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forsale [732]
3 years ago
7

11.2.3 Quiz: Completing the Square

Mathematics
1 answer:
Allushta [10]3 years ago
3 0

Answer:

A. The zeros is at: 3 \±\sqrt 2

B. The zeros are the hot dog prices that give $0.00 profit (no profit)

Step-by-step explanation:

Given

y = -2(x - 3)^2 + 4

Solving (a): The zeros of the function

To do this, we equate y to 0.

y = 0

So, we have:

-2(x - 3)^2 + 4 =0

Subtract 4 from both sides

-2(x - 3)^2 + 4 -4=0 -4

-2(x - 3)^2 = -4

Divide both sides by -2

(x - 3)^2 = 2

Take the square root of both sides

(x - 3) = \sqrt 2

Add 3 to both sides

x  =3 \±\sqrt 2

<em>Option (b) interprets the zeros</em>

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Given: Q = 7m 3n, R = 11 - 2m, S = n 5, and T = -m - 3n 8. Simplify R - S T. M - 2n - 2 -3m - 4n 14 3m - 4n 14 -m 2n - 2.
ziro4ka [17]

To solve the algebraic expression, add or subtract the variables with same power of variable.

The result of the given problem after simplifying is,

y=7m+n-6

<h3>How to write algebraic expression? </h3>

Algebraic expression are the expression which consist the variables, coefficients of variables and constants.

The algebraic expression are used represent the general problem in the mathematical way to solve them.

To solve the algebraic expression, add or subtract the variables with same power of variable.

Given information-

The given numbers are,

Q=7m+3n\\R=11-2m\\S=n+5\\T=-3-3n

All the four number given in the form of unknown number m and n.

The result, need to be find is,

R-S+T+M

Let the result of above expression is y. Thus,

y=R-S+T+M

Put the values to solve it further,

y=(7m+3n)-(11-2m)+(n+5)+(-m-3n)

Solve it further by open the bracket as,

y=7m+3n-11+2m+n+5-m-3n\\y=7m+2m-m+3n+n-3n-11+5\\y=7m+n-6

Hence the result of the given problem after simplifying is,

y=7m+n-6

Learn more about the algebraic expression here;

brainly.com/question/2164351

3 0
2 years ago
judith wants to buy her mother flowers. juidth earn $4 a week doing chores. If each flowe cost $2, how many flowers can judith b
g100num [7]
3x4=$12   $12/$2=6

Judith can buy 6 flowers for her mom.
4 0
3 years ago
Read 2 more answers
Help please, I will give brain list
lara [203]
A=WL
115=5L
Divide by 5
23=L
5 0
3 years ago
Dana draws a triangle with one angle that has a measure of 40∘.
OLEGan [10]

Answer:

140°

Step-by-step explanation:

<u>Given:</u>

Dana draws a triangle with one angle that has a measure of 40∘.

<u>Question asked:</u>

What is the measure of the angle’s adjacent exterior angle?

Solution:

<u>As we know:</u>

<u><em>Sum of the adjacent interior and exterior angles is 180°.</em></u>

Interior angle = 40°

Adjacent exterior angle = ?

Interior angle + Adjacent exterior angle = 180°

40° + Adjacent exterior angle = 180°

<u>By subtracting both sides by 40°</u>

40° - 40° + Adjacent exterior angle = 180° - 40°

Adjacent exterior angle = 140°

Therefore, the measure of the angle’s adjacent exterior angle will be 140°.

4 0
3 years ago
This isnt urgent but i need an answer, i will give the person who answers correctly brainliest, please try
SSSSS [86.1K]

Answer:  3, 5, 7

Step-by-step explanation:

There is a "trick" to determine divisibility by 3: if the sum of the digits is divisible by 3, the number is divisible by 3.

3 + 1 + 5 = 9 which is a multiple of 3, so 315 is divisible by 3.

It works for 9 also. since the sum of the digits is 9, 315 is divisible by 9.

Divisibility by 5: any number that has the units digit 5 or 0 is divisible by 5.

For 7, I just tried it  315÷7= 45

Only even numbers are divisible by 2.

If a 3-digit number is divisible by 11, the middle digit will be the sum of the first and last digits.   (That is not the case for 315)  But 385 is divisible by 11, also 495, 253, and many others you can try for fun.

8 0
3 years ago
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