1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olasank [31]
2 years ago
5

Which quadratic equation has a vertex at (4, 2)?

Mathematics
1 answer:
kenny6666 [7]2 years ago
7 0

Answer:

use mathaway or algebra calculator they help alot

You might be interested in
You purchase a lottery ticket for $2 from a grocery store. There are a total of 100,000 tickets in circulation. The grand prize
FrozenT [24]
I'm pretty sure its B but I would double check before you put the answer in :)
8 0
2 years ago
Can someone help me with this question please !
RoseWind [281]

Answer:

a) A triangle which the angles ratio is 1 : 2 : 3 is a 30º - 60º - 90º right triangle.

b) The shortest side is opposite to the shortest angle. So, we can calculate it using sin 30º.

$\text{sin}(30\º)=\frac{\text{Opposite side to x}}{19} $

$\frac{1}{2} =\frac{\text{Opposite side to x}}{19} $

$\text{Opposite side to x}= 9.5$

3 0
3 years ago
Read 2 more answers
Which operation must you use to find the water temperature after the submarine’s final dive? Which word or words in the problem
ad-work [718]

Answer:

the temperature drops 2 degrees F

Step-by-step explanation:

3 0
3 years ago
Given: ⅓ (18x + 27) = 81 Prove: x = 12
sasho [114]

Answer:

Firstly, rewrite the equation:

⅓ (18 + 27) = 81

Substitute x for the given number of it's supposed equivalent.

In this case x = 12.

⅓ (18(12) + 27) = 81

Solve using PEMDAS and simplify what is in the parenthesis first. Then, multiply.

(18 x 12) + 27 = 243

Now, solving using PEMDAS, multiply the total of what you got that was originally in the parenthesis by ⅓ .

⅓ (243) = 81

When you multiple these number they are equivalent to 81.

81 = 81

Since the equation given, when substituted x for 12, is equivalent to 81, this proves that substituting x for 12 makes this equation true.

4 0
3 years ago
Drina wrote the system of linear equations below.
zalisa [80]

Answer:

Option c, A square matrix

Step-by-step explanation:

Given system of linear equations are

3x-2y=-2\hfill(1)

7x+3y=26\hfill(2)

-x-11y=46\hfill(3)

Now to find the type of matrix can be formed by using this system

of equations

From the given system of linear equations we can form a matrix

Let A be a matrix

A matrix can be written by

A=co-efficient of x of 1st linear equation    co-efficient of y of 1st linear equation   constant of 1st terms linear equation

co-efficient of x of 2st linear equation   co-efficient of y of 2st linear equation  constant of 2st terms linear equation

co-efficient of x of 3st linear equation   co-efficient of y of 3st linear equation    constant of 3st terms linear equation           3\times 3

which is a 3\times 3 matrix.

Therefore A can be written as

A= \left[\begin{array}{lll}3&-2&-2\\7&3&26\\-1&-11&46\end{array}\right] 3\times 3

Matrix "A" is a 3\times3 matrix so that it has 3 rows and 3 columns

A square matrix has equal rows and equal columns

Since matrix "A" has equal rows and columns Therefore it must be a square matrix

Therefore the given system of linear equation forms a square matrix

7 0
2 years ago
Read 2 more answers
Other questions:
  • John has to pay $7.00 admission for the skating rink and $1.50 per hour rollerblades. how many hours can he skate for $19. can y
    6·1 answer
  • bridget makes 50 cookies to handout at school.if she has handed out 20 cookies,what percent does she have left​
    9·1 answer
  • A force of 203 N is used to move a television 2.3 m. How much work is done?
    13·1 answer
  • Suppose you had 450$ in your account. What percent of money did you spend? Round your answer to the nearest percent
    8·1 answer
  • If a 5 minute shower used 12 gallons of water how many gallons of water would a one minute Shower use
    8·1 answer
  • How much money is in joes savings account after 3 years if he deposited $100 at the beginning of the year and the account pays 3
    8·1 answer
  • Predict the number of chocolate chips in nine pancakes
    10·1 answer
  • Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and common difference, d, are given.
    9·1 answer
  • Need an answer, please need an answer, please​
    7·2 answers
  • How i get the y-intercept
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!