Please Help!!! brainliest answer!

Answer/Step-by-step explanation:

a. The the class width for the 1st, 2nd, 3rd, and 5th row equal 5 in the frequency distribution. Whereas, in the 4th row, the class width is 4 (49 - 45). This makes the construction incorrect.

b. Here, the upper limit of each consecutive class was used as the lower limit if the next class. For example, 9 is a member of the first class, which is the upper limit if the class in the first row, it ought not to be included as a member of the next class in the second row.

c. In the 3rd row, the lower limit of the class should be 133, NOT 138.

d. Different class width were used.

Row 1 class width = 13 - 9 = 4

Row 2 class width = 19 - 14 = 5

Row 3 class width = 25 - 20 = 5

Row 4 class width = 28 - 26 = 2

Row 5 class width = 32 - 29 = 3

The reason for all the frequency distribution is given below and this can be determined by using the given data.

Check all the options in order to determine the reason for the incorrect construction.

A) The given frequency table is given below:

Class            Frequency          

27-32                 1                                

33-38                 0                              

39-44                 6                              

45-49                 4                              

50-55                 2                              

In the fourth row, the class should be ending with 50.

B) The given frequency table is given below:

Class            Frequency          

5-9                     1                                

9-13                    2                              

13-17                   5                              

17-20                  6                              

20-24                 3    

In the fourth row, the class should be ending with 21.

C) The given frequency table is given below:

Class            Frequency          

123-127                 3                                

128-132                 7                              

138-142                 2                              

143-147                 19                              

In the second row, the class should be starting from 127.

D) The given frequency table is given below:

Class            Frequency          

9-13                     1                                

14-19                    6                              

20-25                  2                              

26-28                  5                              

29-32                  9  

In the second row, the class should be starting from 13.

For more information, refer to the link given below:

https://brainly.com/question/4393505

Answer:

400

Step-by-step explanation:

354>=350 and thus is rounded upwards to 400.

Answer:

it is 400

Step-by-step explanation:

IF you round to the nearest hundred, then you are going to up or down by the hundred. Since 54 is closer to 100, the number 354 goes to 400.

Answer:

x=-5

Step-by-step explanation:

The turning point is at x=-5 and thus is the axis of symmetry.

Answer:

12x

Step-by-step explanation:

8 uniforms= 96 yards

15 uniforms= 180 yards

Answer:

7x^2 + 7

Step-by-step explanation:

So you collect the "like-terms". 3x^2 is not the same as 7, however, 4x^2 has the same term as 3x^2, so you add those together and then join the 7 in the expression.

Hope that explanation makes sense

Answer:

[tex]3x^{2} + 4 {x}^{2} + 7 = 7 {x}^{4} + 7[/tex]

Step-by-step explanation:

Because 3x² and 4x² are like terms, they can be added together:

3+4=7

²+²=⁴

Therefore, it will be 7x⁴.

But 7x⁴ and 7 are not like terms. So it is just 7x⁴+7

Answer:

5x-3= 2x

4x + 6= 10x

Step-by-step explanation:

The first awnser is right because the x    doesnt have a value therefore you keep the x but you still do the problem.

the second one is right because the same  explanation for the first question but its addition and if the x had a value then you would multiply the 4 and the value of the x first then you would do the addition.

Answer:

Step-by-step explanation:

3x+5+4x+8=69

7x+5+8=69

7x+13=69

   -13   -13

7x=56

7x/7=56/7

x=8

3x+5

3(8)+5

24+5

29

JT=29

Answer: 8 1/2 is less than 9 1/2, 8 1/2< 9 1/2

Answer:

In geometry, you can use deductive rules to prove that a given statement or conjecture is true or false using deductive reasoning.

Step-by-step explanation:

Answer:

-3x^2+2

Step-by-step explanation:

(5x - 3x^2) - (5x -2)

Distribute the minus signs

(5x - 3x^2) - 5x +2

Combine like terms

-3x^2 +5x-5x+2

-3x^2+2

Answer:

1. May 1790  2. someone broke the first copyright law  3. copyright  4. novel

Step-by-step explanation:

Answer:

Step-by-step explanation:

(x+7)/2= -8

x + 7 = -16

x = -9

(y + 1)/2 = -9

y + 1 = -18

y = -19

(-9, -19)

Step-by-step explanation:

The two triangles are similar so

BC=BC

AB=AB

AC=AC

1.)5z=20 (÷b.s by 5)

z=4

2.)8=2x+2

8-2=2x

6=2x (÷b.s by 2)

x=3

3.)3y-3=15

3y=15+3

3y=18. (÷ b.s by 3)

y=6

Answer:

5

the answer is 5 now enjoy the random letter

Answer:

the 5 is the digit in the hunreds place

Step-by-step explanation:

7 is the ones 1 is the tens 5 is the hundreds.

