Besides 9 and 1, what is one factor of 9?

Hi!!! So to do this problem, you need to find the mean values for each sample. I will walk you through finding the mean of sample 1: first you want to add all of the values for sample 1, which are 4,5,2,4 and 3. Once you add those values you get 18. Then you must divide that 18 by the number of terms you added. The numbers you added were 4,5,2,4 and 3 like I said earlier which is 5 numbers. You divide 18 by 5 to get your mean, which is 3.6

Answer: (B) Sample 2

sample 1 mean = 3.6

sample 2 mean = 4.2

sample 3 mean = 3.8

sample 4 mean = 4

Answer:

50

Step-by-step explanation:

Adding up 20, 30, 40, 50, 60, 70, 80, we get 350.  There are 7 numbers in this set, so divide this 350 by 7.  We obtain the mean, 350/7 = 50 (Answer B)

Answer:

Your answer would be: B) 50

To find the mean, you add all the numbers in the data set and divide them by how many numbers there are, which in this case it is 7.

a)  -5+(-2) (4-8) =

(-7)(-4) = 28

b)  -10 + (-21) (-7) =

(-10) + 147 = 137

c)  6- (-3) (1-9)

9 (1-9) = -72

d)  8 - (-28) (3 - 10)

36 (-7) = -252

The answers will be a. 3, b. 137, c. -18, d. -188.

The student is asked to calculate the results of several basic arithmetic operations involving integers, following the order of operations (PEMDAS/BODMAS). Here's how each of the operations should be computed:

1. -5 + (-2) × (4 - 8)
-5 + (-2) × -4.

-5 + 8 = 3.

2. -10 + (-21) × (-7)

-10 + 147 = 137.

3. 6 - (-3) × (1 - 9)

6 - (-3) × -8

6 - 24 = -18.

4. 8 - (-28) × (3 - 10)

8 - (-28) × -7

8 + 196 = -188

Answer:

5+√97/4

Also 5-√97/4

Step-by-step explanation:

The Quadratic formula is x=-b+-√b^2-4ac/2a

This means that we should plug the values for A B AND C into the formula

We can work out that

A = 2

B=-5

C=-9

Once we have put these into the formula we get

5+√97/4 (all over 4) aka 3.71

Also 5-√97/4 (all over 4) aka -1.21

Answer:

[tex]\large\boxed{x=\dfrac{5-\sqrt{97}}{4}\ or\ x=\dfrac{5+\sqrt{97}}{4}}[/tex]

Step-by-step explanation:

[tex]\text{Let}\ ax^2+bx+c=0\\\\\text{The quadratic formula:}\\\\\Delta=b^2-4ac\\\\\text{If}\ \Delta>0,\ \text{then the equation has two solutions}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\\\text{If}\ \Delta=0,\ \text{then the equation has one solution}\ x=\dfrac{-b}{2a}\\\\\text{If}\ \Delta<0,\ \text{then the equation has no solution}\\==================================[/tex]

[tex]\text{The equation}\ 2x^2-5x-9=0\\\\a=2,\ b=-5,\ c=-9\\\\\Delta=(-5)^2-4(2)(-9)=25+72=97>0\\\\\sqrt\Delta=\sqrt{97}\\\\x_1=\dfrac{-(-5)-\sqrt{97}}{2(2)}=\dfrac{5-\sqrt{97}}{4}\\\\x_2=\dfrac{-(-5)+\sqrt{97}}{2(2)}=\dfrac{5+\sqrt{97}}{4}[/tex]

Answer: (A) The root at point P may be .

Step-by-step explanation:edge2022

Answer:

c 5/48

Step-by-step explanation:

Step-by-step explanation:

Okay! Since these are similar figures we need to find the scale factor in order to answer this question.

We have a triangle with sides 7, 4, and 9. The longest side is 9. This corresponds with the longest side on the similar triangle, which is 36. So to find the scale factor we divide 36 by 9. The scale factor is 4.

Now to find the shortest side of the bigger triangle, we have to find the length of the shortest side on the smaller one which is 4. Since our scale factor is 4, we multiply 4 by 4 to get 16.

The length of the shortest side of the similar triangle is 16

The shortest ide is 16

Answer:

The first question answer is Fred. The second one is 1/7. Sorry that is all i know.

Step-by-step explanation:

It's hard to explain, but theres a trick to it too.

Answer:

8:5

Step-by-step explanation:

32:20

8:5

Answer: Variables are usually written in lower-case letters.

Step-by-step explanation:

For example, it's "9x +10" not "9X +10"

Answer:

D

Step-by-step explanation:

It's one of each or not both tho:)

Answer:

Option C. is the correct answer.

Step-by-step explanation:

Since in the given Venn diagram "Blue circle" is contained in a "purple circle".

Blue circle represents Equilateral triangles and purple color circle represents isosceles triangle.

Since by this Venn diagram, equilateral triangles are contained in isosceles triangle then we can conclude that all equilateral triangles are isosceles triangle.

Therefore, option C. if shape is an equilateral triangle, then it is an isosceles triangle is true.

Answer:

D) 2/3

Step-by-step explanation:

Let x represent the number of boys at the high school.

1/8x total tried out for football.

1/6 total tried out for baseball.

If we were to draw a Venn diagram, the intersection of the two circles would be the 1/12 of the students that tried out for both, or 1/12x.

Taking this away from the total of 1/8x for football,

1/8x - 1/12x

3/24x - 2/24x

1/24x tried out for just football.

Taking the 1/12x away from the 1/6x that tried out for just baseball,

1/6x - 1/12x

4/24x - 2/24x

2/24x = 1/12x tried out for just baseball.

Looking at those that tried out for football, 2/24 tried out for both and 3/24 total tried out for football.  This means 2 out of 3, or 2/3, of the football try outs also tried out for baseball.

2 / 3 are the required fraction of the boys who tried out for football and also tried out for baseball. OPtion D) is correct.

Given that,
1/8 of the boys at a high school tried out for the football team,
1/6 tried out for the baseball team, and 1 /12 tried out for the football team and baseball team.
What fraction of those who tried out for football also tried out for baseball is to be determined.

The ratio can be defined as the comparison of the fraction of one quantity towards others. e.g.- water in milk.

Here,
The fraction of boys that tried out for football also tried out for baseball.
= (1 / 6 - 1 / 12) / 1 / 8
= 2 / 24 * 8 / 1
= 2 / 3

Thus, 2 / 3 are the required fraction of the boys who tried out for football and also tried out for baseball. Option D) is correct.

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Answer:

(-3, 0)

Step-by-step explanation:

Let's solve this system using the elimination by addition/subtraction method.  Begin by writing the two equations one above the other:

5x +2y =-15

2x - 2y =-6

Notice that the y terms cancel each other out:

5x +2y =-15

2x - 2y =-6

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

7x        = -21

Dividing both sides by 7 results in x = -3.

Subbing -3 for x in either of the given equations leads to finding y:

5(-3) + 2y = -15, or -15 + 2y = -15.  This results in 2y = 0, or y = 0.

The solution is (-3, 0).

Using the elimination method, the solution to the system of equations is: (-7, -4)

Using the elimination method, the solution to the system of equations is found by adding or subtracting the equations to eliminate one variable, then substitute to find the other.

Given the system of equations:

5x + 2y = -15 --> Eqn. 1

2x - 2y = -6 --> Eqn. 2

Add

3x = -21

x = -21/3

x = -7

Substitute x = -7 into Eqn. 2.

2(-7) - 2y = -6

-14 - 2y = -6

-2y = -6 + 14

-2y = 8

y = -4

The solution is (-7, -4)

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Answer: E. 150 square units.

Step-by-step explanation:A polygon is figure with at least 3 straight or definite sides or typically 5 or more straight sides.

Here the polygon we are given is a rectangle.

We know that,

Area of a rectangle = l x w

so we need to measure the length and width of the rectangle to find its area.

If we look closely, we can see the length of the rectangle above the x-axis is 8 units and the length below the x-axis 7 units which makes a total og 15 units.

Answer:

D) 150 square units

Step-by-step explanation:

Use the distance formula: d = (x2 - x1)2 + (y2 - y1)2

A = L x W = 15/-2x 5/-2

= 150

Final answer:

The quadrilateral with two pairs of parallel sides, equal side lengths, and no right angles is a rhombus. It can be thought of as a 'pushed over' square without right angles.

Explanation:

The student is asking about a type of quadrilateral that meets certain criteria: it has two pairs of parallel sides, all sides are of equal length, and it has no right angles. A rectangle is a quadrilateral with four right angles, hence it does not meet the criteria since the question specifies no right angles. Considering the traits listed, the quadrilateral in question is a rhombus. A rhombus has all sides of equal length and two pairs of parallel sides, but unlike a square, it does not necessarily have right angles. To visualize, we can think of a 'pushed over' square – if the angles are all acute or obtuse rather than right angles, it qualifies as a rhombus.

Answer:F

Step-by-step explanation:

Due to the fact the ratio is 14 to 6, 14 to 6 is basically close to 3/4.

Answer:

-b + 5

Step-by-step explanation:

translation

Final answer:

The y-coordinate of point S after reflection across the x-axis and translation is -b, as reflection across the x-axis changes the sign and translation to the right does not affect the y-coordinate.

Explanation:

The student is asking to find the y-coordinate of a point S after a reflection across the x-axis and a translation 5 points to the right of a point R with coordinates (a,b).

The reflection of the y-coordinate across the x-axis changes its sign, so the reflected y-coordinate of point R would be -b. Translating a point to the right does not affect the y-coordinate, so the y-coordinate of point S would remain -b after this translation. Therefore, the expression that represents the y-coordinate of S is simply -b.

Answer:

Part a:[tex]f(x)=-2(x+1)^2+8[/tex]

Part b: Maximum value

Step-by-step explanation:

Part a.

The given function is [tex]f(x)=-2x^2-4x+6[/tex].

We need to complete the square to obtain the vertex form

[tex]f(x)=-2(x^2+2x)+6[/tex]

Add and subtract the square of half the coefficient of x.

[tex]f(x)=-2(x^2+2x+(1)^2)--2(1)^2+6[/tex]

[tex]f(x)=-2(x^2+2x+1)+2+6[/tex]

The quadratic trinomial within the parenthesis is now a perfect square

[tex]f(x)=-2(x+1)^2+8[/tex]

The vertex form is [tex]f(x)=-2(x+1)^2+8[/tex]

Part b

Comparing [tex]f(x)=-2(x+1)^2+8[/tex] to [tex]f(x)=a(x-h)^2+k[/tex], we have a=-2.

Since a is negative the vertex is a maximum point.

Hence the function has a maximum value

8 because the begging of the box is 8 away from the end of the box

Answer:

C.8 mark me as the best

Step-by-step explanation:

Answer:

111 months old.

Step-by-step explanation:

you first divide 12 by four giving us 3.

then times 9 by 12. that gives us 108.

then add 108 + 3 to give us the final results.

Hope that helps!

(if you could rate/thank me that would be amazing!)

111 months old.

A year is 12 months.

9x12=108

Then add 3 to 108.

= 111

Answer:

Choice B is correct

Step-by-step explanation:

We apply the rule of exponents;

[tex]a^{-b}=\frac{1}{a^{b}}[/tex]

[tex]7^{-2}=\frac{1}{7^{2}}=\frac{1}{49}[/tex]

Answer:

A. 2 terms; variable = x; constant = 4.5 -------> 4.5 - 2x

B. 2 terms; variables = x and y -----------> 4.5y - 2x

C. 3 terms; variables = x and y; constant = 2 --------------> 4.5x + 2 - 3y

D. 3 terms; variables = x and y; constant = 3 --------------> x - 2y + 3

Its 100% correct just not in the order you put it in, I think you might of switched them but I just did the Warm-Up and its right my dudes :)

Final answer:

The descriptions provided for A and D do not perfectly match any of the available expressions, indicating a potential error in the provided materials. However, for descriptions B and C, expressions 1 and 2 are the respective matches.

Explanation:

To match each description of an algebraic expression with the symbolic form, we must look for the characteristics that fulfill the given conditions. These include the number of terms, the variables involved, and any constants.

A. 2 terms; variables = x and y: This description does not list a constant, so we are looking for an expression that has only x and y terms. None of the provided options fits perfectly as they all include a constant.

B. 3 terms; variables = x and y; constant = 3: The expression that fits this description is 1. x - 2y + 3.

C. 2 terms; variable = x; constant = 4.5: This description matches the expression 2. 4.5 - 2x.

D. 3 terms; variables = x and y; constant = 2: Once again, we're looking for an expression with three terms including the variables x and y and a constant of 2. However, none of the provided expressions fits this description since they all include a different constant.

Since the options provided do not fully satisfy the descriptions A and D, this can lead to an assumption that there may have been a mistake either in the given descriptions or in the provided expressions. We can answer to the extent that the options allow.

Correct matches from the provided options:

B is matched with 1

C is matched with 2

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Something plus 7 is smaller than -3

So, let's go for a number that's lower than -3.

Let's try, -17

-17 + 7 = -10

-10 < -3

-10 is smaller than -3

Answer:

$246

Step-by-step explanation:

The price of the product is $390, after 6 months the price is marked down by 10% which is $39 so the total will be $351. After another 6 months the price is marked down again by 30%, which is $105 and 3 cents ($105.3). For a total of $245 and 7 cents ($245.7).  To round the number you only need to look at the number after the decimal which is 7 in this case. Any number bellow 5 counting 5 in it, will stay the same number, any number above 5 without counting 5 will be the next number. So $245.7 rounded to the nearest dollar will be $246.

Hope it was helpful ^^ <3

Good Luck

Multiply the total number of freshman by the percentage:

754 x 0.78 = 588.12

Since you cant have 0.12 of a person, round up to 589 people.

Approximately 589 of the freshmen at the high school would be expected to have internet access at home.

We are given that 78% of high school freshmen have internet access at home. This percentage can be expressed as a fraction or a decimal for calculation purposes. In this case, we will use the decimal form, which is 0.78.

The total number of freshmen at the high school is given as 754.

To find the number of freshmen with internet access, we multiply the total number of freshmen by the percentage (in decimal form) that represents those with internet access.

The calculation is as follows:

 Number of freshmen with internet access = Total number of freshmen × Percentage with internet access

 Number of freshmen with internet access = 754 × 0.78

Performing the multiplication:

 Number of freshmen with internet access = 588.92

In conclusion, about 589 of the 754 freshmen at the high school would be expected to have internet access at home.

Answer:

the answer is D because their are 2 points that collide

Step-by-step explanation:

that's why I chose the answer d

Correlation in statistics is the relationship between two variables that can be positive, negative, or non-existent. Positive correlation means both variables move in the same direction, while negative correlation means they move in opposite directions. 'Prime correlation' is not a recognized term in statistics.

In statistics, the term correlation refers to the statistical relationship between two variables. A correlation can be positive, negative, or there might be no correlation.

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5.97 * 10^24 - 4.87 * 10^24 = 1.1 * 10^24