What are the key features of a Quadratic function? Give two ways you can solve Quadratic equations.

Answers

Answer 1

Answer:

1.Formula method(almighty formula)

2.Completing the square method

Step-by-step explanation:

Key features are:

1.They have coefficients

2.Roots


Related Questions

Do something funny........................................

Answers

Answer:

wha- okay.. umm Do something funny.......................

☁️ Answer ☁️

Here:

Have a nice day noona!~  ̄▽ ̄❤️

Triangle Inequalities part 2 help please

Answers

Answer:

The perimeter can not be 26 inches

Step-by-step explanation:

Given

[tex]Side\ 1 =19[/tex]

[tex]Side\ 2 =16[/tex]

Required

Is a perimeter of 26 possible?

First, calculate the possible side 3

[tex]Side\ 3 = Perimeter - Side\ 1 - Side\ 2[/tex]

[tex]Side\ 3 = 26 - 16 - 19[/tex]

[tex]Side\ 3 = -9[/tex]

The side length can not be negative.

So, the perimeter can not 26 inches

Solve x - 9 = 3 + y for y.

Answers

Step-by-step explanation:

[tex]x - 9 - 3 = y \\ y = x - 12[/tex]

The given equation solved for y as x-12.

The given equation is x-9=3+y.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

The given equation can be solved as follows:

x-9=3+y

⇒y=x-9-3

⇒y=x-12

Therefore, the given equation solved for y as x-12.

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which expression is equalivate to x+y+x+y+3(y + 5)

Answers

Answer:

5y + 2x + 15

Step-by-step explanation:

x+y+x+y+3(y + 5)

Open the bracket.

x + y + x + y + 3y + 15

Bring the like terms together and simplify them.

3y + y + y + x + x + 15

= 5y + 2x + 15

Is(x+6)>8 is equation (with variable) give reason for your answer​

Answers

Answer:

it's a non equation if x=2 is given then we get a proper line of the equation bur x is greater than 2 the we find a region that go far from origin

Pls help! How do i Graph 4y = -3x - 8. explain the steps

Answers

Answer:

Step-by-step explanation:

to make a graph, when you have the equations, as you do,  just make up a table of some x coordinates,  you get to choose which ever ones you want so pick some easy ones,   like - 2,-1 , 0, 1, 2  .. then put each of those numbers into your equations as the x ... one at a time, ofc,   and see what you get out for y.  then you have the y coordinate of your table  

when you have your table then you can plot each of the points,  if you use the Demos  web site graphing tool you can make the graph on your computer , or use a graph paper.    

:)

What is the value of the expression two less than six times the difference of a number and five" when n = 9?
022
016
O 32
31

Answers

Answer:

22

Step-by-step explanation:

6(n - 5) - 2

6(9 - 5) - 2

6(4) - 2

24 - 2

22

Answer:

22

Step-by-step explanation:

Because it is the "Correct Answer"

Pls help...................

Answers

First one b ≤ 9 good luck

Kendall has eaten 74/100 of her sandwich. Parker ate 5/10 of his sandwich. How much more of a sandwich did Kendall eat than Parker?

Answers

Answer: 24/100 more

Step-by-step explanation:

Answer:

kendall ate 24/100 more than parker

Please help me (Trig) and show your work in the answer

Answers

Answer:

30.24 m

Step-by-step explanation:

Find the length of one of the braces b, use sine:

sin 55° = 6.2 / bb = 6.2 / sin 55° b = 7.56 m

Total length:

7.56*4 = 30.24 m

Which proportion can be used to find 20% of 17?​

Answers

Answer:

8.5

Step-by-step explanation:

Convert the percent to a decimal.

20% ÷ 100 = 0.2.

X = 17 ÷ 0.2.

X = 8.5

So 20% of 17 is 8.5.

you have 4 ice cubes in your cup of lemonade. each ice cube has a length of 7 3/4 cm, a width of 4 5/8 cm and a height if 2 4/5 cm. what is the total volume of all ice cubes? explain how you used math to come to your decision.​

Answers

Answer:

how is this Spanish

Step-by-step explanation:

Question 60/62 (3.p.)
KAH
ht
w
2011
Solve and choose the correct answer.
A water tank is in the form of a cylinder whose radiusis 2 m and length is
3.5 m. The quantity of water in litres that can be stored in the tank is
..​

Answers

Answer:

Capacity of tank = 44,000 l

Step-by-step explanation:

Given:

Height of tank = 3.5 m

Radius = 2 m

Find:

Capacity of tank

Computation:

Volume of cylinder = πr²h

Volume of cylinder = (22/7)(2)²(3.5)

Volume of cylinder = 44 m³

1m³ = 1000 l

So,

Capacity of tank = 44  x 1,000

Capacity of tank = 44,000 l

Help! I need to answer this on edge

Answers

your answer will be A

The function y=3x is growing slower than y=3^x

Step-by-step explanation:

hope it helps you

have a great day!!

