Step-by-step explanation:
When adding fractions of different denominators, first find the LCM of the denominators, but she ignored that.
11/4+2/3
LCM=12
(33+8)/12
41/12
The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students.
Which statement is most accurate based on the data?
Answer: A
Step-by-step explanation: As it is a data set that has been equally represented, it is ok to predict.
Expand and combine like terms.
(4b^2+3)(4b^2-3)
Answer:
16b^4-9
Step-by-step explanation:
Factoring gives us 16b^4+12b^2-12^2-9. Simplifying gives us the answer which is 16b^4-9
Answer:
[tex]16b^4-9[/tex]
Step-by-step explanation:
When multiplying binomials, we can use a method called FOIL (First-Outside-Inside-Last).
For [tex](t_1+t_2)(t_3+t_4)[/tex], let:
[tex]t_1\implies \text{First Term},\\t_2\implies \text{Second Term},\\t_3\implies \text{Third Term},\\t_4\implies \text{Fourth Term}[/tex]
In the FOIL method, the steps go:
[tex]\text{\textbf{F}irst: Multiply the first and third terms (first term of each binomial)},\\\text{\textbf{O}utside: Multiply the first and fourth terms},\\\text{\textbf{I}nside: Multiply the second and third terms},\\\text{\textbf{L}ast: Multiply the second and fourth terms (last term of each binomial) }[/tex]
Given [tex](4b^2+3)(4b^2-3)[/tex], we have:
[tex]\text{First: }4b^2\cdot 4b^2,\\\text{Outside: }4b^2\cdot -3,\\\text{Inside: }3\cdot 4b^2,\\\text{Last: }3\cdot -3,\\\rightarrow 16b^4-12b^2+12b^2-9[/tex]
Combine like terms:
[tex]\boxed{16b^4-9}[/tex]
What is 50% of 174.95?Thanks.
The prices for 7 different totes are $52,$22, $50, $44, $60, $48, and $52. What is the outlier in the data set?
Answer:
$22
Step-by-step explanation:
An outlier in a data set is the one farthest from the other data points. 22 is far away from the other points, so that is the outlier.
Answer:
22
Step-by-step explanation:
It is farther off than from all of the rest of the #'s.
If a Car can drive 35 miles on 7 gallons of gas, how many miles can it travel on 2 gallons of gas (assuming miles per gallon is proportional)? Give and explain your answer.
Answer:
10 miles
Step-by-step explanation:
35/7 is 5 so therefore if you do 5+5+5+5+5+5+5 is 35
so that means 2 gallons which is 10
the width w of a rectangular swimming pool is x+5 the area a of the pool is x^2+4-5
what is an expression for the length of the pool? step by step
Answer:
x-1
Step-by-step explanation:
Area= x^2+4x-5
Width= x+5
Area= Length*breadth
x^2+4x-5=length*x+5
Length=x^2+4x-5/x+5
Therefore, length= x-1
Answer:
x-1
Step-by-step explanation:
i got this problem on khan academy
Malik and Janae are practicing making free throws at the basketball court.
Malik makes 3 baskets for every 4 shots he takes.
Janae makes 4 baskets for every 5 shots she takes.
Which number accurately completes the table?
Answer:
12
Step-by-step explanation:
Hope this is correct, if it isn't then feel free to let me know so i can fix my mistake. I'm sorry in advance if it isn't correct.
12
Step-by-step explanation:
I WAS THE FIRST ONE TO SAY IT!
What is 60,000 + 3,000 + 20 + 9 in standard form
Answer:
the standard form is 63029
Jamie has a deck of 60 sports cards, of which some are baseball cards and some are football cards. Jamie pulls out a card randomly from the deck, records its type, and replaces it in the deck. Jamie has already recorded nine baseball cards and 11 football cards. Based on these data, what is, most likely, the number of baseball cards in the deck?
A. 20
B. 22
C. 25
D. 27
Please don't just give me an answer please give me a explanation because I'd like to know how to do this equation next time it seems so familiar but I just can't remember besides if you do I'll give you brainly ! = )
Answer:
If it were like that, 9/20 would be baseball card. 9/20 = X/60
x=27 since 20x3=60
So the answer is 27
Step-by-step explanation:
help please I'll mark brainliest
Answer:
q1 -10
q2c
Step-by-step explanation:
3.3 + 10m = 7.81 find the value of m ill give brainliest
Answer:
m = .451
Step-by-step explanation:
3.3 + 10m = 7.81
Subtract 3.3 from each side
3.3-3.3 + 10m = 7.81-3.3
10 m =4.51
Divide each side by 10
10m/10 = 4.51/10
m = .451
Answer:
0.451
Step-by-step explanation:
3.3+10m=7.81
10m = 7.81-3.3
10m = 4.51
m = 4.51/10
m = 0.451
SOLVE AND NO LINKS
x – 3 = 5
Answer:
8 = x
or
x = 8
Step-by-step explanation:
x – 3 = 5
x + -3 + 3 = 5 + 3
x = 5 + 3
(5 + 3 = 8)
x = 8
Answer:
x=8
Step-by-step explanation:
x-3=5
x-3+3=5+3
x=8
What is the volume of the composite figure shown? Use 3.14 for π.
Answer:
25.12
Step-by-step explanation:
the formula of a cone is pi r^2 * h/3
r = radius and h = height
the radius is 2 and the height is 3
and the question says use 3.14 instead of pi so
we have
3.14 * 2^2 * 6/3
2*2 or 2^2 = 4
3.14 * 4 * 6/3
6/3 = 2
3.14 * 4 * 2
4*2 = 8
and 8 * 3.14 is 25.12
the mark obtained by 20 students in mathematics in the examination are given below.
group the data into the class interval of length 10 and construct a frequency distribution.
table with tally marks
27, 38,25,18,9,24, 48, 15,27,35
23,45,32,16,26,39,20,33,40,37
Answer:
Step-by-step explanation:
class interval
9-1920-2930-3940-49Frequency
5762tally
IIIIIIIIII IIIIIII IIINote: the fifth tally marks crosses the first 4 marks
Which sentence correctly compares the two points shown on the number line? -1 > 0.25 , -1 < -0.25, -0.25 < -1
Answer:
-1 < -0.25
Step-by-step explanation:
-1 is less than -0.25
less than symbol = <
greater than symbol = >
Example; -1 > -2 --- negative one is greater than negative two OR -2 < -1 --- negative two is less than negative one
Answer:
-1<-0.25
Step-by-step explanation:
(Geometry Question) : Given the points A(-3, -4) and B(2, 0), find the coordinates of the point P on directed line segment AB that partitions AB in the ratio 2:3.
show all your work please and thank you let me show you an example of showing your work
the second one is an example from my other one I just asked
Answer:
so we jsut show the work for the first question I'll write in the comment box then
Answer:
700 cubic inches
Step-by-step explanation:
The question asks for how much volume the box can hold. We multiply the length (14), width (10), and height (5) to get the volume. 14 · 10 · 5 = 700.
The box can hold 700 cubic inches.
HELPPPPPPPPPP [WILL GIVE U BRAINLEST AND THANKS]
Answer:
C
Step-by-step explanation:
Just + all of the numbers together.
9 hundreds = _____ tens
Answer:
90
Step-by-step explanation:
900 in groups of 10 would need 90 groups to equal 900.
Answer:
90
Step-by-step explanation:
We also have 9 tens, which means we can say 9×10=90. And we have 24 ones, which means we can say 24×1=24.
how do I graph k(x)=13 x
show work plz.
Answer:
Step-by-step explanation:
Use the slope and y intercept, or 2 points
Slope: 13
y-int: 0,0
x|y
0|0
1|13
surds.... plzz help, matching up, thank you
Answer:
1 - D
2 - B
3 - C
4 - A
I hope this helped!
Together, Matthew and Daniel have 67 DVDs. Matthew’s collection has 3 times as many DVDs as Daniel’s collection. Which equation can be used to determine the number of DVDs in Daniel’s collection?
A. 3x - x = 67
B. x + x = 67
C. 3x + x = 67
D. 3x = 67
Answer:
C. 3x + x = 67
Step-by-step explanation:
Means Mathew has 3 units and Daniel has 1 unit.
There's 4 units in total.
4x = 67
3x + x = 67
3x is Mathew's DVDs
x is Daniel's DVDs
Which measurements could create more than one triangle?
Answer:
A
Step-by-step explanation:
Find each percent of change. State whether the percent increase or decrease. Please show your work.
A) Original : 55 New : 75
B) Original : 233 New : 200
Find the missing dimensions
Answer:
short base: 6 yards
long base: 8 yards
Step-by-step explanation:
Our understanding of your figure is shown below.
The question says the "shortest side" and the "width" have the same dimension. If the "width" is a reference to "height 6 yards", then it seems the "shortest side" is 6 yards. Since the slant sides are longer than the height, the "shortest side" is also the "short base."
The short base is 6 yards.
__
The long base overhangs the short base by 1 yard on either end, so it is a total of 2 yards longer than the short base. It it 6+2 = 8 yards long.
The long base is 8 yards.
Hope this is correct, if not then feel free to let me know. I'm sorry in advance if it is incorrect.
Write an addition or subtraction equation
Answer:
0-2=-2
Step-by-step explanation:
We start at 0, and go down 2, so we have the equation 0-2=-2
Hope this helps!
--Applepi101
Question on file. Thx in advance
what is the y-intercept for this relationship?
Answer:
A, I belive this is correct.
Step-by-step explanation:
If this is wrong please feel free to let me know. I'm sorry in advance if this is incorrect.
How many times as great as
2 x 103 is 8 x 105?
Answer:gấp 103/420
Step-by-step explanation:2*103 =206
8*105=840 rồi lấy 206/840 =103/420 đáp án
Rule 1: Multiply by 2, then add one third starting from 1. Rule 2: Add one half, then multiply by 4 starting from 0. What is the fourth ordered pair using the two sequences? (5, 10) (four and two thirds, 42) (21, 170) (two and one third, 2)
