Answer:
To find the mass of
1
mole of look up the atomic mass of each element and multiply it by the number of atoms contained in each element in the molecule.
mass of
1
mole of
=
Step-by-step explanation:
The options 1,2 and 5 are the correct answer.
The given equation is 1.23/[tex]10^1[/tex]=0.123.
What is the division?The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.
Now,
1) 1.23/[tex]10^1[/tex]=0.123
Here LHS=RHS
2) 123/100=1.23
Here LHS=RHS
3) 12.3/[tex]10^0[/tex]=1.23
⇒ 12.3/1=12.3
So, LHS≠RHS
4) 0.123/10=1.23
⇒ 0.123/10 = 0.0123
So, LHS≠RHS
5) 1230/10³=1.23
⇒ 1230/1000
= 1.23
Here LHS=RHS
Therefore, the options 1,2 and 5 are the correct answer.
To learn more about the division visit:
https://brainly.com/question/1575906.
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"Your question is incomplete, probably the complete question/missing part is:"
Use mental math to decide which equations are true. Drag the true equations into the box.
1.23/[tex]10^1[/tex]=0.123
123/100=1.23
12.3/[tex]10^0[/tex]=1.23
0.123/10=1.23
1230/10³=1.23
some help!!!!!!!!!!!!!!!!!!!!!!!
please help! this is very confusing and hard!
Answer: 3.8 then -3.8
3.8 then 3.8
Jason has a greater value
Answer:
Therefore -3.8 has a final greater value. (Jason)
Step-by-step explanation:
|-3.8| = 3.8
The opposite of 3.8 is -3.8.
The opposite of -3.8 is |-3.8| (or 3.8).
The absolute value is 3.8
Need answer as soon as possible or today please and thank you:)
Answer: 85
Step-by-step explanation: 85 DB is the closest approximation of 12 meters.
A construction worker drew a sketch he will use as he works.
Which statement is not true?
A. The distance from the ground to the pipe is 2.5 feet.
B. The distance between the pipe and the rope is 1 foot.
C. The distance between the ground and the rope is 5 feet.
D. The distance from the ground to the pipe is 1 foot less than the distance from the ground to the rope.
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Hii! Can someone answer this?? ÷ 2 (1+2)
Answer:
Step-by-step explanation:
This question might not be in the right configuration, but /2 cannot go at the beginning of it. what are we dividing it by? the answer to /2 (1+2) = 3
Evaluate the expression.
When x=10, y=−2, and z=−5.
| xy/-y |
Please help A-sap! Voting brainiliest for correct answer!
Answer: 10
Step-by-step explanation: The answer is 10 because xy means x times y, and since x = 10 and y = -2, 10 times -2 equals -20. Now you have to divide that by --2 which is just 2. So -20/2 equals -10. -10's absolute value is 10. Thus the answer is 10.
help me please please, please
Answer:
the first one
Step-by-step explanation:
Two friends are planning a vacation to Rome. Peter will travel 1,342 kilometers from Paris to Rome. Jonathan will travel 1,496 kilometers from Berlin to Rome. Both Peter and Jonathan will start their journeys at 5:00 A.M. Monday morning and arrive in Rome at 3:00 A.M. Tuesday morning (they will both stay in the same time zone throughout their trips). If they are both going to travel at constant speeds, how much further, in kilometers, will Jonathan travel in one hour than Peter? (help pls its urgent)
The measurements of a circular object are given in the ratio table.
a. Find the missing dimensions of other circular objects by completing the ratio ta
b. Graph the pairs of values.
Diameter,
42 mm
Circumference, C 132 mm
a. Complete the ratio table.
Answer:
8987678
Step-by-step explanation:
I use the ratio 1829x8987 to get 8987678, aka the answee
Triangle ABC is shown with exterior ∠z.
Determine m∠z.
49°
97°
131°
146°
Answer:
131°
Step-by-step explanation:
The sum of two interior angles in a triangle is equal to an exterior angle that is supplementary to the third interior angle.
The value of z:
97 + 34 = z add numbers
131 = z
Raise the product to the power (xy)^4
Explanation:
Each term inside is raised to the fourth power.
The rule is (ab)^c = a^c*b^c
An example:
(2*3)^4 = 6^4 = 1296
(2*3)^4 = 2^4*3^4 = 16*81 = 1296
Therefore, (2*3)^4 = 2^4*3^4
heeeeeeelp me, please
Find the slope of the line given its graph.
Answer:
-3
Step-by-step explanation:
Use rise over run to find the sloe
Point are (1,-1) and (0,2)
Pick one point, if we pick (0,2) we can see how the y value decreased by 3 and increased by 1
-3/1
You can do this with any points on a slope
ANWERS ASAP PLSSSS :) <3
Answer:top one is a
second one is c
nuber 3 is c
4 is b
Step-by-step explanation:
Answer:
1. x >= 4
2. x /= -4
3. The first one
4. The second one
Step-by-step explanation:
1. Since the bolded arrow is pointing to numbers greater than 4, we can tell that x is greater than 4. The dot on the number 4 is colored, meaning that four is included, thus x is greater than or equal to 4.
2. Since the bolded areas are on every point on the graph except -4, we can tell that x is every number but -4, thus x is not equal to -4.
3. The sign "<" indicates that x is less than 3. This eliminates the second option. Since there is no equal to sign, the dot isn't colored, thus, the first one.
4. The sign "<=" indicates that x is less than or equal to -1, eliminating the third option. Since it is equal to, the dot should be colored, thus, the second one.
pls pls help me I will give 15 points
Answer: the answer u have to create what it tells u
Step-by-step explanation:
Answer: 5:1
Example : Not really explanation but here is an example ^^
What is the scale factor between 4 cm and 10 cm ?
4 and 10 are divisible by 2
Length A : 4 ÷ 2 = 2
Length B : 10 ÷ 2 = 5
so the scale factor from A to B is 2:5
Please help math 100 points!
easy fractions
Answer:
B. 2 miles
Step-by-step explanation:
15 7
------- + ------
16 8
15 7(2)
------- + ------
16 8(2)
15 14 29
------- + ------ = -------
16 16 16
29
------- = 1.8125
16
1.8125 ≈ 2
I hope this helps!
Terry descends 110 feet in 10 minutes inside a cave. Which of the expressions shows Terry’s change in position from where he was before descending.
Answer: Answer D
Step-by-step explanation: Terry descended 110 feet in the air so where was he before he descended? -110 feet 110 feet away from the cave so reverse that and hes 110 feet away :) hope this helps and is right.
Answer: D is the answer
Step-by-step explanation: He was -110 feet 110 feet away from the cave so reverse that and he's 110 feet away
Jane is saving money to buy a game. The game costs $20, and so far she has saved four-fifths of this cost. How much money has Jane saved?
Answer:
she has 16$ saved
Step-by-step explanation:
20 divided 5 = 4
4 fifths of 20 is 16
THOUGHT PROVOKING The x- and y-intercepts of the graph of ax + by = k are integers. Describe the possible values of k. Explain your reasoning.
Answer:
The x-intercept is the point where a line crosses the x-axis, and the y-intercept is the point where a line crosses the y-axis. The x- and y-intercepts of the graph of the equation 3x + 5y = k are integers
Step-by-step explanation:
Step-by-step explanation: I'm only in 6th grade but i tried my best баЪЬдчю
HELP I NEED A O GIVE MY ANSWER SOON
Answer:
y=4x
Step-by-step explanation:
if you look at the line you'll see it takes 4 x's to = 1 y, every time you go right 1 you go up 4
Answer:
The slope is 4.
Step-by-step explanation:
Step 1:
Slope can also be found by using the formula, Y2-Y1/X2-X1
In this case, our first point is the origin, so x would be 0 and y would be 0. On the second point, our x is -1, and our y is -4.
So, we can make the solution, -4-0/-1-0.
You can simplify this into, -4/-1, and then into 4.
Therefore, the slope is 4.
Step 2:
M is our slope, so in our y=mx equation our m = 4.
If you substitute in the m, you get y=4x.
Answer:
y=4x.
Hope this helped!
ill give brainless if you get it right
For this equation the easiest thing to start with ratios:
16:4 (scale of 4 due to 4 x 4 being = to 16)
For the y-2 to find y you first will put 8/4 (your scaling back), so 2 so 4-2 would be 2 which makes that equal to y.
Knowing that 8 is the size on the one side these are equal on the top so x-3 had to equal 8, so 11-3=8 so...
x=11
y=2
Find the slope of the line given its graph.
help me please I'm nice :)
Answer:
ez boi 10 for ab 2 for ef
Step-by-step explanation:
uuu ar crazy
help me please please please please please, please
Answer:
10:8
Step-by-step explanation
Tara’s dog weighs 9.25 pounds. Jenna’s dog weighs 3 1/2 times as much as Tara’s dog. How much does Jenna’s dog weigh?
Answer:
8.9 lb
Step-by-step explanation:
I divided 47.17 by 5.3 47.17÷5.3= 8.9then to check my answer I multiplied 8.9 by 5.3 and got 47.17hope this helps
HELP ME NOW PLEASEEEEEEEEE!
THANK YOU! <3<3<3
Answer:You just divide the original amount by 100 (move the decimal point over two places)
750 / 100 = 7.5
Now you multiply that by the interest rate, which in this case is 7.
7.5 x 7 = 52.5
Now finally, you multiply that by the amount of years. In this case, 3.
52.5 x 3 = 157.5
That would be the amount added after three years! Remember, this is simple interest. Compound interest is a little more complex.
Step-by-step explanation: I hope this helps.
help me please I'm confused
Answer:14
Step-by-step explanation:
abcd = wxyz
ad/dc=wz/yz
12/3=4
56/yz=4
yz=14
How do you multiply and divide integers and rational numbers?
i will give brainiest please help me <3
Answer:The lengths of AB and EF are 10 and 2 respectively
If the triangle ABC and DEF are similar, based on the similarity theorem of a triangle;
AB/DE = BC/EF
5x/4 = 5/x
5x² = 20
x² = 20/5
x² = 4
x = 2
Since the value of x is 2, length of AB is 5x = 5(2) = 10
Since EF = x, hence EF = 2
The lengths of AB and EF are 10 and 2 respectively
Step-by-step explanation: