please help me with this very hard question. Determine if each pair of expressions is equivalent. Mark all equivalent expressions.
Determine if each pair of expressions is equivalent. Mark all equivalent expressions.
4\left(3m+9-7\right)4(3m+9−7) and 6\left(2m+5-3\right)6(2m+5−3)
12z-3\left(z+5\right)12z−3(z+5) and 19+11z+2\left(-2-z\right)19+11z+2(−2−z)
5x\left(8-4y\right)5x(8−4y) and 2\left(12x-10xy\right)+16x2(12x−10xy)+16x
6-7\left(4k+2\right)6−7(4k+2) and -2\left(k+1\right)−2(k+1)
Answers
Related Questions
Beverly Hills has 300 students. Thirty-one percent of students at this school brought lunch on Tuesday. How many students brought their lunch on Tuesday?
93 students
31 students
267 students
196 students
Answers
Answer:
Step-by-step explanation:
30 percent of 300 is 90 so 31 percent would be 93.
During gym class, Lenny, Lonnie, and Lainey measure the length of their long jumps. Lenny’s jump is ⅔ times the length of Lainey’s, and Lonnie’s jump is 1⅓ times the length of Lainey’s. Whose jump is the longest? Why? pls help!!
Answers
Answer: Lonnie’s Jump
Step-by-step explanation:
(They just had to give three names that all started with L.)
Since Lenny's jump is ⅔ times the length of Lainey’s, we can tell that Lenny's jump won't be the longest because it is already smaller than Lainey's.
Since Lenny is now out of the picture, let us look at Lonnie and Lainey. Lonnie’s jump is 1 ⅓ times the length of Lainey’s. Since Lonnie's jump is longer than Laniey's, Lonnie's jump is the longest jump.
This is the graph of a polygon. What is the approximate perimeter of the polygon?
A:18.3 units
B:20.5 units
C:24.3 units
D:28.5 units
NO LINKS OR IMPROPER ANSWERS
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How can you visually compare data from two samples that are displayed in box plots?
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Answer:
The median of the 7th grade sample is greater than the 6th grade one. The 7th grade sample has greater variability.
288 feet
75.36 feet
37.68 feet
24 feet
Answers
Answer:
37.68 feet.
Step-by-step explanation:
Circumference = diameter * π
= 12 * π
= 37.68 feet.
Distance around is circumference which is pi times diameter so 3.14 times 9 = 37.68
Pls help me thank you
Answers
Answer:
258
Step-by-step explanation:
6x12x1/2 = 30
30x2=60
13x11=143
5x11=55
60+55+143=258
surface area is 258cm cubed
PLEASE HELP ME
Washington, D.C, and Baltimore, Maryland, are 2 inches apart on a map. If a scale is 1/2 inch: 6 MI, what is the actual distance between the cities?
Answers
Answer: 24 miles
Step-by-step explanation:
0.5 inches : 6 miles
Form a porportion
0.5 2
___ = ___
6 x
0.5x= 12
12÷0.5= 24
So, 2 divided by .5 is 4
6x4 is 24
So the answer is .5:6=2:24 which means the actual distance is 24 miles
which inequality does this graph show?
Answers
Answer:
y ≤ 0
Step-by-step explanation:
y ≤ 0
< or >: dashed line
≤ or ≥: solid line
≤ or <: shade below the line
≥ or >: shade above the line
Here we have:
a solid like (possibilities: ≤ or ≥)
shades below the line (≤)
Final answer, y ≤ 0
Hope this helps!
Answer:
The inequality is D) y is less than or equal to 0
Step-by-step explanation:
The yellow shaded area is on the 0 line and below it, making it less than or equal to 0.
-I hope this helps!
Jake has 900 cm³ of material. He uses 14.5 cm³ to make a right triangular prism. He wants to make a second prism that is a dilation of the first prism with a scale factor of 4.
How much more material does Jake need in order to make the second prism?
Select from the drop-down menu to correctly complete the statement.
Jake needs an additional (13.5, 28, 42.5)
cm³ of material to make the second prism.
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What is the area of a triangle with a base of 10 cm and a height of 12 cm?
60 square cm
22 square cm
120 square cm
32 square cm
Answers
Answer:
60 square cm
Step-by-step explanation:
Quickly help please!!! An angle measures 162° more than the measure of its supplementary angle. What is the measure of each angle?
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Answer:
Your answer is 18 ° and 162 °
Step-by-step explanation:
All you need to do is subtract the number you're given from 180.
Answer:
9 and 171 degrees
Step-by-step explanation:
Let the first unknown angle be x. Then the second is x + 162 degrees. Then, since supplementary angles sum up to 180 degrees,
x + x + 162 degrees = 180 degrees, or
2x = 18 degrees. Therefore the first angle is 9 degrees and the second is 171 degrees.
Martin tracked the amount of water he drank for an entire week. The bar graph shown here displays the information about his water consumption. What is the mode of the daily data A)8 B) 10 C)12 D)14
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Answer:
c)12
Step-by-step explanation:
since on the bar graph 12 occurs the most that is the mode so hope this helps!
The mode of the daily data is 12 cups.
How to identify skewed graph?A skewed distribution is a distribution having bias on one of the two sides (either left or right).
It is like leaning mountain on one side (left or right).
A left skewed graph have elongated tail on the left side of the main mountain like figure. The mountain like figure is after that elongated tail. It is also called negatively skewed graph. This graph usually has mean < median < mode.
A right skewed graph has elongated tail on the right side of the main mountain like figure. The mountain like figure is before that elongated tail. It is also called positively skewed graph. This graph usually has:
Mode < median < mean.
We are given that;
The bar graph show 8cups on monday, 12 cups on tuesday, 10 cups on wednesday, 16 cups on thrusday, 12 cups on friday, 14 cups on saturday and 18 cups on sunday.
Now,
The mode of a set of data is the value that occurs most frequently.
Looking at the bar graph, we can see that the values 8, 10, 12, 14, 16, and 18 all occur once, but only one value occurs more than once, which is 12 cups on Tuesday and Friday.
Therefore, by skewed distribution the answer will be 12.
Learn more about skewed distribution here:
https://brainly.com/question/13111221
#SPJ3
Please explain how you got your answer.
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Answer:
Step-by-step explanation:
Family Rides: bumper cars, log flume, carousel
Thrill Rides: drop tower, river rapids, swings
Coasters: wooden coaster, steel coaster, hybrid coaster
Erin's class was going on a field trip to an amusement park for a band performance. After the performance, they were allowed to choose 3 rides to go on, one from each category listed above. Given the choices, Erin created a list.
bumper cars, drop tower, wooden coaster
log flume, swings, steel coaster
carousel, river rapids, hybrid coaster
Group of answer choices
There are 24 more possibilities.
This lists all of the possibilities.
There are 6 more possibilities.
There are 9 more possibilities.
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can u help please? i don't understand this
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Answer:
D
Step-by-step explanation:
To do this you need to simplify (4^3)^5
To do this, simply multiply the powers
So, it would be 3x5
3x5=15
so the answer would be 4^15, which is D
Answer:
4^15
Step-by-step explanation:
( 4^3 )^5
Formula : -
( a^m )^n = a^(mn)
Here,
a = 4
m = 3
n = 5
( 4^3 )^5
= 4^( 3*5 )
= 4^15
Due to gravity, an object falls 16t squared feet in t seconds. You drop a backpack from a window that is 60 feet above the ground. Will the backpack hit the ground in 2 seconds?
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Answer:
No
Step-by-step explanation:
Since gravity falls at a rate of 16 feet per second, t= number of seconds.
if t=2 seconds, you would have the equation 16*2 = fall amount
16*2 =32. Since it is less than 60 feet, the backpack won't hit the ground in 2 seconds
Help Please!
I’m confuzzled!
Answers
Answer:
6[tex]n[/tex]
Step-by-step explanation:
Find the prime factors of each term in order to find the greatest common factor.
Choose 1 answer:
A) Vertical angles
B) Complementary angles
C) Supplementary angles
D) None of the above
Answers
Answer:
D) None of the above
Step-by-step explanation:
Let's use process of elimination!
A) Vertical angles are opposite angles formed by two intersecting lines. These two are adjacent, therefore rendering this statement false.
B) Complementary angles are two adjacent angles that add up to 90 degrees. There is no proof that m∠a+∠b=90°, therefore this statement is false.
C) Supplementary angles are two adjacent angles that add up to 180 degrees. Assuming A∈ED, this statement is false as well.
D) None of the answers above are correct.
Hope this helps! :D
<3
match these equations balncing steps with the discription of what was done in each step
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Answer:
CAB
Step-by-step explanation:
12x - 6 = 10
divide both sides by 2
6x - 3 = 5
add 3 to both sides
6x = 8
multiply both sides by 1/6
x = 4/3
I don't know how you want to write the answer but this is how you get each equation :/
Answer:
CAB
Step-by-step explanation:
A sports club needs to raise at least $240 by selling chocolate bars for $3.00 each. Sebastian wants to know how many chocolate bars, c, the sports club must sell in order to reach their goal. He represented this situation as 3 c greater-than-or-equal-to 240. Which graph represents this inequality?
A number line going from 718 to 722. A closed circle is at 720. Everything to the right of the circle is shaded.
A number line going from 718 to 722. A closed circle is at 720. Everything to the left of the circle is shaded.
A number line going from 78 to 82. A closed circle is at 80. Everything to the right of the circle is shaded.
A number line going from 78 to 82. A closed circle is at 80. Everything to the left of the circle is shaded.
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Answer:
240÷3.00=710
718-722=720
78-82=80
A 15% tip on a dinner bill is $2.55.
How much is the bill?
Answers
Step by step: Take 15% and divide 15% by $2.55 This will give you the amount of money that is going to be added onto the bill. When you divide it and get your answer just add the answer to your original bill.
A shopper bought shoes marked 45$ the sales tax is 7.5%
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Answer:
The shopper would have to pay $48.38.
Step-by-step explanation:
Total Price = Net Price + Sales Tax Amount.
Brainliest please help! :C
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Answer: 21
Step-by-step explanation:
[tex]N-\left(2\cdot \:7\right)=7[/tex]
[tex]\mathrm{Remove\:parentheses}:\quad \left(a\right)=a[/tex]
[tex]N-2\cdot \:7=7[/tex]
[tex]\mathrm{Multiply\:the\:numbers:}\:2\cdot \:7=14[/tex]
[tex]N-14=7[/tex]
[tex]\mathrm{Add\:}14\mathrm{\:to\:both\:sides}[/tex]
[tex]N-14+14=7+14[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]N=21[/tex]
Answer:
N = 21
Step-by-step explanation:
N - (2 × 7 ) = 7 {2 × 7 = 14}
N - 14 = 7
+ 14 +14
----------------------
N = 21
Now we can substitute:
21 - (2 × 7 )
21 - 14 = 7
Hence, the answer is N = 21
~lenvy~
A bag contains tiles of different colors. Roshan randomly selects a tile from the bag and returns the tile to the bag after recording the color. He picks a green tile 6 times, a red tile 20 times, a blue tile 7 times, a purple tile 8 times, and a black tile 4 times. Based on the results, what is the theoretical probability that the next tile Roshan picks will be green?
Answers
Answer:
6/41
Step-by-step explanation:
6 + 7 + 20 + 8 = 41 so that is number of tiles he took. 6 of those were 41 so therefore, the chance is 6/41
Answer:
There are four red marbles and six blue marbles in all, for a total of ten marbles.
Without replacement, the probability of the first marble being blue is 6/10, while the probability of the second marble being red is 4/9.
The probability of both events occurring is reduced to 4/15 by multiplying 6/10 * 4/9 = 24/90.
Step-by-step explanation:
Mark me brainliest
I like risking my points for hard homework
Answers
Answer:
The triangle and the square have the same area because they both have four squares
Step-by-step explanation:
The square has four that are easily shown but the triangle has one full one but when two are split together like some of them when you put the two together they equal one whole.
Have a wonderful day/night/afternoon
Dean and his friends went to Aqua World Water Park, where they floated down the Lazy River for 1 2 of an hour. This was 1 4 of the total time Dean and his friends spent at Aqua World. Use an equation to find the total amount of time Dean and his friends spent at the park. To write a fraction, use a slash ( / ) to separate the numerator and denominator.
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That’s 1/4 of the total amount of time they spent in the park
So, 30 minutes x 4 would be 120 minutes or 2 hours which means they spent 2 hours at the water park
Please help I have a meeting with my teacher and one of the study guide questions is "how can we interpret fractions" please help i'm giving 40 points and ill also give brainliest if you could just explain what it means
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Answer:
Fractions have different applications in the real word. We can interpret them as parts of a whole in recipes, sports team performance, test scores, time, and pizza slices in a pie. They can also be interpreted as decimals and percentages.
Step-by-step explanation:
Hope this helps!
All the correct methods to interpret fractions is,
Fractions as parts of wholes or parts of sets;
Fractions as the result of dividing two numbers;
Fractions as the ratio of two quantities;
Fractions as operators; and fractions as measures.
What is mean by Fraction?A fraction is a part of whole number, and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called fraction. It can be written as the form of p : q, which is equivalent to p / q.
Given that;
To find the method for interpret fractions.
Since, Fractions have different applications in the real word.
Hence, We can interpret them as parts of a whole in recipes, sports team performance, test scores, time, and pizza slices in a pie.
And, They can also be interpreted as decimals and percentages.
Learn more about the fraction visit:
https://brainly.com/question/5454147
#SPJ3
KA AGAIN ( 2 pdfs)
correct answers only
Answers
Answer:
B
Step-by-step explanation:
To find the constant of proportionality between y and x, divide [tex]\frac{y}{x}[/tex] for all given values of the chart. If you get the same number, then that is the constant. If they are all different numbers, then one does not exist for that function.
Using the method above, you should get:
Chart A = 2/5
Chart B = 1/5 (Correct Answer!)
Chart C = N/A
Hope this helps!
Answer:
the answer is B
Step-by-step explanation:
Hope this helps
Drag each statement to the correct location on the table. Each statement can be used more than once.
Amelia creates three dot plots to record how many minutes she practices piano on different days in March, April, and May.
Drag each statement to the box in the table next to the dot plot it correctly describes.
The measure of
center is around
30 minutes.
The measure of
center is around
20 minutes.
The measure of
center is around
10-15 minutes.
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Answer:
The measure of
center is around
30 minutes. April
The measure of
center is around
20 minutes. March
The measure of
center is around
10-15 minutes.May
Step-by-step explanation:
Answer: switch the bottom two around the answer on the bottom is wrong
Step-by-step explanation:
Elaina ran on a treadmill for 30 minutes during her workout today. She programmed the machine so that she would be running 1 mile every 12 minutes. Which equation and solution can be used to describe the number of miles, m, she had run by the end of her 30-minute workout on the treadmill?
a: 12m = 30, m = 2.5
b: 30m = 12, m = 0.4
c: 12 • 1/2 = m, m = 6
d: 1/2 ÷ 12 = m, m ≈ 0.04
answer asap for brainliest :)
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im pretty sure