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
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
Evaluate 16/9 -2/9
4 2/3
2 2/3
1 5/9
2 4/9
Answer: C, 1 5/9
Step-by-step explanation:
16/9 - 2\9
= 14/9
= 14 ÷ 9
= 14/9 = 1 5/9
= 16/9 ÷ 2/9= 1 5/9
find the slope thanks
Answer:
Hello! Just here so the other person can get brainliest. I will do the same for the other questions.
Step-by-step explanation:
You spin a spinner with four numbers on it, and flip a coin. Find the probability of the compound event.
The probability of spinning a 3 and flipping heads is:
Answer:
I think 4/7 but i'm not sure.
Step-by-step explanation:
Answer:
it's 3/4 not sure
Step-by-step explanation:
The graph of a proportional relationship is given along with an equation for a difference relationship. Which situation has a greater unit rate?
•A
• B
•C
Answer:
I think its C
Step-by-step explanation:
Answer:
its b
Step-by-step explanation:
yo welcome....
NANNIIII?!
A crafter is making a triangular flag. She has two sides of length 22 in and 36 in. What are the length possibilities for the third side?
Answer:
22 in.
Step-by-step explanation:
IN MY BRAIN
Which set of side lengths form a right triangle?
2 inches, 3 inches, 4 inches
6 inches, 8 inches, 10 inches
8 inches, 9 inches, 11 inches
10 inches, 12 inches, 13 inches
Answer:
It’s 10 inches, 12 inches, 13 inches
Step-by-step explanation:
At a trout farm, most of the trout have a length of 23.5 cm. The length of some differ from this by as much as 2.1 cm. Write and solve an absolute-value inequality to find the range of lengths of the trout.
Answer:
21.4 ≤ x ≤ 25.6
Step-by-step explanation:
The absolute value of a number is the non-negative value of the number without regard to its sign.
The absolute value of a real number x (|x|) is x for x is positive and -x for x is negative.
Let x represent the length of the trout. Since most trout have a length of 23.5 cm and differ by 2.1 cm, then x can be represented by:
|x - 23.5| ≤ 2.1
x - 23.5 ≤ 2.1 or -(x - 23.5) ≤ 2.1
x ≤ 2.1 + 23.5 or x - 23.5 ≥ -2.1
x ≤ 25.6 or x ≥ 21.4
Hence, the range of lengths of the trout is 21.4 ≤ x ≤ 25.6
1. Dixie has a bag of coins. The bag contains 10
dimes, 1 nickels, and 4 penny. She will randomly
choose a coin from the bag. What is the probability
that Dixie will NOT choose a penny?
C.
15
15
A.
B.
D. Not Here
4
Please help me I give brainilest
Answer:
Its A 11/15
Step-by-step explanation:
There are 15 probabilities and 4 of them are pennies which you cant choose from that elimenates 4 possible outomes so subtract the 4 you get 11.
what is half of 3.5
1.25 Step-by-step explanation:
Answer:
1.75
Step-by-step explanation:
3.5/2 = 1.75
hope this helps
jester has a piece of wood measuring 1 and 2/3 m.he needs to cut in pieces measuring 3/4 m long.how many pieces of wood did jester cut
Answer:
2 pieces
Step-by-step explanation:
Given
[tex]Length = 1\frac{2}{3}m[/tex]
[tex]Pieces = \frac{3}{4}m[/tex]
Required
Calculate the number of pieces
To do this, we have to divide the length of the wood by the length of each piece.
Represent this with x
[tex]x= \frac{Length}{Pieces}[/tex]
[tex]x= 1\frac{2}{3}/\frac{3}{4}[/tex]
Convert mixed numbers to improper fraction
[tex]x= \frac{5}{3}/\frac{3}{4}[/tex]
Change division to multiplication
[tex]x= \frac{5}{3}*\frac{4}{3}[/tex]
[tex]x= \frac{20}{9}[/tex]
[tex]x = 2.22[/tex]
[tex]x = 2[/tex]
The quotient of 56 and a number
Answer:
yes
Step-by-step explanation:
The average weight of a mature human brain is approximately 1400 grams. What is the equivalent weight in pounds? Use the conversion equivalency 1 kilograms (kg) = 1000 grams (g) and 2.20 pounds (lb) = 1 kg.
a.
5.11 lb
b.
3.08 lb
c.
636 lb
d.
25.8 lb
Hello? Someone please help me with this.
Answer:
16x-6
Step-by-step explanation:
well in order to do so
u have to multiply 2 to 8x to get 16x
and then, multiply the 2 to -3 to get -6
this is the distributive property form. and that's how u get ur answer
5x - 4y = -8 x + 4y F-16
4x-5+2r= -11
What is the value of x?
composite numbers to 30
Answer:
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, Step-by-step explanation:
Practice:
3. The table shows the attendances y(in thousands) at an amusement park from 2005 to
2014, where x = 0 presents the year 2005.
Year, x
Attendance, y
0
850
1
845
2
828
3
798
4
800
5
792
6
785
7
781
8 9
775 760
The equation of the line of best fit is:
a
Interpolation: Approximate the year with b. Extrapolation: Predict the attendance at
an attendance of 770,000 people.
the amusement park in 2017.
omg that was hard I see that in my module to
Use the scale factor to find the area of the enlarged figure. Explain your steps.
