Consider the following frequency table representing the scores on a test.

Scores on a Test

Class Frequency
40–43 7
44–47 7
48–51 7
52–55 8
56–59 4

Required:
a. Determine the lower class boundary for the fifth class.
b. Determine the upper class boundary for the second class.
c. Determine the class width of each class.
d. Determine the number of scores between 39.5 and 55.5

Answers

Answer 1

Answer:

(a)56

(b)47

(c)3

(d)29

Step-by-step explanation:

From the given frequency

(a) Fifth class is 56-59.

    The lower class boundary for the fifth class is 56.

(b) Second class is 44-47.

    The upper-class boundary for the second class is 47.

(c) Class width = 47-44 = 3, 47-44 = 3.

(d) Number of scores between 39.5 and 55.5 is

    =7 + 7+ 7 + 8 =29


Related Questions

oh here you go theres the question

Answers

Answer:

in the first step you were supposed to multiply 3 and two not subrtract 5 and 3 because you have to multiply first according to P.E.M.D.A.S.

Step-by-step explanation:

Answer:

In the second step, the student did not complete the right steps in the right order.

Step-by-step explanation:

You should always complete equations using PEMDAS...Parenthesis, exponents, multiplication, division, addition, subtraction. The equation should look like this...

6*6 + 5 - 3 * 2

36 + 5 - 6

41 - 6

35

Hope this helps :)

Please help with this

Answers

Answer: pretty sure its 85

Step-by-step explanation:

Answer:

85°

Step-by-step explanation:

Line segment AB || line m

Therefore, BC is transversal.

[tex] \therefore m\angle ABC + (m\angle ACB +m\angle A D) = 180\degree[/tex]

[tex] \therefore m\angle ABC + (55\degree + 40\degree) = 180\degree[/tex]

[tex] \therefore m\angle ABC + 95\degree = 180\degree[/tex]

[tex] \therefore m\angle ABC = 180\degree -95\degree [/tex]

[tex] \therefore m\angle ABC = 85\degree [/tex]

Is 9/16 a terminating or repeating decimal plz ASAP brainley

Answers

Answer:

terminating.

Step-by-step explanation:

9/16 converted to a decimal is .5625 which is terminating

72 = –6(y + 37)
plz help

Answers

Answer:

-49

Step-by-step explanation:

you can first divide both sides by -6

so

-12 = y+37

so y = -12-37 = -49

Hw help ASAPPP
+10PTS

Answers

Y=1/4x +5 is the answer

........................​

Answers

Answer:

Step-by-step explanation:

Figure (1)

x° = 107° [Vertically opposite angles]

Since, vertical angles are equal in measure.

Figure (2)

x + 71° = 90° [Given, complementary angles]

x = 90° - 71°

x = 19°

Figure (3)

x + 21° = 180° [Given as supplementary angles]

x = 180° - 21°

x = 159°

Figure (4)

x = 129° [Vertical angles]

Figure (5)

x° = 90° [Given]

z° + 34° = 90°

z° = 90° - 34°

z° = 56°

Since, x° + y° + z° = 180° [Linear angles]

90° + y° + 56° = 180°

y° + 146° = 180°

y° = 180° - 146°

y° = 34°


Determine what type of sequence this is:
6.5, 5.3.5, 2....
Arithmetic or
Geometric

What is the common difference or common ratio of this sequence?
6.5, 5.3.5. 2....

Answers

Answer:

6.5=30, 5.3.5.2=150

It is a geometric series.

30, 150,......

a1=30

common ratio

r= 150/30= 5

an=ar^(n-1)

PLEASE HELP Maya wants to make a pyramid out of plaster for social studies class. How much plaster does she need to make a rectangle prism of what the dimensions shown below?

Answers

Maya needs 176 cubic inches of plaster to make the rectangular pyramid

In order to determine the amount of plaster needed, we need to determine the volume of the rectangle pyramid.

Characteristics of a  rectangle pyramid

It is a 3-dimensional shape. It is made up of a rectangular base and 4 triangular faces. The 4 triangular faces are joined at a vertex.

