi, Length ; 7 mi,\\Area of Rectangle 1 - Height * Length = 5 mi * 7 mi = 35 mi^2\\\\Dimensions of Rectangle 2 - Height ; 18 mi, Length ; 8 mi,\\Area of Rectangle 2 - Height * Length = 23 mi * 8 mi = 184 mi^2\\\\Dimensions of Mini Right Triangle - Height ; 11 mi, Base ; 8 + 5 = 13 mi,\\Area of Mini Right Triangle - 1 / 2 * Base * Height = 1 / 2 * 13 mi * 11 mi = 71.5 mi^2,\\\\Area of Figure = 35 mi^2 + 184 mi^2 + 71.5 mi^2 = 290.5 square miles[/tex]

Solution; 290.5 square miles

Answer:

Step-by-step explanation:

5. 70 L = 70000 mL

6. 10 mL = 0.01 L

7. 1.2 L = 1200 mL

8. 3500 mL = 3.5 L

9. 4 L = 4000 mL

10. 230 mL = 0.23 L

11. 6.21 L = 6210 mL

12. 5000 mL = 5 L

Answer:

The guys above or below me is correct

Step-by-step explanation:

Answer:

Step-by-step explanation:

Using set notation to answer the question.

let n(U) be the total number of people surveyed = 1000

n(L) be number of people that visited London = 310

n(P) be number of people that visited Paris = 222

n(P∩L) be number of people that visited both cities = 118

n(P∪L)' be number of people that visited none of the cities = x

n(U) = n(PUL) + n(PUL)'

We willl get n(PUL) using the formula;

n(PUL) = n(P)+ n(L)-n(P∩L)

n(PUL)= 222+310-118

n(PUL)= 414

Since n(U) = n(PUL) + n(PUL)'

1000 = 414+n(PUL)'

n(PUL)' = 1000-414

n(PUL)' = 586

586 peoples visitied none of these cities?

Answer:

First answer option:

"The first equation should be multiplied by 2 and the second equation by 3. "

Step-by-step explanation:

The first equation should be multiplied by 2 and the second equation by 3. This way the term in y in the first equation becomes "(2) (-3y) = -6y", and the term in y in the second equation becomes "(3) (2y) = 6y" so when added term by term, the term in "y" disappears.

That is represented by the first statement in your list of possible answers

Answer:

  B.  -1 ≤ y ≤ 1

Step-by-step explanation:

The range is the vertical extent of the function. Here, it appears the function is a sine function (y=sin(x)). The least value of the function is -1; the greatest value is +1. The function can take on any value between these extremes.

An appropriate description of the range is ...

  -1 ≤ y ≤ 1

_____

Comment on problem presentation

Please use the appropriate math symbol (≤) to represent "less than or equal to." If you cannot use the equation editor or symbols page provided by Brainly, you can use the combination <= to mean the same thing. "S" or "s" does not convey the same information.

Answer:

it's either x=75° and y =85°

or x= -75° and y= -85°

because it's below!

Answer:

x=95°

y=105°

Step-by-step explanation:

opposite angle of a cyclic triangle are supplementary.

x+85=180

x=180-85=95°

y+75=180

y=180-75=105°

Answer:

Total probability (first tile less than 7, second tile multiple of 4) = 2/21

Step-by-step explanation:

The question is not complete as the number of tile are not given. Howover, I could find the complete question on internet so I would solve for that. I hope it helps. (SEE THE ATTACHMENT)

You randomly choose a tile. Without replacing the first tile, you choose a second tile. Find the probability of the compound event. Write your answer as a fraction or percent rounded to the nearest tenth. THE PROBABILITY OF CHOOSING A NUMBER LESS THAN 7 AND THEN A MULTIPLE OF 4 IS?

As we can see in the picture that there are a total of 7 tiles, so n = 7

These tiles are numbered as 5, 6, 7, 8, 9, 10, 20

Tiles having a number less than 7 = 5, 6

No. of tiles having a number less than 7 = 2

So probability of choosing a number less than 7 is = 2/7

After picking one tile and without replacing it, total no. tiles become n = 6

Tile having multiples of 4 = 8, 20

No. of tiles having multiples of 4 = 2

Probability of choosing a second tile with multiple of 4 = 2/6

Total probability (first tile less than 7, second tile multiple of 4) = (2/7) · (2/6) = 4/42 = 2/21

Answer:

y+7= -6/5(x+3)

Step-by-step explanation:

Point slope form for a line is given by

y-y1 = m(x-x1) where m is the slope and (x1, y1) is a point on the line

y - -7 = -6/5(x - -3)

y+7= -6/5(x+3)

Answer:

24

Step-by-step explanation:

So basically for every 1 pound of chocolate 3 friends can get 1/3 pounds

now you want to find out how many for 8 pounds

You simply multiply the amount of friends for 1 pound (3) by the total amount he can distribute (8)

you get 24

Answer:

Scalene

Step-by-step explanation:

Because all of the sides are different lengths

answer:

A) The angles EA and AG are not congruent.

B) m∠F = 90°

m∠E + m∠F = 180°

90 ° + x = 180° (subtract)

x = 90°

C) Both  ∠HEF and  ∠AGF are congruent becuase they both have the same angle.  Try and measure it using a protractor.

Answer:

B. How many pets does each student in your class have?, C) How fast does each student in your PE class run the mile?, and A) How many inches tall is each person in your class?

Explanation:

These answers that I listed I would think would be correct because it’s saying which questions are statistical.

Answer:

6.3

Step-by-step explanation:

√6²+2²=√40= 6.3

Answer:

Distance between A and B is approximately 6.3 units

Step-by-step explanation:

We can use the Pythagorean Theorem to solve this question. Notice that the distance in between the two points (straight segment that joins both) can be identified to the "hypotenuse of a right angle triangle shown in the attached image. Such triangle has two legs that measure 2 units one of them and 6 units the other one.

The length of the associated hypotenuse is given then by:

[tex]distance=\sqrt{2^2+6^2}\\distance=\sqrt{40} \\distance=6.32455[/tex]

So this rounded to the nearest tenth is:

6.3 units

Answer:

52°

Step-by-step explanation:

By remote interior angle theorem of a triangle:

115° = 63° + x° ( x is the vertical angle of one interior angle of the triangle)

x° = 115° - 63°

x° = 52°

x = 52

Answer:

2 and .6.

4 and 8.

3 and

So the right answer is (7,-2)

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

y=2.5

Step-by-step explanation:

10=4y

4y=10

y=10/4

y=5/2

y=25/10

y=2.5

Answer:

Credit or Cooperative Union

Step-by-step explanation:

Lending institutions can be defined as institutions that provide financial support to people or individuals by making loans available to people who need them.

Lending Institutions can be privately owned and operated or it can be publicly (government) owned and operated. The loans that they make available to people come from the money deposited in such institutions by people or other institutions.

Some types of Lending institutions that we have are:

a) Credit ( Cooperative) Unions

b) Commercial banks

c) Online banks e.t.c.

The type of lending institution that s formed by a group of people who become its members and deposit their money with the institution and can take loans from the institution's available funds is called the CREDIT(COOPERATIVE) UNION.

Answer:

Midpoint: (1, -7/2)

Step-by-step explanation:

Midpoint formula is given. Simply plug in the numbers corresponding to the variables and you should get your answer.

Answer:

Step-by-step explanation:

[tex](9,2) . (-7,-9)\\x_{1} =9\\y_{1} =2\\x_{2} = -7\\y_{2}=-9\\ Midpoint =[\frac{x_{1}+x_{2} }{2} , \frac{y_{1}+y_{2} }{2}]\\M.P = [\frac{9+(-7)}{2} , \frac{2+(-9)}{2} ]\\M.P = [\frac{9-7}{2} , \frac{2-9}{2} ]\\M.P = [\frac{2}{2} , \frac{-7}{2} \\M.P = [1 , -7/2][/tex]

Answer:

You will pay 2550

Step-by-step explanation:

To find the discount, take the  3400 times the 25%

3400 * 25%

850

Subtract this from the original price

3400-850

2550

Answer:

[tex]2550 \: \: \: dollers[/tex]

Step-by-step explanation:

[tex]3400 \times \frac{25}{100} = 850 [/tex]

[tex]3400 - 850 = 2550[/tex]

You have to pay only 2550 dollars.

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

answer is the seconddd one

Answer:

the answer is d: x=-11/3

Answer:

Step-by-step explanation:

i think it is a circle

Answer:

Circle

Step-by-step explanation:

The equation for a circle is in the form (x - h)² + (y - v)² = r², where (h, v) is the center of the circle and r is the radius.

A circle with its center at the origin will have an equation that looks like x² + y² = r², which is the form this equation is in.

That's how we know this equation belongs to a circle!

Hope this helps :)

Answer:

Height: 48

Base: 34

Step-by-step explanation:

The formula for a triangle is 1/2(base)(height)

1/2(3x+10)(6x) = 816

18x² + 60x = 1632

18x² + 60x - 1632 = 0

Then, we use the Quadratic formula

x = (-60 ± √3600 + 117,504)/36

x =( -60 ± 348/36)

x = 288/36

x = 8

3(8) + 10

= 34

6(8) = 48

Therefore the dimensions are:

Height: 48

Base: 34

Answer:

Third graph down

Step-by-step explanation:

2x -6 ≥ 6(x-2)+8

Distribute

2x - 6≥6x -12+8

Combine like terms

2x - 6≥6x -4

Subtract 2x from each side

2x-6-2x ≥6x-2x-4

-6 ≥4x-12

Add 4 to each side

-6+4 ≥4x-4+4

-2 ≥4x

Divide by 4

-2/4 ≥4x/4

-1/2≥x

Closed circle at -1/2

Line going the the left

Answer:

I would say C.

Step-by-step explanation:

Answer:

Step-by-step explanation:

The pattern is the same as Fibonacci numbers i.e. sequence satisfy following reccurence relation:

[tex]a_n = a_{n - 1} + a_{n - 2}[/tex].

So we can continue this sequence very easily:

1, 5, 6, 11, 17, 28

The simplest pattern and the missing terms of the sequences: 1,5,6,11, 17, 28.

A number pattern is a pattern in a series of numbers that represents the common relationship between the numbers.

The pattern is the same as Fibonacci numbers i.e. sequence satisfies the following recurrence relation,

[tex]a_n = a_{n-1 }+ a_{n-2[/tex]

So we can continue this sequence

1, 5, 6, 11, 17, 28

Learn more about a number pattern:

brainly.com/question/14471389

#SPJ2