Kim throws a stone off a bridge into a river below. The
stone's height (in meters above the water ) X seconds after
she threw it, is modeled by
h (t) = - 5t2 + 20t + 60

Answer:

your answer would be C, because the probability is close enough to 1

To solve this problem, let's first calculate the probabilities for each part of the event separately Therefore, the answer is option C: Yes, because the probability is close enough to 1..

Rolling a number less than 6: Since the die is a six-sided die, there are 5 numbers less than 6 (1, 2, 3, 4, 5). Thus, the probability of rolling a number less than 6 is[tex]5/6.[/tex] Spinner landing on blue: The spinner shown is equally likely to land on each color, and there are 5 colors in total. Therefore, the probability of the spinner landing on blue is 1/5.

To find the probability of both events happening together, we multiply the individual probabilities: [tex](5/6) * (1/5) = 1/6[/tex] So, the probability of rolling a number less than 6 and the spinner landing on blue is [tex]1/6[/tex]or approximately [tex]0.167[/tex] when rounded to three decimal places.

Now, to determine if the event can be considered unusual, we need to consider the context in which the event occurs. If there are generally many occurrences of this event and the probability is significantly lower than what would be expected, then it can be considered unusual.

However, if this event is infrequent or not significantly different from what is expected, it would not be considered unusual. In this case, since the probability of the event is relatively low (1/6), we can consider the event as unusual.

Hence the correct option is C.

To know more about probabilities visit:

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Step-by-step explanation:

For a quadratic expression ax²+bx + c = 0

The discriminant D = b²-4ac

Given the following quadratic equation;

x^2 - 6x-27 = 0

a = 1, b = -6, c = -27

D = (-6)²-4(-27)

D = 36+108

D = 144

Hence the discriminant is 144

For the roots;

x = -b±√D/2a

x = 6±√144/2

x = 6±12/2

x = 18/2 and -6/2

x = 9 and -3

For the expression x2 - 25 = 0

a = 1, b = 0 and c = -25

D = (0)²-4(-25)

D = 100

Hence the discriminant is 100

For the roots;

x = 0±√100/2

x = ±10/2

x = ±5

x =-5 and 5

Given the following quadratic equation;

x^2 +10x+25 = 0

a = 1, b = 10, c = 25

D = (10)²-4(25)

D = 100-100

D = 0

Hence the discriminant is 0

For the roots

x = -10±√0/2

x = -10/2

x = -5

Given the following quadratic equation;

2x^2 - 5x+3 = 0

a = 2, b = -5, c = 3

D = (-5)²-4(2)(3)

D = 25-24

D = 1

Hence the discriminant is 1

For the roots;

x = 5±√1/2(2)

x = 5±1/4

x = 5+1/4 and 5-1/4

x = 6/4 and 4/4

x = 3/2 and 1

x = 18/2 and -6/2

x = 9 and -3

Answer:

f(p)=300p+1/20(200)

pls correct me if I am wrong

Answer:

C

Step-by-step explanation:

sorry if im wrong im not very smart

Answer: i can help with decimals

1. 0.36

2. 0.68

3. 0.08

4. 0.8

5. 0.14

6. 0.42

7. 0.02

8. 0.7

9. 0.89

Step-by-step explanation:

Answer: 5^10

Step-by-step explanation:

If you’re Talking about exponents, you do what’s in the parentheses first, 5^3×5^2 which will be 5^5 because you are adding exponents when multiplying by the same base. Then you multiply The exponents 2 and 5 because when you are multiplying exponents that are in  parentheses you multiply the exponents and leave the base the same.

Ps. I’ve added a picture with the rules, I hope this helps

Answer:

12

Step-by-step explanation:

18 - 4^2 + 5 x 2

18 - 16 + 5 x 2

18 - 16 + 10

2 + 10

12

Hope this helps!

Answer:

7.2

Step-by-step explanation:

4^2 is 16

18-16=2

2+5.2 =7.2

Bidmas

Answer:

2.5

Step-by-step explanation:

Simplifying

2y + -1.7 = 3.3

Reorder the terms:

-1.7 + 2y = 3.3

Solving

-1.7 + 2y = 3.3

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '1.7' to each side of the equation.

-1.7 + 1.7 + 2y = 3.3 + 1.7

Combine like terms: -1.7 + 1.7 = 0.0

0.0 + 2y = 3.3 + 1.7

2y = 3.3 + 1.7

Combine like terms: 3.3 + 1.7 = 5

2y = 5

Divide each side by '2'.

y = 2.5

Simplifying

y = 2.5

Answer:

2.5

Step-by-step explanation:

you have to get 2 and subract it by 1.7 then find what is missing in 3.3. then you find something you can multiply by 2 to find what can subtract by 1.7 to get 3.3

Answer:

can someone please help me with this

??

Step-by-step explanation:

Answer:

y=4

Step-by-step explanation:

I use the slope formula

y2-y1/x2-x1

4-4=0

/

-18-(-7)=11

=0

Finding the y-intercpt

I use (-7,4). Since you know the slope-intercpet form which is y=mx+b

y=mx+b

4=0(-7)+b

4=0+b ( subtract zero on both sides)

4=b

Thus, the equation of the line is y=4.

Answer:

x = 21

Step-by-step explanation:

let the number be x

-4(x-14) = -28

-4x + 56 = -28

-4x = -28 - 56

-4x = -84

x = 84/4 = 21

Answer:

The equation of the line would be y = -1/2x-3 when solved for y, this means the y-intercept is -3 and slope is -1/2

Step-by-step explanation:

hope this helped!

Answer:

Find the minimum and maximum values of the objective function subject to the given constrants. Objective function: C= 2x + 3y

Constraints:

x>0

y>0

Comment: These two conditions tell you the answers are in the 1st Quadrant.

-----------------------------

x +y < 9

Graph the boundary line: y = -x+9

Solutions points are below the boundary line and in the 1st Quadrant.

$60 is the write answer

Answer:

-10 7/20

Step-by-step explanation:

Brainliest maybe???

Answer:

-10 7/20

Step-by-step explanation:

Answer:

225 chairs

Step-by-step explanation:

Let the number of chairs ordered that cost $20 each be x and the number of chairs that cost $40 each is y.

Total cost= 20x +40y

Given that the company bought $6000 worth of chairs,

20x +40y= 6000

Dividing both sides by 20:

x +2y= 300 ----- (1)

x= 2y -----(2)

Substitute (2) into (1):

2y +2y= 300

4y= 300

y= 300 ÷4

y= 75

Subst. y= 75 into (2):

x= 2(75)

x= 150

Total number of chairs ordered

= x +y

= 150 +75

= 225

Answer:

68

Step-by-step explanation:

In other words, the slopes of parallel lines are equal. Note that two lines are parallel if their slopes are equal and they have different y-intercepts. In other words, perpendicular slopes are negative reciprocals of each other. Here is a quick review of the slope/intercept form of a line.

Answer:

M=916 2/3

Step-by-step explanation:

3250-m=1500+2(m-500)

3250-M=1500+2m-1000

3250-M=2M+500

3M=2750

M=916 2/3

Answer:

M = 1250

Step-by-step explanation:

3250 - M = 1500 + 2(M - 500)

3250 - M = 1500 + 2m - 1000

3250 - M = 500 + 2m

- 3250       -3250

- M =  -2750 + 2m

-2m                 -2m

-3m = -2750

-3m/-3m = -2750/-3m

M = 1250

Answer:

m∠ZD = 113°

Step-by-step explanation:

ZC and ZD are supplementary (180°)

m∠ZD = 180° - m∠ZC

m∠ZD = 180° - 67°

m∠ZD = 113°

Answer:

the length is 8ft

the width is 3ft

Step-by-step explanation:

Step one:

given

perimter= 22ft

let the length be x

width = x-5

Step two

the expression for the perimeter of a rectangle is

P=2L+2W

substituting our data

22= 2(x)+2(x-5)

open brackets

22=2x+2x-10

collect terms and solve for x

22+10=4x

32=4x

divide both sides by 4

x= 32/4

x= 8ft

the length is 8ft

the width = x-5= 8-5= 3ft

Answer:

So to graph using a table, the first step is...well... make a table. so you have a column of x and y. under the x column write down a bunch of values you would like to test. I am going to test -2 through 2.

x | y

-2|

-1|

0 |

1 |

2 |

Next, we have to plug each of those values into the equation y=2x to see what the corresponding y value is.

when x=-2 y=2(-2)=-4, when x=-1 y=2(-1)=-2, and so on...

x | y

-2|-4

-1|-2

0 |0

1 |2

2 |4

Next, graph those points on a coordinate plane. Each row on the table is a point on the graph, (x,y).  Hope that helps!

Answer:27

Step-by-step explanation:you want to divide 54 by 2 because 2 is 1/2

Answer:

27

Step-by-step explanation:

so we first ( this is just how I do it but it's still right) take the 1/2 and put it as .50 then you can do .50 * 54 = 27

the term 'OF' can mean multiply

hope it helps!

Answer:

11

Step-by-step explanation:

Answer:

y = ( [tex]\frac{10}{x}[/tex] )³

Step-by-step explanation:

log(y) + 3log(x) = 3

log(y) + log(x³) = 3

log(x³y) = 3

[tex]log_{10}[/tex] (y) + 3[tex]log_{10}[/tex] (x) = 3

[tex]log_{10}[/tex] (y) + [tex]log_{10}[/tex] (x³) = 3

[tex]log_{10}[/tex] (x³y) = 3 ⇔ 10³ = x³y ⇔ y = ( [tex]\frac{10}{x}[/tex] )³

2nd one, x^2 + 8x + 4

add 2x^2-x^2, 6x+2x, -3+7

Answer:

y = - 5x + 48

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 5x + 1 ← is in slope- intercept form

with slope m = - 5

Parallel lines have equal slopes, thus

y = - 5x + c ← is the partial equation

To find c substitute (9, 3) into the partial equation

3 = - 45 + c ⇒ c = 3 + 45 = 48

y = - 5x + 48 ← equation of parallel line

Answer:

10 inches/hour

Step-by-step explanation:

The tip moves clockwise in a circle of radius 10 inches.  The linear velocity is v = rω, where r is the radius and ω the angular velocity.  

This comes out to v = (10 inches)(1 revolution per hour) = 10 inches/hour

Answer:

C

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Answer:

it is c

Step-by-step explanation:

as you can see y is -2 while the formula for slope is change in y/x which is 2/3