Answer:
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.
Answer:
In a physical change the state or physical appearence of the matter changes but the kind of matter in the substance does not. In a chemical change, the compostition of matter changes. One new substance with a unique properties is made.
Step-by-step explanation:
How long does it take the penguin to walk 45 feet? explain
Answer:
It will take the penguin 26.95 sec to walk 45 feet.
Step-by-step explanation:
Step-by-step explanation: Given. Distance = d = 10 feet. Time = t = 6 sec. First of all we have to calculate speed . Let s be the speed, then. Now, How far does the penguin walk in 45 seconds? Here we know the speed and the time . So, s=1.67 ft per sec. t = 45 sec
Are the shapes similar?
Yes
No
Attached photo above
Answer:
yes
Step-by-step explanation:
They are both robasus and both have parallel lines
PLEASE ANSWER
Students in the science lab are measuring the mass of an object on a triple beam balance. The object has a mass of 38 grams. Complete the table below with the absolute and percent error for each students’ measurement. Round your answer to the nearest tenths place.
Answer:
The answer is 40
Step-by-step explanation:
have a nice day!
The absolute error of Danielle, Iris, and HB is 2,6 and 1 gram respectively. The percentage error of Danielle, Iris, and HB are 5%,15%, and 2.5% respectively.
What is the percentage?The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
As per the given,
Actual mass = 38
Danielle error = 40 - 38 = 2 grams
% error = 2/40 x 100 = 5%
Iris error = 4 - 34 = 6 grams
% error = 6/40 x 100 = 15%
HB error = 41 - 40 = 1 grams
% error = 1/40 x 100 = 2.5%
Hence "The absolute error of Danielle, Iris, and HB is 2,6 and 1 gram respectively. The percentage error of Danielle, Iris, and HB are 5%,15%, and 2.5% respectively".
For more about the percentage,
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Don't you just hate missing 2 weeks of school and coming back to this.
:) Please help am stupid.
Answer:
x would = 10 and y would = 5
evaluate the expression | 10 | =
Answer:
10
you go positive for negative numbers and stay positive for positive numbers
Answer:
before i answer this, do you still need help with this question???
Step-by-step explanation:
HELp with this l would give you brainlist
Answer:
10
Step-by-step explanation:
So if you know that 10 skeins makes 4 scarves... then 20 skeins makes 8 scarves (because you doubled it)
and if 10 skeins make 4 scarves... then half that number of skeins should make half the number of scarves... so 5 skeins makes 2 scarves
So we know that 20 skeins makes 8 scarves and 5 skeins make 2 scarves... all we have to do is add up the skeins and find we get 10 scarves
Taco Delight gives a free taco to every 12th customer and a free dessert to every 15th customer. Which customer would be the first one to receive both a free taco and a free dessert? Which customer would be the second one to receive a free taco and free desert?
Answer:
8th customer when i did the math
Step-by-step explanation:
...
Answer:
the first person to get a free taco would be the 60th customer since 60 is a common multiple of both 12 and 15 and I believe the second would be 120th customer
help would be nice :p *pls don't leave this qestion.....I will cry :|*
Which is the best description of the equivalency of the two expressions?
Expression 1
5 x squared minus 2 x minus 4 + 6 x + 3
Expression 2
6 x squared minus 6 x + 6 minus x squared + 10 x minus 7
A.) The two expressions are not equivalent because when x = 2, the two expressions do not have the same value.
b.)The two expressions are not equivalent because when they are simplified, they do not have the same coefficients for the x squared and x terms.
c.) They are equivalent because the sum of the constants is the same in both expressions.
D.) They are equivalent because when x = 2, the two expressions have the same value.
Answer:
D
Step-by-step explanation:
i think its D hope this helped!
Write 2 4/7 as an improper fraction
Answer:
18/7
Step-by-step explanation:
you multiply 2 by seven and then add four to the numerator while you keep the denomenator
Answer:
18/7Step-by-step explanation:
[tex]2\frac{4} {7} \\\\=\frac{7\times2+4}{7} \\\\=\frac{14+4}{7}\\\\=\frac{18}{7}[/tex]
Find the Probability of P(bankrupt)
PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!
Answer:
2.4x-4.4
Step-by-step explanation:
0.3(4x-8)=1.2x-2.4
-0.5(2.4x+4)=1.2x-2
1.2x-2.4+1.2x-2=2.4x-4.4
Winston, an architect, is adding a stalrway to a parking garage. The stairway must be 3 meters high, and he has enough room on the ground for the staircase to reach the ground 9 meters away, which will satisfy local building codes. To the nearest tenth, how long will the stair stringer be?
A. 9.0 meters
B. 9.5 meters
C. 81 meters
D. 90 meters
Please help? tysvm! :D
Answer:
Area: C
Perimeter: A
Volume: B
cubic units: D
Answer:
Area=C
Perimeter= A
Volume=B
Cubic Units= D
Step-by-step explanation:
Area is the amount of 2-dimensional object.
Perimeter is the distance around a two-dimensional object.
Volume is the number of cubic units needed to fill the space inside a three-dimensional figure.
Cubic Units is the unit used to measure volume
PLZ HELP I NEED HELP i've try solving it but i never get it right PLZ HELP
Answer: and the answer is 2x + 7
Step-by-step explanation:
as it is a polynomial in one variable, it has only one solution.
Hope it helped u,
pls mark as the brainliest
^_^
Pls help with these 4 questions!
Answer:
It is A.
Step-by-step explanation:
also, this is one question. A, B, C and D are just answers.
Answer:3.233
Step-by-step explanation:
Relationship B has a lesser rate than Relationship A. Does this graph represent Relationship A. What table could represent Relationship B?
{Time (weeks) 3 6 8 10
{ Plant growth (in.) 4.8 9.6 12.8 16
{Time (weeks) 3 4 6 9
{Plant growth (in.) 6.3 8.4 12.6 18.9
{Time (weeks) 3 6 8 10
{Plant growth (in.) 2.25 4.5 6 7.5
{Time (weeks) 3 4 6 9
{ Plant growth (in.) 5.4 7.2 10.8 16.2
The first-quadrant graph showing a ray from the origin through the points begin ordered pair 2 comma 3 ends ordered pair and begin ordered pair 4 comma 6 end ordered pair. The horizontal axis label is Time in weeks. The vertical axis label is Plant growth in inches.
Answer:
the answer im pretty sure is A. (weeks) 3 6 8 10 (in) 4.8 9.6 12.8 16
Step-by-step explanation:
Help please tysvmmm !!!!!11
Answer:
D,4 times as large as the expressian
Step-by-step explanation:
because 4x is multiplucation so it means that it multiplys that number
Can someone help me please
Answer:
The slope is [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
If you graph out the points on a line, you can clearly see that the rise between the points on the graph is 2, while the run is 4. This would give you [tex]\frac{2}{4}[/tex], so if you simplify the fraction, you would get [tex]\frac{1}{2}[/tex].
im a bit confused so please help me quick!
Research discovered that the ratio of regular coffee drinkers to regular tea drinkers in Canada is 4:1. Jack concluded from this that if 400 people were surveyed, 100 of them would most likely be regular tea drinkers. Is he correct? Explain.
Answer:
yes you are correct
Step-by-step explanation:
Fill in the blank to make it a true statement: 50 ___ |-50|
Group of answer choices
=
Answer:< i took this quiz
Step-by-step explanation:
Which of the following expressions represent the distance between -6 and 7 on the number line?
Answer:
C
Step-by-step explanation:
The lines mean the distance away from 0. When i say lines, I mean the two "l" that accompany the numbers. I forgot what there called (good job me).
Since we want to know how far apart they are, we need to add them.
Answer: If the equations are in absolute value then C, D, F. IF not in absolute value than just F.
Step-by-step explanation:
there is a distance of 13 between the two points so find any that have a total of 13.
plz help quick. the sum of two numbers is 11. Three times the first number minus the second number is -3. what are the numbers?
Answer:
the first number is 2, the second number is 9 :)
Step-by-step explanation:
brainliest? :)
A plastic bin contains red, yellow, and green key chains. Out of 350 key chains, 10% percent are yellow. Of the remaining key chains, are green. How many red key chains are inside the bin?
A.
26
B.
35
C.
126
D.
189
Answer:
c.126 red
Step-by-step explanation:
red+green+yellow=350
10% out of 350 are yellow
0.1 times 350=35
350-35=315
3/5 out of 315 are green
red is not green so
2/5 of what is left is red
2/5 of 315 is red
2/5 times 315=430/5=126
126 red
what is 11/15 +[-7/12 = ?
Answer: 3/20
Step-by-step explanation:
Which of the following situations could be described by the expression m – 1.85?
A. Rosalita ran 1.85 miles yesterday, and m miles fewer today. How many miles did she run today?
B. Rosalita ran m miles yesterday, and 1.85 miles farther today. How many miles did she run today?
C. Rosalita ran 1.85 miles yesterday, and m miles farther today. How many miles did she run today?
D. Rosalita ran m miles yesterday, and 1.85 miles fewer today. How many miles did she run today?
What is the x and y intercept of the following function
y=1-x
A store buys cell phones from the manufacturer for $34.40 and marks them up by 85%. What is the sale price of the phones in the store?
Answer:
$5.16
Step-by-step explanation:
34.40 divided by .85 is 29.24. Subtract the diffrence of 34,40 and 29.24 which is $5.16. Hope this helps :)
He reflected awhile, rubbing his nose and cheeks, then skirted to the left, stepping gingerly and testing the footing for each step.
What does it mean if he stepping gingerly?
Ahaha I hate everything jk lol but fr tho what is 4+4?
Answer:
8
Step-by-step explanation:
4 + 4 = 8
Your test scores in science are 83 and 87. What possible scores can you earn on your next test to have a test average between 85 and 90, inclusive?