Which of the following equations could be graphed below?

A. y=x^2 + 2
B. y=-x^2 + 2
C. y=-x^2 – 2
D. y=-(x^2 + 2)

The probability that the system gets damaged is 0.685.

Virus A damages the system with probability 0.4.

Independently of it, virus B damages the system with probability 0.5.

Independently of A and B virus C damages the system with probability 0.2.

We have to find the probability that the system gets damaged.

P(system will not be damaged by virus 1) = 1 - 0.1 = 0.9

P(system will not be damaged by virus 2) = 1 - 0.5 = 0.5

P(system will not be damaged by virus 3) = 1 - 0.3 = 0.7

P(the system will be damaged) = 1 - P(system will not be damaged)

P(the system will be damaged) = 1 - P(system will not be damaged by virus 1) x P(system will not be damaged by virus 2) x P(system will not be damaged by virus 3)

P(the system will be damaged) = 1 - 0.9x0.5x0.7

P(the system will be damaged) = 0.685

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Answer:

38

Step-by-step explanation:

all you need to do is divide 304 divided by 8

Answer:

38

i did the math fr

Answer:

Yessir all the opps tryna put me on a t shirt

Step-by-step explanation:

Answer:

x=20 and y=50

Step-by-step explanation:

The rapper performs 50 times this year according to the operation.

A product is the result of multiplying two or more numbers or expressions together. For example, the product of 2 and 3 is 6, and the product of x and y is xy. The symbol for multiplication is often an asterisk (*) or a dot (·), but it can also be indicated by parentheses or by simply writing the two factors next to each other.

Parentheses are used to group together terms and operations in an expression. They are also known as round brackets and are written as a pair of curved lines facing each other like this: ().

In the given question,

To find out how many times the rapper performs this year, we need to first calculate 125% of the number of times they performed last year, which is 40.

We can do this by multiplying 40 by 1.25 (125% as a decimal).

125% = 125/100 = 1.25

So, the number of times the rapper performs this year is:

40 x 1.25 = 50

Therefore, the rapper performs 50 times this year.

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Answer:

first one I am thinking 6.52 and the second one I am thinking 6.67

Step-by-step explanation:

Hope this Helps!!!

a Binomial is 2 terms

so the solution is

A

B

E

Answer:

A, B, and E

Step-by-step explanation:

Binomials are equations that consist of two terms.

Answer:

its y= -0.3(x-2)^2-5

Step-by-step explanation:

Answer:

140-80= 60

60/5=12

so B 12 is the answer

The smallest positive integer $n$ for which $x² + xy + y² + n$ is a multiple of 7 is $n = 7 - 3(x+y)$.

The question states that $x-3$ and $y+3$ are multiples of 7. We need to find the smallest positive integer, $n,$ for which $x² + xy + y² + n$ is a multiple of 7.
To solve this, we can simplify the expression by factoring out $x^² + xy + y^²$:
$x^² + xy + y^² = (x-3)(y+3) + 3(x+y)$
Since $x-3$ and $y+3$ are multiples of 7, we can rewrite the expression as:
$x² + xy + y²= 7m + 3(x+y)$, where $m$ is an integer.
Now, we need to find the smallest positive integer $n$ such that $x² + xy + y² + n$ is a multiple of 7.
Since $7m + 3(x+y)$ is already a multiple of 7, we can choose $n$ to be a multiple of 7 minus $3(x+y)$. Therefore, the smallest positive integer $n$ for which $x² + xy + y^² + n$ is a multiple of 7 is $n = 7 - 3(x+y)$.
To summarize, the smallest positive integer $n$ for which $x² + xy + y² + n$ is a multiple of 7 is $n = 7 - 3(x+y)$.

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Answer:

549.5

Step-by-step explanation:

The formula for the Volume of a right cylinder is V= π r² h. First you are going to substitute the 5 with the r and the 7 with the h. V= (3.14)5²(7). 5²= 25.

3.14 (25)=78.5

78.5 (7)=549.5

Answer is 549.5

Answer:

The speed increases (45—>47—>49) then decreases (48—>47) over time.

Step-by-step explanation:

The table that represents the speed of the car that increases and decreases as time increases is Table B.

Option B is the correct answer.

Speed is the ratio of the given distance and time.

It shows how fast an object is moving at a given time.

The formula is Distance / Time.

We can find the distance or time when the required values is given using this formula.

We have,

From the table,

We see that,

Time      5     6     7      8     9

Speed   45   47   49   48   47

This indicates that,

As time increases, the speed increased from 5 minutes to 7 minutes and decreases from 7 minutes to 9 minutes.

Thus,

The table that represents the speed of the car that increases and decreases as time increases are in Table B.

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False. According to the SMCRE model, which stands for Source, Message, Channel, Receiver, and Environment, presenters do not have the most control over the source variable.

According to the SMCRE model, which stands for Source, Message, Channel, Receiver, and Environment, presenters do not have the most control over the source variable. In this model, the source variable refers to the information being presented or communicated. While presenters can influence the source through their choice of content and delivery, they do not have complete control over it. The source variable can also include factors such as the underlying research, data, or ideas being conveyed, which may not be directly controlled by the presenter. Other variables, such as the message, channel, receiver, and environment, also play significant roles in the overall communication process.

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Answer:

Step-by-step explanation:

we have a right triangle,

to find out the hypotenuse, h

H^2=13^2+4^2

H^2=169+8=177

The required equation would be x² = 13² + 4² which is determined by Pythagoras theorem that is used to the length of the Ladder needed to reach the window.

A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.

Pythagoras theorem states that in a right-angled triangle, the square of one side is equal to the sum of the squares of the other two sides.

We have given that the window is 13ft above the ground and the base of the ladder is 4ft from the building

As per the condition, We have a right triangle.

To find out the hypotenuse x

By Pythagoras theorem,

⇒ x² = 13² + 4²

⇒ x² = 169 + 8

Therefore, the equation would be x² = 13² + 4²which is used to determine the length of the Ladder needed to reach the window.

Hence, the correct answer would be an option (A).

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Answer:

U4

Step-by-step explanation:

Answer:

AB=2.775

BC=5.55

CA=6.475

Step-by-step explanation:

Since midpoints split their sides in half, we can see that the triangle MNK formed by the midpoints will be half the perimeter of the triangle ABC. Since P of MNK = 7.4, we know that the perimeter of ABC = 7.4 * 2, which is 14.8. Now we can split the 14.8 so that it follows the ratio.

3+6+7=16

14.8/16=0.925

AB=0.925*3=2.775

BC=0.925*6=5.55

CA=0.925*7=6.475

The lengths of the sides of △ABC are AB=2.775 in., BC=5.55 in. and CA=6.475 in.

Given that, AB:BC:CA=3:6:7 and M, N, and K are the midpoints of the sides.

Let us take AB=3x, BC=6x and CA=7x.

The midpoint theorem states that the line segment joining the midpoints of any two sides of a triangle is parallel to the third side and equal to half of the length of the third side.

So, NK=1/2 AB=1/2 (3x), MN=1/2 BC=1/2 (6x) and MK=1/2 (AC)=1/2 (7x)

The perimeter of △MNK equals 7.4.

Now,MN+NK+MK=3x+1.5x+3.5x=7.4 in.

⇒8x=7.4 in.

⇒x=0.925 in.

So, AB=2.775 in., BC=5.55 in. and CA=6.475 in.

Therefore, the lengths of the sides of △ABC are AB=2.775 in., BC=5.55 in. and CA=6.475 in.

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A leaking faucet in the S&E building lab, dripping at a rate of one drop per second, will result in a water loss of approximately 4,725 liters in one year.

To calculate the amount of water lost in one year, we need to determine the number of drops per year and then convert it to liters. Since the faucet drips at a rate of one drop per second, there are 60 drops in a minute (60 seconds), which totals to 3,600 drops in an hour (60 minutes).

In a day, there would be 86,400 drops (24 hours * 3,600 drops). Considering a year of 365 days, the total number of drops would be approximately 31,536,000 drops (86,400 drops * 365 days). To convert the number of drops to liters, we need to multiply the total number of drops by the volume of each drop.

Given that each drop contains 0.150 milliliters, we convert it to liters by dividing by 1,000, resulting in 0.00015 liters per drop. Multiplying the total number of drops by the volume per drop, we find that the total water loss is approximately 4,725 liters (31,536,000 drops * 0.00015 liters/drop).

Therefore, in one year, the leaking faucet in the S&E building lab would result in a water loss of approximately 4,725 liters.

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Answer:

12

Step-by-step explanation:

Answer:

1) 12 boxes

2) 3, 6, 12

3) 12

4) 110 degrees

Step-by-step explanation:

1) Count the rectangles. Multiply the length of the rectangle in boxes to the width of rectangle in boxes.

Length: 4 boxes

Width: 3 boxes

4 x 3 = 12

12 boxes

2)

10% of 30 is 0.1 times 30.

0.1 x 30 = 30/10 = 3

20% of 30 is 0.2 times 20.

0.2 x 30 = 30/5 = 6

40% of 30 is 0.4 times 20.

0.4 x 30 = 30/2.5 = 12

3) Count the cubes. Reminder there are 2 boxes you cannot see.

Top Layer: 2

Middle Layer: 4

Back Bottom Layer: 4

Front Bottom Layer: 2

2 + 4 + 4 + 2 = 12

4) I cannot see the semicircle clearly, but I do know that a circle is 360 degrees. A semicircle, half of a circle, is 180 degrees.

180/18 (The angle of each section)

10

11 Sections

10 x 11 = 110

Answer:

- 1, 2 , 7 and 98

Step-by-step explanation:

substitute n = 1, 2, 3 into the nth term rule

a₁ = 1² - 2 = 1 - 2 = - 1

a₂ = 2² - 2 = 4 - 2 = 2

a₃ = 3² - 2 = 9 - 2 = 7

the first 3 terms are - 1, 2, 7

substitute n = 10 into the rule

a₁₀ = 10² - 2 = 100 - 2 = 98

the tenth term is 98

\(\it tan60^o=\dfrac{AB}{BC} \Rightarrow \sqrt3=\dfrac{AB}{50} \Rightarrow AB=50\sqrt3\approx50\cdot1,732\approx87\ m\)

Two unit vectors that make an angle of 60 degrees with v = (3, 4) are approximately (2.5000, 4.3301) and (-2.5000, -4.3301).

To find two unit vectors that make an angle of 60 degrees with vector v = (3, 4), we can use trigonometry and vector operations.

Step 1: Calculate the magnitude of vector v:

|v| = sqrt(3^2 + 4^2) = 5

Step 2: Convert the given angle of 60 degrees to radians:

θ = 60 degrees * (π/180) = π/3 radians

Step 3: Calculate the components of the unit vector in the same direction as v:

u1 = cos(θ) = cos(π/3) ≈ 0.5000

u2 = sin(θ) = sin(π/3) ≈ 0.8660

Step 4: Multiply the components by the magnitude of v to obtain the unit vectors:

u1 = u1 * |v| ≈ 0.5000 * 5 ≈ 2.5000

u2 = u2 * |v| ≈ 0.8660 * 5 ≈ 4.3301

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Answer:

D= 81/x I think this is the ans

The cost of water is $1 according to spendings on Jose and Alice.

Let us represent chips as x and water as y. Forming the equation for each individual -

Equation for Jose

3x + 2y = 6.5

Equation for Alice

2x + y = 4

y = 4 - 2x

Now, keeping the value of y from equation for Alice into the equation for Jose.

3x + 2(4 - 2x) = 6.5

Opening the bracket and performing multiplication

3x + 8 - 4x = 6.5

Rewriting the equation

4x - 3x = 8 - 6.5

Performing subtraction on each side of the equation

x = $1.5

Cost of water y = 4 - 2×1.5

Cost of water = 4 - 3

Cost of water = $1

Hence, water costs 1 dollar.

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The Kruskal-Wallis test is a non-parametric test used to compare three or more independent groups to determine if there is a significant difference between the medians of the groups. The test statistic used in this test is denoted by the letter "H," which is calculated based on the ranks of the data.

True. The test statistic calculated in the Kruskal-Wallis test is denoted by the symbol H, not to be confused with the Shapiro-Wilk test statistic denoted by W. The Kruskal-Wallis test is a non-parametric test used to compare the median ranks of three or more independent groups. The test statistic H is calculated by comparing the between-group sum of squares to the total sum of squares. H follows a chi-squared distribution with degrees of freedom equal to the number of groups minus one. The p-value obtained from the chi-squared distribution is used to determine whether to reject or fail to reject the null hypothesis that there is no significant difference between the groups.

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Answer:

A. Additive Inverse Property

Step-by-step explanation:

The additive inverse property states that when you change the sign of the number and add it to the original number, the answer will equal 0.

hope this helps :)

Answer:

The answer is additive inverse property.

Step-by-step explanation:

This is because you are adding the inverse number of 3x, which gives you zero.

Answer:

the second one

Step-by-step explanation:

y = 2/3 (x +6)-5

Answer:

B

Step-by-step explanation:

Answer:

Robert is 10  and his dad is 40 years old

Step-by-step explanation:

We have (4x+5)=3(x+5)

4x+5=3x+15

x=10.

Roberts is 10 years old and his father is 40 years old.

Answer:

Step-by-step explanation:

Roberts's father=4x

Robert=x

After 5 years, the ages will be

4x+5 and x+5 because we just simply add 5 years to their ages

It says that the father will be 3x older. So,

3(x+5)=4x+5.   --this is the equation

3x+15=4x+5

    -5         -5

3x+10=4x

-3x     -3x

x=10

Answer:

Step-by-step explanation:

45 meters is too long, 45 millimeters is too small. best choice would be 45 centimeters