A small rectangle has a length of 8 and width of 4. A large rectangle has a length of 25.6 and width of a.
9514 1404 393
Answer:
327.68 units^2
Step-by-step explanation:
The area of the small figure is ...
area = length · width
area = (8)(4) = 32 . . . . square units
The scale factor is ...
scale factor = large length / small length = 25.6/8 = 3.2
The area of the larger rectangle will be the small rectangle area multiplied by the square of the scale factor:
(32 units^2)(3.2^2) = 327.68 units^2
_____
Additional comment
We note the width is half the length, so we could figure the larger rectangle's width at 25.6/2 = 12.8 units. Then its area would be
length · width = (25.6 units)(12.8 units) = 327.68 units^2
This seems easier to me, but is not the method required by the problem statement.
Answer:
The scale factor of the enlargement is 3.2. Square the scale factor to get 10.24. Find the area of the original figure, which is 32. Multiply 32 and 10.24 to get the area of the enlarged figure, which is 327.68.
Step-by-step explanation:
This is the sample response but I would use the other pearsons answer because it is NOT the sample response.
Have a great day!
plz help me i need it done
Answer:
Final answers are ,
• 9
•-7
• 7
• -85
Step-by-step explanation:
Given that when we input a number then first it will be multiplied by 2 and finally decreased by(-1) .
Input 5 :-
• Firstly Multiplying it by 2 → 2× 5 = 10
• Subtracting 1 from it → 10 - 1 = 9
Output = 9
====================================
Input (-3) :-
• Firstly Multiplying it by 2 → 2× -3 = -6
• Subtracting 1 from it → -6- 1 = (-7)
Output = (-7)
====================================
Input 4 :-
• Firstly Multiplying it by 2 → 2× 4 = 8
• Subtracting 1 from it → 8 - 1 = 7
Output = 7
====================================
Input (-42) :-
• Firstly Multiplying it by 2 → 2× -42 = -84
• Subtracting 1 from it → -84 - 1 = -85
Output = (-85)
====================================
Heather studied for 30 minutes several days in a row. Before her test, she also studied for 10 more minutes. The total amount of time she spent studying was 280 minutes. Write and solve an equation to determine how many days she studied. Let d represent the number of days.
Answer:
9 days
Step-by-step explanation:
280=30d+10
270=30d
9=d
9.) Is the graph below line your nonlinear?
Answer:
Linear.
Step-by-step explanation:
A linear graph is any straight-line graph. That's a straight line.
Answer:
No
Step-by-step explanation:
This graph is not a non-linear line, in fact, it's a linear line. A non-linear line is a line that is not straight, a line that is curved. And as you can see in this graph, the line is straight which makes it a linear line.
Hope this helped!
Find the missing side length in the right triangle below.
Answer:
69
Step-by-step explanation:
3x+y=10
Which are solutions of the linear equation select all that apply
(1,6)
(2,4)
(3,1)
(4,-1)
(5,-5)
using the numbers 3, 5, and 8, can you write nine proper fractions and nine improper fractions? You may use each number only once within a fraction.
Answer:
First, we can write a fraction as a/b
Where a is the numerator, and b is the denominator.
A proper fraction is a fraction where the numerator is smaller than the denominator.
Using only the given numbers (only once per fraction), some examples of proper fractions are:
3/5
3/8
5/8
3/85
3/58
5/83
5/38
8/35
8/53
You can see that in all of them the denominator is larger than the numerator.
The improper fractions are those where the numerator is equal or larger than the denominator.
The 9 examples using the given numbers are:
5/3
8/5
8/3
35/8
38/5
53/8
58/3
83/5
85/3
PLEASE ANSWER THIS ASAP, I WILL BE GIVING YOU A THANKS!
Answer:
cccccccccccccccccccccc
Answer:
It is D.) Infinite Solutions
Step-by-step explanation:
0.5(10x + 6) = 2x + 3 + 3x
5x + 3 = 5x + 3
32. A volleyball team played 25 games. The ratio of games won to
games lost was 6:4. How many games did the team win?
Number of volleyball games team win is 15 games
Given that;Number of volleyball games = 25 games
Won to lost ratio = 6:4
Find:Number of volleyball games team win
Computation:Number of volleyball games teams win = 25[6 / (6+4)]
Number of volleyball games teams win = 25[6 / 10]
Number of volleyball games team win = 15 games
Learn more:https://brainly.com/question/24140426?referrer=searchResults
How did I make this equivalent fraction?
1
3
JI
4
12.
4
Qual a equivalência da fração
Answer:
Both the numerator and denominator were multiplied by 4
Answer:
find a number that is divisible by both the denominator and the numerator
Step-by-step explanation:
divide 4/12 by 4, so you get 1/3
Aniyah is driving home at a constant speed. After 20 minutes, she is 70 miles from
home. After 1 hour, she is 40 miles from home. What equation models her distance
from home, y, as a function of time, x? Show your work.
Answer:
Aniyah is driving home at a constant speed. After 20 minutes, she is 70 miles from
Step-by-step explanation:
home. After 1 hour, she is 40 miles from home. What equation models her distance
from home, y, as a function of time, x? Show your work.
Substitute x=3y+1 into the expression-x -7 and simplify
Answer:
Step-by-step explanation:
x-7
3y+1-7
3y-6