Answer:
4.8 i think
Step-by-step explanation: i saw once it said dont worry bout the 0s just do the 43 divided by 9 and i think thats it
The atomic mass of a chemical element is the number of protons + number of neutrons in each atom of that element—electrons are ignored. Examples The atomic mass of hydrogen (H) is 1 (1 proton) and that of helium (He) is 4 (2 protons + 2 neutrons).
The gram atomic mass of a chemical element is the atomic mass of that element in grams. Example The gram atomic mass of H is 1 gram and that for He is 4 grams.
Astounding Fact There are approximately 6 x 1023 atoms in the gram atomic mass of every known chemical element. Examples There are 6 x 1023 atoms in 1 gram of H and in 4 grams of He. Hence, there are 12 x 1023 atoms, or 1.2 x 1024 atoms, in 2 grams of H and in 8 grams of He.
Standard carbon is Carbon 12, abbreviated C-12. Its atomic number is 12 (6 protons and 6 neutrons) and its gram atomic mass is therefore 12 grams.
How many atoms are there in 96 grams of C-12? (Read the exponents carefully.)
(a) 1.2 x 1024 atoms (b) 12 x 1023 atoms (c) 4.8 x 1023 atoms
(d) 4.8 x 1024 atoms (e) 96 x 1024 atoms (f) none of the above
Answer:
Step-by-step explanation:
First the gram will use the chemical explanation then you will put 1h gram the atomic mass .Then add 6 x 1023
Done done
Need help ASAP please
Answer:
x equals 9
Step-by-step explanation:
90 - 41 =49
49 - 22 = 27
27 ÷ 3 = 9
pls help or I fail my grade
Answer:
g= 32
n=5
k=32
Step-by-step explanation:
Answer:
g = 32
n = 5
k = 32
Step-by-step explanation:
g = 25 + 7 = 32
n = 9 - 4 = 5
k = 34 - 2 = 32
In the diagram shown below segments TU and QS perpendicularly bisect each other at point R. Which of
the theorems below would be used to show that AQRT = ASRU?
Answer:
SAS
Step-by-step explanation:
I had this question on my test
Jack and Jill are 432 meters apart, but are walking towards each other. Joe walks at a pace of 2 meters per second, while Jill walks at a pace of 3 meters per second. After how many seconds will they meet up?
Answer:
86.4 seconds.
Step-by-step explanation:
Given that Jack and Jill are 432 meters apart, but are walking towards each other, and Joe walks at a pace of 2 meters per second, while Jill walks at a pace of 3 meters per second, to determine after how many seconds will they meet up, the following calculation must be performed:
432 / (3 + 2) = X
432/5 = X
86.4 = X
So, Jack and Jill will meet after 86.4 seconds.
I need help with 20!
Answer:
C
Step-by-step explanation:
4 boxes: $3.79 is $0.9475 or $0.95
a. 6 boxes: $5.79 is $0.95833333333 or $0.96
b. 2 boxes: $1.96 is 0.98
c. 3 boxes: $2.79 is $0.93
d. 1 box: $0.97 os $0.97
0.98 > 0.97 > 0.96 > 0.95 > 0.93
Answer:
3rd answer choice: 3 for $2.79
Step-by-step explanation:
“You bought 4 boxes of facial tissues for $3.79.Which is a better buy than the one you bought?”
First, find the individual box cost for the given amount in the question. Divide the total cost ($3.79) with the amount of boxes (4) to get the individual amount:
$3.79/4 = ~0.9475, or $0.95
The first answer choice looks like 6 boxes for $5.75. Divide 6 from $5.75:
$5.75/6 = ~0.9583, or $0.96 (1 cent more)
The second answer choice looks like 2 boxes for $1.96. Divide 2 from $1.96:
$1.96/2 = 0.98, or $0.98 (3 cent more)
The third answer choice looks like 3 boxes for $2.79. Divide 3 from $2.79:
$2.79/3 = 0.93, or $0.93 (2 cents less).
The fourth answer choice looks like 1 for $0.97.
$0.97 (2 cents more)
~
In this case, the cheapest one by individual costs is the 3rd answer choice, as it is the cheapest by individual boxes.
HELP PLEASE!!!! 50 POINTS!!!GIVING BRAINLIEST!!
1. Elena donates some money to charity whenever she earns money as a babysitter. The table shows how much money, d, she donates for different amounts of money, m, that she earns.
a. What percent of her income does Elena donate to charity?
b.Which quantity, m or d, would be the better choice for the dependent variable in an equation describing the relationship between m and d.
PLEASE HELP!!! THANK YOU!!❤️
(a). Elena donates 12% of her income.
(b). d (amount donated) will be a better choice for the dependent variable, as it is always dependent on the income of Elena.
What is a dependent variable?You can control or set the independent variable. It affects the dependent variable, which changes as a result. The input is unrelated to the result, which is the dependent variable.
As per the given data:
money donated from money earned is given in the table.
For percent of her income donated to charity:
Total money donated / Total money earned
= (4.44 + 1.80 + 3.12 + 3.60 + 2.16) / (37 + 15 + 26 + 30 + 18)
= (15.12)/(126)
= 0.12
∴ Elena donates 12% of her income.
Hence, Elena donates 12% of her income and d (amount donated) will be a better choice for the dependent variable as it is always dependent on the income of Elena.
To learn more on dependent variable, click:
brainly.com/question/1479694
#SPJ3
Please answer if correct you get brainiest
Answer:
1. A.) Blocks a river and creates a large lake
2. D.) More plant-eating animals would survive
3. D.) Shorter time for plants to produce seeds.
4. B.) Raccoons found more food living near people
5. D.) Make it difficult for animals to move through the forest.
2.
Select the correct answer from the drop-down menu.
A coin is flipped 36 times. The least likely result for the coin to land on heads is
times.
Reset
Next
Answer:
30
Step-by-step explanation:
Just took the test
A Mathematics paper consists of 12 questions of which not more than ten are to be answered. Given that the number of candidates who answer ten questions is equal to the number of candidates who answer nine questions only. Find the probability that a candidate chosen at random from among these two sets of candidates will have selected questions 1, 2 and 3 if all the questions have the same chance of being selected.
Answer:
Im not entirely sure
Step-by-step explanation:
The sum of 5/2 and 6 times a number equals to 7/2 subtracted from seven times the number find the number
Answer:
1 / 13
Step-by-step explanation:
lets just say the number is 'x'
5/2 + 6x = 7/2 - 7x
6x + 7x = 7/2 - 5/2
13x = 2/2
13x = 1
x = 1/13
proving it
5/2 + 6 × 1/13 = 7/2 - 7 × 1/13
5/2 + 6/13 = 7/2 - 7/13, solving the fraction by finding the L.C.M will result in
77/26 = 77/26
Factor 4x2 + 4x + 1.
Answer:
(2x+1)²= (2x+1)(2x+1)
Step-by-step explanation:
(2x)²+2×2x×1+1²=(2x+1)²
please help me out with this
Solve by the quadratic formula.
a) 5
b) -1
c) 1
d) -1/2
e) 4
Answer:
I hope this helps a little bit.
Step-by-step explanation:
the answer is -1/2 or -1
H
G
If mZIOJ = 27and mZHOJ = 51°, then what is the measure of ZHOI?
78°
29°
b. 24°
d. 22°
c.
a.
Answer:
B) 24°
Step-by-step explanation:
51-27=24
.If your farm is 12 acres, how many square feet of land is your farm
522720 square feet if im not mistaken
The table gives the grouped frequency distribution for the lengths
of the electrical cords of 80 kettles.
Length, to the
nearest cm
49-53
54-58
59-63
64-68
Number of
kettles
7
37
33
3
Complete the cumulative frequency table.
Length (cm)
<48.5
<53.5
<58.5
<63.5
<68.5
Cumulative
frequency
0
7
Cumulaüve Frequency
View One Minute Version
Overview
Answer:
7,37,77,80 Is ur c.f and ur lengths r 48.5-53.5, 53.5-58.5, 58.5-63.5, 63.5-68.5
find the value of
18.5-6.69
Step-by-step explanation:
18.5-6.69
11.81
ms. Jackson's class is on a field trip to the museum of nature history.the cost for admission is$7per adult and$5per child
what is the answer of the question
Answer:
choice 2) 7/3π ft
Step-by-step explanation:
If m || n, solve for x.
Show your work.
Answer:
x = 6
Step-by-step explanation:
They are same side interior angles, so they add up to 180:
[tex]8x + 1 + 21x + 5 = 180\\29x + 6 = 180\\29x = 174\\x = 6[/tex]
use the expression 8 a + 16 C use the expression 8 a + 16 C Factor the expression using the GCF
Answer:
8(a+2c)
Step-by-step explanation:
Hey There!
If you didn't know the greatest common factor (GFC) is the largest number that all of the numbers can be divided by and have a whole number as the outcome
For this expression the GFC is 8 because both of the terms can be divided by 8 and have a whole number as a result
8a/8=a
16c/8=2c
So the factored version of 8a+16c is 8(a+2c)
A rectangular banner measures 3 ft by 7 ft. How much material do you need for seven banners?
Solve for c C^2-25-11
Which is a solution of tan x = square root of three divided by 3
Answer:
Which is a solution of tan x = square root of three divided by 3
Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making mistakes
Hi there!
[tex]\large\boxed{=7.5}}[/tex]
10 - 5c =
Solve by substituting in 0.5 for c:
10 - 5(0.5) =
Evaluate 5 · 0.5:
10 - 2.5 =
Solve:
10 - 2.5 = 7.5
When a certain basketball player takes his first shot in a game he succeeds with prob. 1/3. If he misses his first shot, he loses confidence and his second shot will go with prob. 1/4. If he misses his first 2 shots, his third shot will go with pro. 1/5. If he misses his first 3 shots, his fourth shot will go with prob. 1/6. If he misses his first 4 shots, the coach will remove hom from the game. Assume that the player keeps shooting until he succeeds or he is removed from the game. Let X denote the number of shots he misses until his first success or until he is removed from the game.
Required:
a. Compute the p.m.f. of X.
b. Compute E[X]
Solution :
Let the number of the shots that the player while playing misses until the first success = x
The random variable X can take the values {0, 1, 2, 3, 4}
[tex]$P(x=0)$[/tex] = probability of the player that does not misses the 1st shot
The probability of the player that he success at the 1st shot = [tex]$\frac{1}{3}$[/tex]
[tex]$P(x=1)$[/tex] = probability of the player that misses the 1st shot but succeeds in his 2nd shot [tex]$=\frac{2}{3} \times \frac{1}{4}$[/tex]
[tex]$=\frac{1}{6}$[/tex]
[tex]$P(x=2)$[/tex] = probability of the player that misses the 1st two shot but succeeds in the 3rd shot [tex]$=\frac{2}{3} \times \frac{3}{4}\times \frac{1}{5}$[/tex]
[tex]$=\frac{1}{10}$[/tex]
[tex]$P(x=3)$[/tex] = probability of the player that misses the 1st three shot but succeeds in the 4th shot [tex]$=\frac{2}{3} \times \frac{3}{4}\times \frac{4}{5} \times \frac{1}{6}$[/tex]
[tex]$=\frac{1}{15}$[/tex]
Similarly,
[tex]$P(x)$[/tex] = (probability of missing the 1st four shots) x (probability of removing te player after the 1st four shots missed)
[tex]$=\frac{2}{3} \times \frac{3}{4}\times \frac{4}{5} \times \frac{5}{6} \times 1$[/tex]
[tex]$=\frac{1}{3}$[/tex]
a). The p.m.f of the X
X = x 0 1 2 3 4
P(X=x) [tex]$\frac{1}{3}$[/tex] [tex]$\frac{1}{6}$[/tex] [tex]$\frac{1}{10}$[/tex] [tex]$\frac{1}{15}$[/tex] [tex]$\frac{1}{3}$[/tex]
b). [tex]$E(X) = \sum x \times P(X=x)$[/tex]
[tex]$= 0\times \frac{1}{3}+1\times \frac{1}{16}+2\times \frac{1}{10}+3\times \frac{1}{15}+4\times \frac{1}{3}$[/tex]
[tex]$=\frac{114}{60}$[/tex]
= 1.9
Simplify your answer
Answer:6
Step-by-step explanation:
10-:1(2)/(3)
Answer:
6 batches
Step-by-step explanation:
To find how many batches you would divide 10 by 1 and 2/3
10 ÷ 1 and 2/3 = 6
Look at the image to see division:
7
8. 74%,
0.68
10'
7
0.68,
to
74%
10?
b. 0.68, 74%,
10
74%. 0.68
10
7
74%, 0.68
10'
What is the sum of the interior angles of the polygon below?
Answer:
540
Step-by-step explanation:
you can draw 5 triangles from the center...
5*180-360 = 540