I need this answer please help

Step-by-step explanation:

[tex] \frac{f}{5} = - 8[/tex]

[tex]f = - 8 \times 5[/tex]

[tex]f = - 40[/tex]

The weighted average is -33.

given,(2,8)(-4.-7)and their weighted average is 3:5

Weighted average is a calculation that takes into account the varying degrees of importance of the numbers in a data set. In calculating a weighted average, each number in the data set is multiplied by a predetermined weight before the final calculation is made.

(2,8)x5=10+40

           =50

(-4,-7)x3=-12-21

            =-33

therefoe, the weighted average is -33.

The average is the sum of all individual observations divided by the number of observations. In contrast, the weighted average is observation multiplied by the weight and added to find a solution.

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Answer: option 1

Step-by-step explanation:

Answer:

it will be 100 dollar because it spend 50$ on each

Answer:

136÷-10-7=-20.6

Step-by-step explanation:

.........

Answer:

30% of students chose something other

Answer:

[tex]1.12 \times 10^{10}[/tex]

Step-by-step explanation:

[tex]2.8 \times 10^4 \times 4 \times 10^5 \text{ // I like to separate the tens from all other numbers}\\\to (2.8 \times 4) \times (10^4 \times 10^5) \text{ // Remember the rule: } a^n \times a^m = a^{n + m}\\\to 11.2 \times 10^{4 + 5}\\\to 11.2 \times 10^9 \text{ // } 11.2 \text{ is equal to } 1.12 \times 10^1\\\to 1.12 \times 10^1 \times 10^9\\\to 1.12 \times 10^{1 + 9}\\\to 1.12 \times 10^{10}[/tex]

The equation for time is URM:

[tex]time = \frac{distance}{speed \: (rate)} [/tex]

[tex]t(s) = \frac{4s {}^{3} - 6s {}^{2} + 4s + 14}{s + 1} = \frac{2(s + 1)(2s {}^{2} - 5s + 7) }{s + 1} \\ t(s) = 2(2s {}^{2} - 5s + 7) \\ t(s) = 4s {}^{2} - 10s + 14[/tex]

Answer:

40

Step-by-step explanation:

Work from left to right.

24* (-2)*5/(-6)= -48*5/(-6)

-48*5/(-6)=-240/(-6)

-240/(-6)=40

Answer:

3/4

Step-by-step explanation:

[tex]\frac{9}{14} \times \frac{7}{6} \\ \\ =\frac{3}{14} \times \frac{7}{2} \\ \\ =\frac{3}{2} \times \frac{1}{2} \\ \\ =\frac{3}{4}[/tex]

Step-by-step explanation:

To graph an equation using the slope and y-intercept, 1) Write the equation in the form y = mx + b to find the slope m and the y-intercept (0, b). 2) Next, plot the y-intercept. 3) From the y-intercept, move up or down and left or right, depending on whether the slope is positive or negative.

Answer:

x^3 + 5

Explanation:

The solution to the system is x = 6/17 and y = -7/17

Linear equations are equations that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient

A system of linear equations is a collection of at least two linear equations.

In this case, the system of equations is given as

-9x+2y=-4

-x+4y=-2

Multiply -9x+2y=-4 by 2

So, we have

-18x + 4y = -8

Subtract -18x + 4y = -8 from the equation -x+4y=-2

-x + 18x + 4y - 4y = -2 + 8

Evaluate the like terms

17x = 6

Divide both sides of the equation by 17

x = 6/17

Substitute x = 6/17 in -x + 4y = -2

-6/17 + 4y = -2

This gives

4y = -2 + 6/17

Evaluate

4y = -28/17

Divide by 4

y = -7/17

Hence. the solution to the system is x = 6/17 and y = -7/17

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The area of the given square is a 9.

According to the statement

We have to find that the area of the square.

So, For this purpose, we know that the

Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.

From the given information:

The square ABCD with the side AB=3cm. A 3cm B D C​

Then

we know that the all the sides of the square all equals.

Then

AB=3cm = BC=CD=DA

Then

Area of the square = side*side

Area of the square = 3*3

Now,

The value of the Area of the square = 9.

So, The area of the given square is a 9.

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The selling price of the bicycle in discuss upon addition of the mark-up which is 33.3% as described in the task content is; $131.63.

The wholesale cost price of the bicycle in discuss is $98.75 as described in the task content while the markup for the bicycle is as given in the task content.

On this note, it follows that the selling price of the bicycle is the sum of its cost price and it's mark-up. Hence, we have;

Selling price = $98.75 + (33.3% of $98.75)

= $98.75 + (0.333 × $98.75)

= 98.75 + 32.88

= $131.63.

Ultimately, selling price of the bicycle in discuss upon addition of the mark-up which is 33.3% as described in the task content is; $131.63.

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Answer:

7 Rides

Step-by-step explanation:

Alright so you can already take out 20 bucks out of 41, so 21 bucks left. Then it's simple division, 21 / 3 = 7. You went on 7 rides. Hope this helps. Have a great night. :)

Answer:

7 rides!

Step-by-step explanation:

Our equation: 20+3x=41

x= the number of rides you went on

41-20= 21

21/3=7

Therefore, you went on 7 rides :))

Answer:

Step-by-step explanation:

Given functions h(x)=x²+1 and k(x)=x-2, you want the values of (h+k)(2), (h-k)(3) and 3h(2)+2k(3).

The value of a function f(x) is found by substituting the argument value for x in the function definition, then doing the arithmetic.

The value of a sum or difference of functions is the sum or difference of the values of those functions for the given argument.

  (h+k)(2) = h(2) +k(2) = (2²+1) +(2 -2) = 5 +0 = 5

  (h-k)(3) = h(3) -k(3) = (3² +1) -(3 -2) = 10 -1 = 9

   3h(2) +2k(3) = 3(2² +1) +2(3 -2) = 3(5) +2(1) = 17

Answer:

67

Step-by-step explanation:

Angles in a triangle add to 180°.

a) The first five terms of the sequence are 1, 3, 9, 27 and 81.

b) The first five terms of the sequence are 1, - 1, - 3, - 5 and - 7.

c) The first five terms of the sequence are 1, 3, 7, 15 and 31.

d) The first five terms of the sequence are 1, 2, 5, 26 and 677.

e) The first five terms of the sequence are 1, 3, 7, 13 and 21.

Recurrence formulas are expressions that generates an element of a sequence in terms of previous elements of the series. Now we proceed to calculate the first elements of each sequence:

Case A

n = 1

a(1) = 1

n = 2

a(2) = 3 · a(1)

a(2) = 3

n = 3

a(3) = 3 · a(2)

a(3) = 9

n = 4

a(4) = 3 · a(3)

a(4) = 27

n = 5

a(5) = 3 · a(4)

a(5) = 81

The first five terms of the sequence are 1, 3, 9, 27 and 81.

Case B

n = 1

b(1) = 1

n = 2

b(2) = - 2 + b(1)

b(2) = - 1

n = 3

b(3) = - 2 + b(2)

b(3) = - 3

n = 4

b(4) = - 2 + b(3)

b(4) = - 5

n = 5

b(5) = - 2 + b(4)

b(5) = - 7

The first five terms of the sequence are 1, - 1, - 3, - 5 and - 7.

Case C

n = 1

c(1) = 1

n = 2

c(2) = 2 · c(1) + 1

c(2) = 3

n = 3

c(3) = 2 · c(2) + 1

c(3) = 7

n = 4

c(4) = 2 · c(3) + 1

c(4) = 15

n = 5

c(5) = 2 · c(4) + 1

c(5) = 31

The first five terms of the sequence are 1, 3, 7, 15 and 31.

Case D

n = 1

d(1) = 1

n = 2

d(2) = [d(1)]² + 1

d(2) = 2

n = 3

d(3) = [d(2)]² + 1

d(3) = 5

n = 4

d(4) = [d(3)]² + 1

d(4) = 26

n = 5

d(5) = [d(4)]² + 1

d(5) = 677

The first five terms of the sequence are 1, 2, 5, 26 and 677.

Case E

n = 1

f(1) = 1

n = 2

f(2) = f(1) + 2 · 2 - 2

f(2) = 3

n = 3

f(3) = f(2) + 2 · 3 - 2

f(3) = 7

n = 4

f(4) = f(3) + 2 · 4 - 2

f(4) = 13

n = 5

f(5) = f(4) + 2 · 5 - 2

f(5) = 21

The first five terms of the sequence are 1, 3, 7, 13 and 21.

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Liam and Sam write the correct number.

Option D is true.

What is Expanded form of a number?

The splitting of numbers based on the place value is called Expanded form of a number.

The number is given as;

4×1 + 6 × 1/10 + 9 × 1/1000

Now, The number is written in standard form as;

⇒ 4×1 + 6 × 1/10 + 9 × 1/1000

⇒ 4 + 0.6 + 0.009

⇒ 4.609

Then write the number in word form,

⇒ 4.609 =  Four and six hundred nine thousandths.

So, Liam and Sam write the correct number.

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Given the functions f(x) = 1/x and g(x) = x⁴, the function operation ( f + g )(x) is x⁴ + 1/x.

Given the functions in the question;

To evaluate f + g, replace the function designators in f + g with the actual functions and simplify

( f + g )(x) = f(x) + g(x)

( f + g )(x) = ( 1/x ) + ( x⁴ )

Remove the parenthesis

( f + g )(x) = ( 1/x ) + ( x⁴ )

( f + g )(x) = 1/x + x⁴

Reorder 1/x and  x⁴

( f + g )(x) = 1/x + x⁴

( f + g )(x) = x⁴ + 1/x

Given the functions f(x) = 1/x and g(x) = x⁴, the function operation ( f + g )(x) is x⁴ + 1/x.

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The residual value with an actual value of 10 and a predicted value of 14 will be 4. Then the correct option is D.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

We know that the difference between the predicted value and to actual value is known as the residual value.

Residual value = Predicted value - Actual value

If the observed (actual) y value is 10, and the predicted value is 14. Then the residual value will be

Residual value = 14 - 10

Residual value = 4

The residual value will be 4. Then the correct option is D.

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According to the venn diagram 21 elements belong to set A but not set B.

A Venn diagram is a diagram that helps us visualize the logical relationship between sets and their elements and helps us solve examples based on these sets. A Venn diagram typically uses intersecting and non-intersecting circles (although other closed figures like squares may be used) to denote the relationship between sets.

The given information is U = 23, n(A)= 21+ 5= 25 and n(B)= 15+5 =20

We have to find how many elements belong to set A but not set B.

In the given Venn diagram , The elements belong to set A but not set B is 21

The elements belong to set A but not set B is 21

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Answer:

I think it's 3x + 5 = 21 because three times a number would be 3x so that would eliminate options 2 & 4, then it says five more than three which would be adding five so that would only leave option 1 so that should be your answer

Hope this helps and may God bless you<3

Answer: Can u pls help me withe my question?

Step-by-step explanation:

The greatest number of persons that would be invited is 51.

In order to get the greatest number of person that they would be inviting we would have this equation

100+37x ≤ 2,000

Where we have money budgeted to be 2000 dollars

cleanup fee = 100 dollars

Amount per person = 37 dollars

Then we would have

100+37x ≤ 2,000

37x ≤ 2000 - 100

37x ≤ 1900

we have to divide through by 37

37/37 = 1900 / 37

x = 51.3

Hence we would say that the greatest number of persons that would be invited is 51.

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0.620  is the probability that the animal Fran picks is poisonous or is a snake .

How does probability explain work?

Total animal = ( 6 + 8 + 11 + 4 ) =  29

Let,  p = Event of poisonous animal

        s = event of spider

     p U s = event of poisonous or spider

      p ∩ s = event of poisonous or spider

n(P)   =  No of poisonous = ( 6 + 11 ) = 17

n(S)    =  No of spider =   ( 8 + 4 ) = 12

n(P ∩ S)  No of poisonous spider = 11

Then ,    P [ P ] = 17/29       , P [S ] = 12/29     P [ P ∩ S ] = 11/29

   P [ poisonous or spider ]

 = P [ P ∪ S ] = P [P] + P [ S ] - P [ P ∩ S  ]

                     = 17/29  + 12/29 - 11/29

                      =  18/29  = 0.620

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