Help pleaseeeee help ;))

Answer:

C

Step-by-step explanation:

We want to determine the vertex of the quadratic equation:

[tex]\displaystyle y = -x^2 + 2x + 1[/tex]

Recall that the vertex is given by the formulas:

[tex]\displaystyle \text{Vertex} = \left(-\frac{b}{2a}, f\left(-\frac{b}{2a}\right)\right)[/tex]

In this case, a = -1, b = 2, and c = 1.

Determine the x-coordinate of the vertex:

[tex]\displaystyle x = -\frac{(2)}{2(-1)} = 1[/tex]

To determine the y-coordinate, evaluate the function at x = 1:

[tex]\displaystyle \begin{aligned} y(1)&= -(1)^2 + 2(1) + 1 \\ &= 2\end{aligned}[/tex]

In conclusion, the vertex of the quadratic equation is (1, 2).

Hence, our answer is C.

Answer:

B

Step-by-step explanation:

4x - y = 4*3 - 3 = 12 - 3 = 9

2y + x = 2*3 + 3 = 6 + 3 = 9

(4x - y) / (2y + x ) = 9/9 = 1

Hii varsha

Your intro please

Answer:

$38

Step-by-step explanation:

6 cans is $12

1 can is 12/6 = $2

$2 x 19 = $38

Alternative way:

19/6 = 3 1/6

3 1/6 * 12 = 36 + 2 = 38

If my answer is incorrect, pls correct me!

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-Chetan K

Answer:

p = m + n + x

Step-by-step explanation:

x + m = p - n

x + m + n = p

p = m + n + x

Answer:

67

Step-by-step explanation:

If you are looking for x, or blank in this case, you add 67 to -67.

this equals 0.

-67+67=0.

Hi! I'm happy to help!

To solve this, we first have to understand the terms and the way they arrange the equation.

First, we have the difference of ____and_____=. (the "is" after 4 refers to equals)

We will write this as:

_______-_______= ,because difference means subtraction.

For our first blank, we have 3 times a number. Because we do not know this number, we will use a variable.(n) 3 times a number is 3 multiplied by a number. We can just write 3n, because it represent multiplication.

3n-______=

Now, we see the part of the equation after the "and". We just see 4, so we can insert that here:

3n-4=

Now, we see what is shown after the "is".

We just have -19, so we can insert that here:

3n-4=-19

Now, let's solve (not sure if I need to):

To solve for n, we have to isolate it on one side of the equation. To do this, let's cancel out the -4 on the left side of the equation by adding 4 to both sides:

3n=-15

From here, we need to get rid of the 3 next to the n by dividing both sides by 3:

n=-5

So, we write it as 3n-4=-19, and n=-5.

I hope this was helpful, keep learning! :D

Answer:

6

Step-by-step explanation:

2:5, 4:10, 6:15

The proportion is solved and the number of games won by Ollie and Noelle over the weekend are 10 and 25 respectively

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the proportion be represented as A

Now , the value of A is

Ollie won 2 games for every 5 games that Noelle won

So , the proportion is 2 : 5

Now , when Noelle won 10 games , Ollie won 4 games

And , when Noelle won 15 games , Ollie won 6 games

when Noelle won 20 games , Ollie won 8 games

when Noelle won 25 games , Ollie won 10 games

So , the difference of their winnings is now = 15 games

Hence , the number of games won by Ollie and Noelle over the weekend are 10 and 25 respectively

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Answer:

-24 degrees F

Step-by-step explanation:

12+7+5

if the temperature kept on dropping, then you would have just added them all up.

Answer: (-7,3)

Step-by-step explanation: brainly plz

Answer:

(-7, 3)

Step-by-step explanation:

(-7, 3)

since your going over the x axis the x values stays the same

Answer:

Step-by-step explanation:

cool? i,dk if this is a question lol

You take a pen or something that can produce writing then poke the paper at a place. That place is now a plotted point with [tex](x,y)[/tex] coordinates in your notebook.

Hope this helps :)

Answer:

(3x - 14) = (2x+ 10) { Because the angles are vertically opposite to each other}

3x-2x= 14+10

x=24

Answer:

$2.77 per bar sold

Step-by-step explanation:

Hi there!

We're given that selling 9 ice cream bars could make the truck driver $24.93. To find how much he'd make per bar sold, divide $24.93 by 9 ice cream bars:

24.93 ÷ 9 = 2.77

Therefore, the truck driver would make $2.77 per bar sold.

We could also find this answer using the given equation, y=kx.

y=kx

Let y equal the earnings. Let x equal the number of ice cream bars sold. Let k equal how much the driver would make per bar sold.

24.93=k(9)

24.93=9k

x=2.77

I hope this helps!

Answer:

This is an example but there you can also find the formula

Step-by-step explanation:

Answer:

8x+11=14x_1

14x_8x=11+1

6x=12

x=12/6

x=2

[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

Given, K is the midpoint of JL. So, JK = KL.

________

JL = JK + KL (given that K is the midpoint of JL)

JL = (8x + 11) + (14x - 1)

________

[tex] \large \boxed{\mathfrak{Steps} \downarrow}[/tex]

[tex] \sf( 8 x + 11 ) + ( 14 x - 1 )[/tex]

Combine 8x and 14x to get 22x.

[tex] \sf \: 22x+11-1 [/tex]

Subtract 1 from 11 to get 10.

[tex] \boxed{ \boxed{ \bf22x+10 }}[/tex]

________

Also given that, JK = KL.

So, (8x + 11) = (14x - 1)

⇨ (8x + 11) = (14x - 1)

⇨ 8x + 11 = 14x - 1

⇨ 11 + 1 = 14x - 8x

⇨ 12 = 6x

⇨ x = 12 / 6

⇨ [tex] \boxed{ \boxed{ \bf \: x= 2 }}[/tex]

________

Now, value of JL will be,

JL = 22x + 10

Substitute the value of x.

JL = 22(2) + 10

JL = 44 + 10

[tex] \boxed{ \boxed{ \bf\: JL = 50 }}[/tex]

⇨ So, the value of JL will be 50 units.

Answer:

JT = 29

Step-by-step explanation:

CT=CJ+JT

69= (4x+8)+ ( 3x+5)

69= 7x +13

7x= 69-13

7x= 56

x=56/7

x=8

JT=3x+5=3(8)+5= 24+5=29

I hope I helped you^_^

Step-by-step explanation:

factors of 42 are

1, 2 ,3, 6,7,14,21,42

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I use a app on my phone called (photòmath) and it helps so much.

We need to find the yards of ribbon that Elsa bought with her debit card.

The amount of ribbon that Elsa bought was 31 yards.

Initial amount which is present on the card is [tex]\$15[/tex]

Amount left after spending is [tex]\$12.83[/tex]

Amount spent on ribbon is [tex]15-12.3=\$2.17[/tex]

Converting to cents

[tex]2.17\times 100=217\ \text{cents}[/tex]

Cost of one yard of ribbon is [tex]7\ \text{cents}[/tex]

[tex]1\ \text{yd}=7\ \text{cents}\\\Rightarrow 1\ \text{cent}=\dfrac{1}{7}\ \text{yd}\\\Rightarrow 217\ \text{cents}=\dfrac{217}{7}=31\ \text{yd}[/tex]

The yards of ribbon that Elsa bought is [tex]31\ \text{yards}[/tex].

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Answer:

Hey

Step-by-step explanation:

Hey did you find the answers to this? i really need it. im desperate!

1. The market is said to be in disequilibrium because there is a shortage of apartments on the market

2. The equilibrium quantity of the good or service will decrease if  demand decreases and supply decreases

3. The equilibrium price for this market is $20

4. It can be said that at a price level of $100 there is a  a shortage of 0.4 million units

Equilibrium is the point at which quantity demanded equal quantity supplied

The price at this point is referred to as the equilibrium price.

Above equilibrium, there is a surplus - quantity supplied exceeds quantity demanded. As a result of the surplus, price would fall until equilibrium is reached.

Below equilibrium, there is a shortage - quantity demanded exceeds quantity supplied. As a result of the shortage, price would rise until equilibrium is reached.

A decrease in demand would lead to a leftward shift of the demand curve. As a result, quantity and price decreases.  A decrease in supply would lead to a leftward shift of the supply curve. This leads to a decrease in quantity and an increase in price. Taking these two effect together, equilibrium quantity would decrease and there would be an indeterminate effect on equilibrium price

Equilibrium price is $20. This is because this is the price at which quantity demanded exceeds quantity supplied

There is a shortage because quantity supplied is less than quantity demanded

Shortage = 5.2 million - 4.8 million = 0.4 million

A similar question was solved here : https://brainly.com/question/13463225?referrer=searchResults

Answer:

x = 10, so non-viable.

Explanation:

[tex]2(12+9)=42[/tex]

[tex]2(10+9)=38[/tex]

Answer:

x = wa - wb

Step-by-step explanation:

[tex]w=\frac{x}{a-b}\\\\w(a-b)=\frac{x}{a-b}(a-b)\\\\wa-wb=x[/tex]

The expression can be written in terms of w, a, and b after making the subject as x the expression is w(a - b) = x.

It is defined as the combination of constants and variables with mathematical operators.

It is given that:

The expression is:

w = x/(a - b)

To solve the above expression in terms of w, a, and b make the subject as x.

Subtract by km on both sides:

w = x/(a - b)

On cross multiplication:

w(a - b) = x

As we know, the arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

Thus, the expression can be written in terms of w, a, and b after making the subject as x the expression is w(a - b) = x.

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Answer:

31 yards

Step-by-step explanation:

If she has $12.83 left, that means she spent $2.17 out of the $15

15 - 12.83 = 2.17

One cent is .01 of a dollar

So that would be $0.07 per yard

To find the number of yards, we need to divide the total amount she spent by the price per yard.

2.17 ÷ 0.07 = 31

Answer:

[tex]6 \frac{350}{1000}[/tex] Is the answer, if you want it simplified then, [tex]6 \frac{7}{20}[/tex]

Step-by-step explanation:

Answer:

[tex]{ \sf{ \underline{answer \: is \: \: 6 \frac{7}{20} }}}[/tex]

Step-by-step explanation:

Hope you got the idea in previous answer.

[tex]6.350 = \frac{6350}{1000} [/tex]

reduce the fraction by 10:

[tex] = \frac{6350 \div 10}{1000 \div 10} \\ \\ = \frac{635}{100} [/tex]

then reduce it by 5:

[tex] = \frac{635 \div 5}{100 \div 5} \\ \\ = \frac{127}{20} [/tex]

in mixed fraction mode:

[tex] = 6 \frac{7}{20} [/tex]