The price of an item has been reduced by 40%. The original price was $35. What is the price of the item now? ​

Answers

Answer:

$21 is the correct answer

Answer:

Step-by-step explanation:

First we have to find 1 percent of 35, and then we will multiply it by 40. So: 35/100 = 0.35

0.35 (40) = 14

35 - 14 = 21

So, the discounted price is now $21.

A fraction is shown. 8/16 Which expression is equivalent to this fraction?

Answers

Answer:

1/2

Step-by-step explanation:

a shelter had 4 spaniel puppies and 6 beagle puppies. Jack adopted 1/2 of the spaniel puppies, and carmen adopted 1/2 of the beagle puppies. who adopted more puppies? How do you know?

Answers

Answer:

If Jack adopted half of the spaniel puppies, and there are 4 spaniel puppies, that means that he adopted 2 puppies.

If Carmen adopted half of the beagle puppies, and there are 6 beagle puppies, then Carmen adopted 3 puppies. This means that Carmen adopted more puppies than Jack.

Step-by-step explanation:

1/2 of 4 = 2

1/2 of 6 = 3

Carmen adopted more puppies that is 3 and Jack adopted 2 puppies.

What is the fraction?

In Mathematics, fractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing.

Given that, a shelter had 4 spaniel puppies and 6 beagle puppies.

Jack adopted 1/2 of the spaniel puppies.

That is, 1/2 ×4 =2

Carmen adopted 1/2 of the beagle puppies.

That is, 1/2 ×6 =3

Therefore, Carmen adopted more puppies that is 3 and Jack adopted 2 puppies.

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A certain disease has an incidence rate of 0.7%. If the false negative rate is 5% and the false positive rate is
3%, compute the probability that a person who tests positive actually has the disease.
Give your answer accurate to at least 3 decimal places

Answers

I think it will be 3.7%hope it’ works

In a certain city district, the need for money to buy drugs is stated as the reason for 75% of all thefts. Find the probability that among the next 5 theft cases reported in this district, (a) exactly 2 resulted from the need for money to buy drugs; (b) at most 3 resulted from the need for money to buy drugs.

Answers

Answer:

a) 0.0879 = 8.79% probability that among the next 5 theft cases reported in this district, exactly 2 resulted from the need for money to buy drugs.

b) 0.3672 = 36.72% probability that among the next 5 theft cases reported in this district, at most 3 resulted from the need for money to buy drugs.

Step-by-step explanation:

For each theft, there are only two possible outcomes. Either it was motivated by a need to buy drugs, or it wasnt. Thefts are independent, which means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

In a certain city district, the need for money to buy drugs is stated as the reason for 75% of all thefts.

This means that [tex]p = 0.75[/tex]

Next 5 theft cases

This means that [tex]n = 5[/tex]

(a) exactly 2 resulted from the need for money to buy drugs;

This is P(X = 2).

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 2) = C_{5,2}.(0.75)^{2}.(0.25)^{3} = 0.0879[/tex]

0.0879 = 8.79% probability that among the next 5 theft cases reported in this district, exactly 2 resulted from the need for money to buy drugs.

(b) at most 3 resulted from the need for money to buy drugs.

This is

[tex]P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)[/tex]

In which

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{5,0}.(0.75)^{0}.(0.25)^{5} = 0.0010[/tex]

[tex]P(X = 1) = C_{5,1}.(0.75)^{1}.(0.25)^{4} = 0.0146[/tex]

[tex]P(X = 2) = C_{5,2}.(0.75)^{2}.(0.25)^{3} = 0.0879[/tex]

[tex]P(X = 3) = C_{5,3}.(0.75)^{3}.(0.25)^{2} = 0.2637[/tex]

[tex]P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0010 + 0.0146 + 0.0879 + 0.2637 = 0.3672[/tex]

0.3672 = 36.72% probability that among the next 5 theft cases reported in this district, at most 3 resulted from the need for money to buy drugs.

Find the missing length of the triangle.

Answers

Answer:

89

Step-by-step explanation:

Hypotenuse = sqrt[ (Leg a)2 + (Leg b)2 ]

Hypotenuse = sqrt[ (39)2 + (80)2 ]

Hypotenuse = sqrt[ 1521 + 6400 ]

Hypotenuse = sqrt[ 7921 ]

Hypotenuse = 89

Answer:

45 is your answer c=45 13

GOD GIVE ME STRENGTH MATH REALLY BE TESTING ME

Answers

Answer: the answer is 162

Step-by-step explanation: good luck with your math test I hope you get a good grade

need help can't figure it out​

Answers

Answer:

415

Step-by-step explanation:

which property justifies the statement below?
a(2b+c)=a(c+2b)

a. commutative property of addition
b. commutative property of multiplication
c. associative property of addition
d. distributive property

Answers

a

asta e raspunsul

gyyy

Please help- will give brainlist

Answers

I THINK it’s 33 because the other side is 41° and the other angle is the same forcept in this form ( x + 8 ) so i subtracted 8 from 41.

Which is proportional

Answers

Answer:

B

Step-by-step explanation:

It goes up the same amount ($0.75) for every bar you get.

Divide the given polynomial by the given monomial.​

Answers

Answer:

Here are the answers. Need to have 20 characters for answer. Phew

Lea is making a mosaic picture that is 3/4 foot tall and 11/12 foot wide what is the area of her mosaic

Answers

Not enough info. But assuming it’s a rectangular, area = length * width
3/4*11/12 = 33/48 = 11/16 square feet

Where are white blue and red boat in the Marina three fourths of the boats in the Marina are white for seventh of the remaining boats are blueAnd the rest are red if there are nine boats how many boats are in the Marina?

Answers

Answer:

28

Step-by-step explanation:

Here is the complete question used in answering this question :

Three-fourths of the boats in the marina are white. 4/7 of the remaining boats are blue , and the rest are red . If there are 9red boats, how many boats are in the marina?

We first have to determine the fraction of the boats that are red

1 - ([tex]\frac{3}{4}[/tex] + [tex]\frac{4}{7}[/tex])

1 - [tex]\frac{21 + 16}{28}[/tex]

1 - [tex]\frac{37}{28}[/tex]

1 - 1[tex]\frac{9}{28}[/tex]

= 9/28

so, 9/28 of the boats are red

let b represent the total number of boats

9/28 x b = 9

to find b, divide both sides of the equation by 28/9

b = 28

Mr. Robinson has raised $900 for his St. Baldricks campaign to fund childhood cancer research. This is 60% of his fundraising goal. What is Mr. Robinson's fundraising goal? pls give answer asap! :)

Answers

Answer:

1500

Step-by-step explanation:

STEP 1 900 = 60% × Y

STEP 2 900 =

60

100

× Y

Multiplying both sides by 100 and dividing both sides of the equation by 60 we will arrive at:

STEP 3 Y = 900 ×

100

60

STEP 4 Y = 900 × 100 ÷ 60

STEP 5 Y = 1500

It 1500 I hope it helps

Without multiplying the numbers in each box, explain which box has the
greater value
Box A
Box B

Answers

Answer: A

Step-by-step explanation:

Box A has a greater value than Box B. Expression of box A on being solved will result in a bigger value than that of box B.

Expression, in mathematics, is a combination of numbers, variables, functions, etc in a meaningful way.

Without multiplying, it is needed to compare both expressions.

As in the operation 'multiplication', numbers can interchange their position around the symbol '×', so, changing places of 4 and 8 in the numerator of the expression of box A,

Box A: [tex]\dfrac{8}{5} \times \dfrac{4}{9}[/tex].

The first fractions in both expressions are the same now in both boxes, so the expression having a bigger second expression will have the greater value.

To compare the second terms of both expressions, make the denominator equal:

Box A: [tex]\dfrac{8}{9} = \dfrac{8}{9} \times\dfrac{2}{2} = \dfrac{16}{18}[/tex]

Box B: [tex]\dfrac{1}{2} =\dfrac{1}{2} \times \dfrac{9}{9} = \dfrac{9}{18}[/tex]

Since, [tex]\dfrac{16}{18}\geq \dfrac{9}{18}[/tex] as [tex]16 \geq 9[/tex],

Therefore, the expression in Box A is greater than that of Box B.

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The complete question is as follows:

Without multiplying the numbers in each box, explain which box has the greater value

Box A: [tex]\dfrac{4}{5} \times \dfrac{8}{9}[/tex]

Box B: [tex]\dfrac{8}{5} \times \dfrac{1}{2}[/tex].

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