Volume of a pyramid = 1/3 x ( length x base x height)

[tex]\frac{1}{3}[/tex] x ( 11 x 8 x 6) = 176 in³

To learn more about rectangle pyramid, please check : https://brainly.com/question/15246882?referrer=searchResults

When simplifled, the value of the expression (15 - 11) 2 + 64 +4 is equal to
10
4
24
18

Answers

Answer:

I genuinely dont see the answer lol

Step-by-step explanation:

P - Parenthesis

E - Exponent

M - Multiply

D - Divide

A - Add

S - Subtract

[tex](15 - 11)2 + 64 + 4 \\ (4)2 + 64 + 4 \\ 8 + 64 + 4 \\ 72 + 4 \\ 76[/tex]

The equation for line g can be written as y = x + 5. Parallel to line g is line h, which passes through the point (-6, -4). What is the equation of line h? SHOW WORK PLEASE​

Answers

Answer:

y=x+2

Step-by-step explanation:

we know the slopes have to be equal because the lines are parallel, so the slope is 1, or written as x. plug the point given, (-6,-4), and the slope, 1, into the y=mx+b equation to find the y-intercept. then solve. then put the slope and y-intercept together for the equation of line h.

y=mx+b, m=1, x=-6, y=-4

-4=(1)(-6)+b

-4=-6+b

2=b

y=x+2

35, 32, 29, 26… what is the 101st term?

Answers

Answer:

-277

Step-by-step explanation:

Answer:

-277?

Step-by-step explanation:

Please Help, and say where u got your answer from?

How does Washington’s request foreshadow a power shift within the American colonies?

Answers

Answer:

Having done everything in his power to secure American independence, Washington decided to retire “from all public employments” after the war. He found true peace back at Mount Vernon and was happy to “move gently down the stream of life until I sleep with my fathers.” Washington’s joyful retirement was interrupted in 1787 when his country called on him again.

Step-by-step explanation:

Kim rols three 6 sided dice.
The product of her numbers is 60
a) What numbers could she have rolled?

Answers

Answer:

2,5,6

Step-by-step explanation:

2 * 5 * 6 = 60

Kim rolls three 6 sided dice.  The product of her numbers is 60. So, the numbers are 2, 5, and 6 and this can be determined by using arithmetic operations.

Given :

Kim rolls three 6 sided dice.The product of her numbers is 60.

The following steps can be used to determine the number could Kim has rolled:

Step 1 - Let the three numbers be a,b, and c.

Step 2 - Given that the product of these numbers is 60.

[tex]a\times b \times c = 60[/tex]

Step 3 - So, the possible values of a, b, and c are:

a = 2

b = 5

c = 6

Step 4 - Check the product of a, b, and c if it is 60 then it is correct.

[tex]2\times 5\times 6 = 60[/tex]

For more information, refer to the link given below:

https://brainly.com/question/13101306

The length of a football playing field is 100 yards between the opposing goal lines. What is the length of the football field in feet? Use the conversion equivalency of 3 feet = 1 yard.
a.
33.3 feet
b.
300 feet
c.
200 feet
d.
600 feet

Answers

Answer:

33.3

Step-by-step explanation:

100 divided by 3

ANSWER WUICK WILL.MARK BRANLIEST The ratio of North American Butterflies to South American butterflies at a butterfly park is 8:5. The ratio of
South American butterflies to European butterflies is 5:2. There are 80 North American butterflies at the
butterfly park.
How many european butterflies are there

Answers

Answer:

20 butterflies

Step-by-step explanation:

80:50=8:5

50:20= 5:2

20 european butterflies

Write the equation of a line that is perpendicular to y=7x−2 and passes through the point (14,8).(1 point) y=7x−90 y=10x−17 y=−17x+1067 y=−17x+10

Answers

Answer:

[tex]\huge\boxed{y=-\frac{1}{7}x+ 10}[/tex]

Step-by-step explanation:

In order to find the equation of this line, we need to note two things.

A) The slope of two lines that are perpendicular will be opposite reciprocals (that is, multiplying them gets us -1.)B) We can substitute a point inside an incomplete equation to try and find a missing value.

So first, let's find the opposite reciprocal of 7 which will be the slope to this equation.

Reciprocal of 7:    [tex]\frac{1}{7}[/tex] Opposite of [tex]\frac{1}{7}[/tex]:    [tex]-\frac{1}{7}[/tex]

So the slope of this line will be [tex]-\frac{1}{7}[/tex]. The y-intercept will change, and we can substitute what we know into the equation [tex]y=mx+b[/tex].

[tex]y = -\frac{1}{7}x+b[/tex]

Now, we can substitute a point on the graph (14, 8) into this equation to find b.

[tex]8 = -\frac{1}{7} \cdot 14 + b[/tex] [tex]8 = -\frac{14}{7} + b[/tex] [tex]8 = -2 + b[/tex] [tex]b = 10[/tex]

Now that we know the y-intercept, we can finish off our equation by plugging that in.

[tex]y = -\frac{1}{7}x + 10[/tex]

Hope this helped!

Answer:

y=−17x+10

Step-by-step explanation:

shorter version

find the length of the unknown side. round to the nearest tenth​

Answers

the answer is 3
use the formula a^2+b^2=c^2 to solve this

Lisa bought 16 1/2 pounds of sand for her
child’s sandbox she was building. What is
this in ounces?

Answers

16.5 pounds converted to ounces is 264oz.

Which expression is equivalent to -21/4/-2/3​

Answers

Answer:

ummmmmmm

Step-by-step explanation:

c

What is the sum of 9.37- 6

Answers

3.37 because the 6 technically has a decimal behind it and so u line up the decimals and subtract

Pam walks 7/8 of a mile to school. Paul walks 1/2 of a mile to school. How much
farther does Pam walk than Paul?

Answers

Answer:

Pam walks 3/8 of a mile more than Paul

Step-by-step explanation:

1/2 = 4/8

7/8 - 4/8 = 3/8

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

Answers

Simplify the expression.

18x + 7y/6

f(x) = x - 5; translation 7 units right

Answers

Answer:

f(x-7) =  x -12

Step-by-step explanation:

horizontal translation 7 units right: f(x-7)

f(x) = x - 5

f(x-7) = x-7 -5 = x -12

Suppose that 6 out of the 19 doctors in a small hospital are General Practitioners, 9 out of the 19 are under the age of 45, and 3 are both General Practitioners and under the age of 45. What is the probability that you are randomly assigned a General Practitioner or a doctor under the age of 45

Answers

Answer:

12/19

Step-by-step explanation:

We have these events

A = Doctors are general practitioners

B = doctors are under the age of 45

P(A) = 6/19

P(B) = 9/19

P(A n B) = 3/19

Then the probability of being assigned a general practitioner under age 45

P(AuB)

= P(A) + P(B) - P(A n B)

= 6/19 + 9/19 - 3/19

= 12/19

So 12/19 is the probability of getting a general practitioner under age 45.

3. The graph at the right shows
Lanna's total distance in miles
for each day she is training for a marathon. What is her distance on
day 10?
A.21 miles C.30 miles
B. 27 miles D.33 miles

Answers

Answer:

30 miles

Step-by-step explanation:

there is three miles per day so u count by 3 up to ten days and you’ll get 30 (10,30) option c

In a survey, 48% of the people questioned said they watch sports on television. Were there more people who said they watch sports or more who said they do not?

Answers

Answer:

more people said they do not watch sports

Step-by-step explanation:

Becasue 52 percent say they dont watch

Use cubic regression to find a
function that fits the following
points.
(1,-9), (2,-15), (3,-29),(-1,3)

Answers

The cubic regression equation that fits the points (1,-9), (2,-15), (3,-29),(-1,3) is given as follows:

f(x) = -x³ + 2x² - 5x - 5.

How to find the equation of regression using a calculator?

To find the equation, we need to insert the points (x,y) in the calculator.

In this problem, we have that:

The values of x are: 1, 2, 3, -1.The values of y are: -9, -15, -29, 3.

Using the calculator, the equation is given by:

f(x) = -x³ + 2x² - 5x - 5.

More can be learned about regression equations at https://brainly.com/question/16793283

#SPJ1

Find all solutions to the equation.

7sin2x - 14 sin x + 2 = -5

Answers

Answer:

Step-by-step explanation:First, group and combine like terms:

x

3

+

2

x

2

+

7

x

2

+

14

x

x

3

=

(

2

+

7

)

x

2

+

14

x

x

3

+

9

x

2

+

14

x

Next, factor out an

x

from each term in the expression:

(

x

x

2

)

+

(

x

9

x

)

+

(

x

14

)

x

(

x

2

+

9

x

+

14

)

Because

7

+

2

=

9

and

7

2

=

14

we can factor the quadratic term as:

x

(

x

+

7

)

(

x

+

2

)

can you find the value x in the f figure​

Answers

Answer:

[tex]x =[/tex] [tex]16\frac{2}{11}[/tex]

Step-by-step explanation:

According to the image, those are verticle angles, so I came up with this equation that can help me solve this problem:

5x+12+6x-10=180

11x+2=180

11x=178

x=[tex]16\frac{2}{11}[/tex]

In the mid term test Jesse scored 92%,89% and 90%.What was her main score​

Answers

Answer:

100%

Step-by-step explanation:

Answer:

90.3%

Step-by-step explanation:

I think you have a typo. I'm pretty sure you meant mean score. To find the mean, we add up all the values and divide by the number of values. Let's add 92, 89, and 90. That gets us 271. Now, let's divide 271 by 3. That gets us 90.3. That means Jesse's mean score is 90.3%.

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