Answer:

6

Step-by-step explanation:

Divide 9 by 1.5 to find the scale factor:

9/1.5

= 6

So, the scale factor from the website to real life is 6

Answer:

well if you have 10 and you subtract 2 you get 8 it really simple  

Step-by-step explanation:

Answer:

Since BD bisects Angle ABC, Angle ABD = Angle DBC

[tex]3x+6=7x-18[/tex]

Subtract 6 from both sides:

[tex]3x+6-6=7x-18-6[/tex]

[tex]3x=7x-24[/tex]

Subtract 7x from both sides:

[tex]3x-7x=7x-24-7x[/tex]

[tex]-4x=-24[/tex]

Divide both sides by -4:

[tex]\frac{-4x}{-4}=\frac{-24}{-4}[/tex]

[tex]x=6[/tex]

Angle [tex]ABD=3x+6=3(6)+6=18+6=24[/tex]

Angle [tex]CBD=7x-18=7(6)-18=42-18=24[/tex]

Angle [tex]ABC=ABD+CBD=24+24=48[/tex]

Answer:

m<ABD= 6

m<CBD= -18

m<ABC= -108

Step-by-step explanation:

Answer:

X=-9

Step-by-step explanation:

Answer:

[tex]g=2T^2-6[/tex]

Step-by-step explanation:

To make g the subject, you have to isolate it in the form of g = (stuff)

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

[tex]T=\sqrt{\frac{g+6}{2}}[/tex]

Square both sides:

[tex]T^2=\frac{g+6}{2}[/tex]

Multiply both sides by 2:

[tex]2T^2=g+6[/tex]

Swap Sides:

[tex]g+6=2T^2[/tex]

Subtract 6 from both sides:

[tex]g=2T^2-6[/tex]

I think the answer is $238.

71 x $3 = $213

2 + 3 = 5

5 x $5 = $25

$213 + $25 = $238

I hope this helps.

The total cost of ticket for a group of 71 students, 3 parents, and 2 teachers to attend the museum is $360.

An expression is a number, or a variable, or a combination of numbers and variables and operation symbols.

Now it is given that,

Cost of ticket for adult = $5.00

Cost of ticket for students = $3.00

Now, Total number of students = 71

Number of parents = 3

Number of teachers = 2

So, total adults = 3 + 2 = 5

Thus, Total cost of tickets for students = 71*5 = $355

and, Total cost of tickets for adults = 5*3 = 1$5

Therefore,

Total cost of ticket for a group of 71 students, 3 parents, and 2 teachers to attend the museum = Total cost of tickets for students + Total cost of tickets for adults

⇒ Total cost of ticket for a group = $355 + $5

⇒ Total cost of ticket for a group = $360

Thus, the total cost of ticket for a group of 71 students, 3 parents, and 2 teachers to attend the museum is $360.

To learn more about expressions :

brainly.com/question/21798279

#SPJ2

Answer:

Step-by-step explanation:

Function 'f' represents the number of miles (y-values) covered by the helicopter in 'x' (x-values) minutes.

f(x) = 40 - 2x

For x = 0,

f(x) = 40 miles

For f(x) = 0,

0 = 40 - 2x

x = 20 minutes

This shows that helicopter traveled 40 miles in 20 minutes.

Similarly, given graph shows distance covered by the jet on y-axis and duration of flight on x-axis.

For x = 0,

f(x) = 500 miles

For f(x) = 0,

x = 100 minutes

Commercial jet traveled 500 miles in 100 minutes.

The total distance and time taken for each flight are illustrations of intercepts.

We have:

[tex]x \to[/tex] minutes

[tex]f(x) \to[/tex] miles

Helicopter

[tex]f(x) = 40 - 2x[/tex]

Set f(x) to 0, to calculate the x-intercept

[tex]0 = 40 - 2x[/tex]

Collect like terms

[tex]2x = 40[/tex]

Divide by 2

[tex]x =20[/tex]

Set x to 0, to calculate the y intercept

[tex]f(x) = 40 - 2x[/tex]

[tex]f(0) = 40 - 2 \times 0[/tex]

[tex]f(0) = 40[/tex]

This means that, the helicopter traveled 40 miles in 20 minutes

Commercial Jet

From the graph, the intercepts are:

[tex](x_1,y_1) = (100,0)[/tex] --- the x-intercept

[tex](x_2,y_2) = (0,500)[/tex] --- the y-intercept

This means that, the commercial jet traveled 500 miles in 100 minutes

Read more about intercepts at:

https://brainly.com/question/3334417

Answer:

10

Step-by-step explanation:

Mean = Sum of all data [tex]\div[/tex] Number of data

Let x be the other number.

[tex]30 =\frac{12+50+48+x}{4}[/tex]

Multiply both sides by 4:

[tex]\frac{4\left(12+50+48+x\right)}{4}=30* \:4[/tex]

[tex]x+110=120[/tex]

Subtract 110 from both sides:

[tex]x+110-110=120-110[/tex]

[tex]x=10[/tex]

Answer:

B:10

Step-by-step explanation:

Set up the equation

(12+50+48+x)/4=30

Add like terms

(110+x)/4=30

now multiply both sides by 4

(110+x)/4=30

4              4

110+x=120

Now subtract  110 from both sides

x=10

Hope this helps! Plz award Brainliest : )

Answer:

3/8

Step-by-step explanation:

1- 1/4 +(1/2 x 3/4)

1. subtract 1/4 to get 3/4 (how much time she has left in class).

2. multiply 3/4 by 1/2 to find how much half of 3/4 is.

3. Half of 3/4 is 3/8 so that's how much time she spent on the balance beam.

Answer:

otatoP

Step-by-step explanation: