Mr. Collins administered a final exam to his college chemistry class. The results are shown in the following grouped frequency polygon.
According to the data shown in the graph, which of the following statements are correct?
Answers
Answer:
Only 3 students scored between 90 and 99.
13 students earned a C
25 Students scored 70 or better on the exam.
There are 40 Students in the date.
Step-by-step explanation:
Related Questions
X+y=6 in slope intercept form
Answers
Y = -x + 6
A = 2772 +2nrh
The surface area, A, of a cylinder of radius, r, and height, h, can be found with the equation
above. Which of the following correctly
shows the cylinder's height in terms of its radius and
surface area?
A
hr
27
А
h-
r
2πY
h=r-
+
А
h=
Answers
Answer:
A÷2πr=h
Step-by-step explanation:
Area=2πrh
making h the subject = A÷2πr=h
What is the solution to the equation 5 (n- 1/10) = 1/2
Answers
Answer:
n = 0.2
Step-by-step explanation:
Apply the distributed property, so it now looks like this: 5n - 0.5 = 1/2Add 0.5 to each side, so it now looks like this: 5n = 1Divide each side by 5 to cancel out the 5 next to n. It should now look like this: n = 0.2I hope this helps!
Answer:
The answer isnt 0.2 for me it is eaither n=0, n=1/5, n=3/25, or n=13/5
Step-by-step explanation:
3. What is the slope of 3y - 4x = 12?
Answers
Answer: (3,0)
Step-by-step explanation: x=0
3y=12
divide both sides by 3 you get
y=4 now you have y axis ( equation x=0) at the point its (0,4)
but if you put y=0 then you get
4x=12
and then x=3
so i think the answer is (3,0)
I hope this helped :)
A hoodie that regularly costs $50 is on sale for $38.
What is the percent decrease in the price of the hoodie?
Answers
Answer:
76%
Step-by-step explanation:
38 multiplied by 100 = 3,800
3,800 divided by 50 = 76
Therefore the answer is 76%
The present age of ken and tammy are in the ratio of 2:5. In 6 years from now the ages will be in the ratio of 4:7. What are their present ages?
Answers
Answer:
Step-by-step explanation:
k=2
t=5
2+6=4 6=2 1=3
2=6
5=15
Now their ages are 6:15
Steve said that [5, 12) is the interval notation that represents the set of all real numbers greater than or equal to 5 and less than 12. Joe says that (5, 12] is correct interval notation. Who is correct and justify why? HEPLLLL!!!!!
Answers
Answer:
Steve
Step-by-step explanation:
Because it means greater than or equal to
-6x+13=25 what is X
Answers
Answer:
-6x = 25-13
-6x = 12
x = 12/-6
x = -2
the last washer is 7/10 pls help me thank u
Answers
There were 150 total movies at the store. They sold 70% of their stock. How many did they se
Answers
Answer:
They sold 105 movies.
Step-by-step explanation:
70÷100×150
= 0.7×150
= 105
Hope it helps :)
0.11+12.74(x+3)=0.08+13.49
Answers
Answer:
x = 2.210526316
Step-by-step explanation:
Answer:
[tex]x = −1.9434851[/tex]
Step-by-step explanation:
[tex]0.11 +1 2.74(x + 3) = 0.08 + 13.49 \\ 0.11 + 12.74x + 38.22 = 0.08 + 13.49 \\ 12.74x + 38.33 = 13.57 \\ 12.74x = 13.57 - 38.33 \\ 12.74x = −24.76 \\ \frac{12.74x}{12.74} = \frac{ - 24.76}{12.74} \\ x = −1.9434851[/tex]
If a car travels 336 miles on 12 gallons of gas, how many miles per gallon does it average (to the nearest tenth)?
Answers
Answer:
28 miles
Step-by-step explanation:
To find how many miles per gallon the car has you would just divide the miles by how how many gallons there are.
for your example it would be 336/12 = 28
What is the square root of 144444444453?
Answers
Answer:
380058.475044
Answer:
Step-by-step explanation:
380058.475044
Haper is saving money to buy a new camping tent. Each week he double the amount he saved the previous week. If he saved 1$ the first week how much will he save in 7 weeks
Answers
Answer: $49
Step-by-step explanation: if there are 7 days in a week and he is saving for 7 weeks, its 7 x 7= 49
Answer:
64$ if he doinles
Step-by-step explanation:
1,2,4,8,16,32,64
divide (2x^2-5x-3) by (x-3)
Answers
Answer:
2x + 1
Step-by-step explanation:
Answer:
The expression simplifies to [tex]2x+1[/tex]
Step-by-step explanation:
To divide the polynomials, we must first factor the trinomial into binomials so we can easily divide it by the binomial. Factoring [tex]2x^2-5x-3[/tex] results in the expression [tex](x-3)(2x+1)[/tex]. Since these two values are multiplied, the [tex](x-3)[/tex] can be canceled out by the divisor, which is the exact same expression. This leaves us with our final answer: [tex]2x+1[/tex].
Round 57,824,279 to the nearest ten-million.
57,824,279 rounded to the nearest ten-million is
Answers
Answer:
60,000,000
Step-by-step explanation:
5 and up - round up
4 and down - round down
You can see 7, so we round up.
57,824,279 is rounded to 60,000,000
Let me know if I'm wrong!
Answer:
57,824,279 to the nearest ten million is 60,000,000
Look at the 5 and the 7. Since 7 is greater than 5, round up to 6. We will have 60,000,000.
Step-by-step explanation:
6(5−8v)+12=−54 can you help me with this?
Answers
Answer:
v=2
Step-by-step explanation:
6(5-8v)+12=-54
6(5-8v)=-66
(6(5-8v))/6=-66/6
5-8v=-11
-8v=-11-5
-8v=-16
6(5-8V)=-66
(6(5-8V))/6=-66/6
5-8V=-11
-8V=-11-5
-8V=-16
V=2
Mya reads 20 books a year. She just won a ticket to Disney Land, and they ask Mya what percentage of books she reads a month, what percentage of books did Mya read in a month?
Answers
Answer:
15%
Step-by-step explanation:
A pair of boots costs $130. They are
on sale for $110.50. Find the percent
of change?
Answers
Answer:
15% off
Step-by-step explanation:
mark brainliest please
IF x=-4 and y=6 then xy-3x=
Answers
Answer:
-12
Step-by-step explanation:
The answer is -12 because -4x6=-24, and then you add 12 to the result. -24+12=-12, so there's your answer.
Square the following numbers 4,6,13,10
Answers
Answer:
16 36 169 100
Step-by-step explanation:
Answer:
16, 32, 169, 100
Step-by-step explanation:
Suppose the population of a certain city is 4903 thousand. It expects to decrease to 4113 thousand in 50 years. Find the percentage decrease
Answers
Answer:
(3175-4035)/(4035)= -.213 so a 21.3% decrease
Step-by-step explanation:
wish I helped good luck mate
Harriet paid $349.65 for 7 fruit trees. If each of the trees cost the same, what is the cost for one tree?
Answers
Answer:
$49.95
Step-by-step explanation:
Since each tree costs the same, we can find the individual cost by dividing the total cost by the number of trees:
349.65/7
= 49.95
So, the cost of one tree is $49.95
What is the equation of the following line written in general form? (The y-intercept is -1.)
A 2x + y - 1 = 0
B -2x - y - 1 = 0
C 2x - y - 1 = 0
Answers
Answer:
C
Step-by-step explanation:
the y-intercept is -1
the slope is 2/1
y=2x+-1
2x-y-1=0
-y=-2x+1
divide everything by -1
y=2x+-1
Find the value of x for which m\\n
Answers
In first situation= =given angle + x=sum of angle of triangle. =110°+x=180°=70° X=70° Similarly, 2. condition can be solved i.e-x=144° There you go! Have a awesome day.
I need help please! The one from mr.squarepants pls it’s due today !!!
Answers
Answer:
He needs to work 8.25 hours more.
Step-by-step explanation:
2.25 + 3.50 (3 1/2) - 5.75
5.75 + 6 = 11.75
20 - 11.75 = 8.25
Answer:
8.25 more hours.
Step-by-step explanation:
2.25+3 1/2+6=11.75
Then:
20-11.75=8.25
What is the area of a rectangles with the side lengths 5 inches and 1/3 inches?
Answers
Answer:
area of a rectangle is length multiplied by breath, which is the multiplication of 5 an 1/3
Answer:
The answer is 5/3 hope that helps
Step-by-step explanation:
how many quarts are there in 20 pints
Answers
Answer:
Since 1 quart is 2 pints, there are 10 pints in 20 quarts.
Step-by-step explanation:
Answer:
There are 10 quarts in 20 pints
Step-by-step explanation:
1 pint is equal to 0.5 quarts, So if you multiply 0.5 by 20, you get 10.
which of the following is equivalent to (5) 7/3
Answers
Answer: D on edg
Step-by-step explanation: hope this helps :)
What is 2.068 rounded to the nearest 0.1
Answers
Answer:
2.1
Step-by-step explanation:
Answer:
2.1
Step-by-step explanation: