The number of moles is 1.4484 moles
What is one mole?
The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12
The 6.022 x 10²³ number is known as the number of Avogadro or the constant of Avogadro.
(12 g C = 1 mol C atoms = 6.022 × 10²³ C atoms)
Given data ,
Grams of Hydrogen = 1.46 grams of Hydrogen
Now , 1 g of Hydrogen has 0.99212 mole
So , to calculate the number of moles in 1.46 grams of Hydrogen =
Grams of Hydrogen x 0.99212 mole
The number of moles in 1.46 grams of Hydrogen = 1.46 x 0.99212
= 1.4484 moles
Hence , the number of moles in 1.46g of Hydrogen is 1.4484 moles
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which set of sides will not make a triangle
Find the distance between each pair of points. (-7, 6) and (0,5)
8 spaces from (0,5) and (-7, 6)
Go up 1, go left 7 spaces.
How can you find the length of an arc
If I have a 1/4 measuring cup and need 1/8 what do I do?
It’s 11:15 at night and I can’t even do basic math. someone help me so I can get this turned in and out of the way
Answer:
1/8 is half of 1/4 so, you need to measure half cup
Find the area of the following figure and choose the appropriate result.
Area is the entire amount of space occupied by a flat (2-D) surface or an object's shape. The area of a plane figure is the area that its perimeter encloses. The quantity of unit squares that cover a closed figure's surface is its area.
We have a figure consist of Square and Triangle.
So, Area of Figure
= Area of Square + Area of Triangle
= 11.1 x 11.1 + 1/2 x 11.1 x 11.4
= 123.21 + 11.1 x 5.7
= 186.48 square cm
Thus, the required Area is 186.48 square cm.
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10 POINTS HELP ASAP!!!
Answer:
I think it is -7
Step-by-step explanation:
Mikhail bought 7 shirts and 4 pairs of shoes for $490. His friend, who paid the same prices, bought 5 shirts and 2 pairs of shoes for $290 How much does each shirt and each pair of shoes cost ?
Answer:
The shirts were $30 each and the shoes were $70 each.
Step-by-step explanation:
7s + 4h = 490
5s + 2h = 290
Answer:
I think it is 44.5 im not sure
Swim flippers are helpful for scuba
diving. You can rent them daily for
$15 per day, plus 8% tax. How
much will it cost, including tax, to
rent them for three days?
Answer:
The answer would be $48.60.
Step-by-step explanation:
Some people could probably answer it better but here's my way: When you have a percentage of something you bring it to the decimal. 8% would be 0.08. We take this and multiply it by the cost: 0.08 times 15, giving us $1.2 per $15 dollars spent. 1.2 times the 3 days would be 3.6 and 15 times 3 is 45 together this would give you the grand total of $48.60.
john was looking at his streaming music stats. the ratio of songs he liked to his dislike was 5:2. if he listened to 91 songs total how many did he like?
Answer:
65
Step-by-step explanation:
the ratio of songs he liked to disliked was 5:2. if he listened to 91 songs total . Therefore the number of songs liked by the john be 65 songs .
The master roofer wants to put the ladder on the side of the house but she doesn't
know if it can be set at the proper angle. What will be the angle of elevation if the
10-foot long ladder is placed 1 feet from the wall?
Answer: About 84.261 degrees
Step-by-step explanation:
To find the angle of elevation, we can create a triangle and solve for the angle.
First, we can imagine a triangle with side A being the ground between the base of the ladder and the wall, side B being the wall (from the base of the wall to where it touches the top of the ladder), and side C being the ladder (from where it touches the ground to where it touches the wall).
In the problem, it has already given us two of the side lengths we need to solve for the angle of elevation:
1. We know that the ladder is 10 feet tall, so we can say that side C is 10.
2. We know that the ladder base is placed 1 foot from the wall, so we can say that side A is 1.
The angle of elevation is the angle that the ladder is tilted from the ground, or the angle between the ground (side A) and the ladder (side C). These sides relative to the angle would be the adjacent (side A) and the hypotenuse (side C).
To calculate for the angle, we can use the cosine function. (cos = adjacent / hypotenuse)
To find the angle of elevation (which we can call angle b), we can use:
cos(b) = A / C
arccos(A / C) = b
(Note: arccos is the inverse of the cos function)
Then, we can plug in the values and get:
b = arccos(1 / 10)
b = 1.471 radians OR 84.261 degrees
Find the first three iterates of the function f(z) = z2 + c with a value of c = 2 - 3i and an initial value of z0 = 1 + 2i.
a.
-1 + i, 2 - 3i, -17 - 29i
c.
1 + i, 2 + 3i, -17 - 29i
b.
-1 + i, 2 - 5i, -19 - 23i
d.
1 + i, 2 + 3i, -19 - 23i
Answer:
A
Step-by-step explanation:
What graph represents a function?
Answer:
Bottom answer
Step-by-step explanation:
Although I cannot see the answer labels, the answer is the very bottom graph. The way you can find a functional graph is if you add vertical lines going down and that there is only one point that crosses it, not two. It is kind of difficult for me to explain, so if you need help, I suggest you look up how to know when a graph is a function or not.
if you roll a 6-sided die what is the probability of rolling a one?
Answer:
the probablity of rolling a one is 1/6
Step-by-step explanation:
Answer:
one-in-six probability
Step-by-step explanation:
Say, you do roll that die. You have no clue what it's going to land on because each number has a one-in-six chance of being rolled. Therefore, the probability of rolling a one on a six-sided die is one-in-six
Find the solution to this system of equations and write it as an ordered
pair (x, y) *
3x + 3y = -18
2x - 4y= -6
Answer:
Step-by-step explanation:
Simplifying
3x + 3y = -18
Solving
3x + 3y = -18
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3y' to each side of the equation.
3x + 3y + -3y = -18 + -3y
Combine like terms: 3y + -3y = 0
3x + 0 = -18 + -3y
3x = -18 + -3y
Divide each side by '3'.
x = -6 + -1y
Simplifying
x = -6 + -1y
//////////////
Simplifying
2x + -4y = -6
Solving
2x + -4y = -6
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '4y' to each side of the equation.
2x + -4y + 4y = -6 + 4y
Combine like terms: -4y + 4y = 0
2x + 0 = -6 + 4y
2x = -6 + 4y
Divide each side by '2'.
x = -3 + 2y
Simplifying
x = -3 + 2y
Hello Please answer the questions below God Bless. If you could do step by step that would great.
what is the solution for X of the triangle which had an altitude of 8 and a leg of 16? *
X = 64
X = 20
X = 4
X = 0
Answer:
area =1/2 ×8×16=64
X=64 is answer
Answer:
In the video he said it was 4
Step-by-step explanation:
x/8=8/16
in order to be 1/2 x would equal 4
Answer this question and get 20 points!!
Answer:
24 Games
Step-by-step explanation:
Since 50 is half of 100, he is half way to finishing 100 games, so you would just multiply games won by two to see how much they are most likely going to win at the rate they are winning at.
The sale price of a new sofa is $865 and sales tax is figured at 0.10 times the price. What is the total amount paid for the sofa?
Answer:
$951.50
Step-by-step explanation:
need help please thxs
Answer:
C.
Step-by-step explanation:
40*(1/4)^0=40
40*(1/4)^1=10
And so on...
Answer:
Step-by-step explanation:
This is a geometric sequence of the form [tex]F=Ir^t\text{ where I=initial value, r=common ratio, and t=number of terms or time. Notice each term is 1/4 of the preceding term. This is the common ratio. So your equation is }f(x)=40\left(\frac{1}{4}\right)^x[/tex]
A nutrition label lists the serving size to be 2/3 of a cup. How many servings are in a 6 cup bag of almonds
A fire department needs to raise its
ladder to the 5th story window which is
approximately 55 feet off of the ground. The ladder
can extend to a length of 60 feet. This ladder is
already 8 feet off of the ground because it is on top
of the truck. If the ladder is fully extended when
reaching the window, how far away should the base
of the ladder be from the building? Round the
answer to the nearest foot.
A. 5 feet
B. 24 feet
C. 37 feet
D. 81 feet
Answer:
b, 24
Step-by-step explanation:
MAHT HELP ASAP!! MARKING BRAINLIEST!!!
Answer:
200 miles
Step-by-step explanation:
1 cm = 50 miles
4 x 1 = 4 x 50 = 200
Answer:200 miles
Step-by-step explanation:
50/1 ?/4 50*4=200
Find the slope of the line graphed below
Answer:
10
Step-by-step explanation:
The slope of the line is 10
Which shape below does not have rotation symmetry can someone help me on this question plzzz
The scale on Chelsea's map is 1 inch equals 35 miles. If the distance between two cities on the map is 4 inches, how many miles apart are the two cities?
Answer:
140 miles
Step-by-step explanation:
Given:
The scale on Chelsea's map is 1 inch equals 35 miles.
Distance between two cities on the map = 4 inches
To find: Distance between two cities in miles
Solution:
1 inches = 35 miles
Multiply both sides by 4.
4 inches = 4 × 35 miles = 140 miles
So,
The distance between two cities in miles is 140 miles.
Marie has a box that contains only red and blue marbles in a ratio of 5:45. What percent of the marbles in the box were red?
Answer:
10 percent
Step-by-step explanation:
t=ratio
5x:45x
total=45x+5x=50x
5x/50x=1/10=10 percent
A furniture company sells a desk for $1,435. It cost the company $817 to make the desk. Last month, 253 desks were sold. What is the total profit earned by the company from the desk last month?
Answer:
Net profit= $156,354
Step-by-step explanation:
Giving the following information:
A furniture company sells a desk for $1,435. It cost the company $817 to make the desk. Last month, 253 desks were sold.
To calculate the net profit, we need to use the following formula:
Net profit= number of units sold*(selling price - unitary cost)
Net profit= 253*(1,435 - 817)
Net profit= $156,354
Subject:Mathematics
The Answer is 2nd one
69.08 cmExplanation :Given :Radius of a circle = 11 cmTo Find : Circumference of the circle = ?Solution :As, we have radius of the circle is 11 cm and to find circumferemce, we have a formula :
[tex] \large \underline{\boxed{\bf{Circumference = 2\pi r}}}[/tex]
By filling value of r = 11 cm and π = 3.14, we have :
[tex] \sf : \implies Circumference = 2 \times 3.14 \times 11 \: cm[/tex]
[tex] \sf : \implies Circumference = 2 \times \dfrac{314}{100} \times 11 \: cm[/tex]
[tex] \sf : \implies Circumference = \dfrac{628}{100} \times 11 \: cm[/tex]
[tex] \sf : \implies Circumference = \dfrac{6908}{100} \: cm[/tex]
[tex] \sf : \implies Circumference = 69.08\: cm[/tex]
Hence, circumference of the circle is 69.08 cm.
1. i’ll give you brainliest if u get it right
Answer:
B
Step-by-step explanation:
just plug it in. (also just means divide it out)
There is a part A and B please answer correctly Please i am begging you Will mark you brainliest 15 points
Please EXPLAIN!
Answer: 4x + 2y
Step-by-step explanation: 1/2(6x-8y) = 3x - 4y
1/2 * 6x= 3x
1/2 * 8y = 4y
-3(x - 2y) = -3x + 6y
-3 * -2 = 6y
4x - 3x + 6y + 3x - 4y
= 4x + 2y
A round mirror has a radius of 5 centimeters. How long will the frame have to be to go around the mirror