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Inga [223]
3 years ago
13

The quadratic function below represents a parabola that opens down. Which value could be the missing number in the equation ? Th

e missing coefficient could be ?

Mathematics
1 answer:
Effectus [21]3 years ago
6 0

Answer:

-4

Step-by-step explanation:

The direction of the parabola depends on the sign of the leading coefficient i.e. sign of the coefficient with the squared term.

Remember these two points for vertical parabola:

  • If the leading coefficient is positive the parabola will always open upwards
  • If the leading coefficient is negative the parabola will always open downwards

We are given that the parabola opens down. This means that the leading coefficient must be negative. Among the given options only one option contains a negative number i.e. -4.

Therefore, the missing coefficient could be -4

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Lucas has five buttons in a container. Each button is a different shape. There is a star, an oval, a hexagon, a circle, and a he
Shtirlitz [24]

A) Sample size of compound event = 25

B) New Sample size = 36.

What is Compound event?

A compound event is one that has more than one sample point. Simple events are less complicated than compound events. These occurrences entail the possibility of multiple occurrences. One is the probability of all possible outcomes of a compound event.

An event that consists of two or more simple events is called a compound event. Simple events are those that can only have one result, whereas complex events can have a variety of distinct results. Compound events can consist of several independent or dependent occurrences, where the result of one event has no bearing on the likelihood of the other.

Given,

Number of buttons in a container = 5

Lucas picks one button, replaces it and then picks another.

Therefore,

Sample size of the compound event

                 n = 5\times5

                 n  = 25\\

Now, one more button is added in the container and in total there are 6 buttons.

Lucas repeats the same process again and hence,

Sample size of the new compound event will be,

                  n = 6\times6

                  n = 36

Full Question is - Lucas has five buttons in a container. Each button is a different shape. There is a star, an oval, a hexagon, a circle, and a heart. He picks one button, replaces it, and then picks another button. The sample size for this compound event is  ___  Suppose one square-shaped button is added to the container. If Lucas repeats the same picking process, then the sample size would be ____

To know more about compound event.......

brainly.com/question/12314211

#SPJ4

4 0
2 years ago
Help please please please
nalin [4]

Answer:

here's your answer buddy

Step-by-step explanation:

In LMN - LMO

LM=LM {common} S

NL=MO { given} S

LO=MN {given} S

therefore by SSS criteria we can say that triangle LMN=LMO

the above mentioned answer is 100% correct

so please don't doubt

mark as brainliest if you wish

thank you

8 0
3 years ago
What 2 numbers add up to 37 and multiply to -210?
dedylja [7]
Let us assume the two unknown numbers to be "x" and "y".
Then
x + y = 37
And
xy = - 210
x = - 210/y
Now let us put the value of "x" in the first equation, we get
x + y = 37
- (210/y) + y = 37
y^2 - 210 = 37y
y^2 - 37y - 210 = 0
y^2 - 42y + 5y - 210 = 0
y(y - 42) + 5(y - 42) = 0
(y - 42)(y + 5) = 0
So when
y - 42 = 0
y = 42
Then
x = -(210/42)
   = - 5
Again when
y + 5 = 0
y = -5
Then
x = 42
So the two unknown numbers are 42 and -5. I hope the procedure is clear enough for you to understand.
7 0
3 years ago
Y = -x - 3 y = 5/2 x + 4 solve Solve each system by graphing. graph
Debora [2.8K]

Answer:

okay so I'm not so good at math but... if you go to desmos. com and put that in it will graph it for you.

4 0
3 years ago
What is the value of x in the equation −x = 4 − 3x + 6?<br><br> 5<br> 10<br> −5<br> −10
My name is Ann [436]
Hey!


The first step to solving this equation would be to rearrange it. It's better to rearrange it so that it is easier to solve.

<em>Original Equation :</em>
<span> −x = 4 − 3x + 6

<em>New Equation {Changed by Rearranging} :</em>
</span>-x = -3x + 4 + 6

Next we would group our like terms.
We can see that both 4 and 6 are whole numbers and can be added easily, so we'll start by grouping those like terms first.

<em>Old Equation :</em>
-x = -3x + 4 + 6

<span><em>New Equation {Created by Grouping Like Terms} :</em>
-x = </span><span>-3x + 10

Now we add 3x to both sides to get rid of the -3x on the left side of the equation.

<em>Old Equation :</em>
</span>-x = -3x + 10

<em>New Equation {Changed by adding 3x to Both Sides} :</em>
-2x = 10

Almost done! Our equation is one step closer to being solved.
Next, we will divide both sides by 10 to get x on its own.

<em>Old Equation :</em>
-2x = 10

<em>New Equation :</em>
x = 5

Our equation can now no longer be simplified any farther. Therefore, it is officially solved!

<span><em>The value of x in the equation −x = 4 − 3x + 6 is </em> x = 5.

Hope I helped!


- Lindsey Frazier ♥</span>
3 0
4 years ago
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