Answer:
6.64*10^(-9) moles of oxygen.
Step-by-step explanation:
If we have N molecules, the number of moles is given by:
n = N/Nₐ
where Nₐ is the Avogadro's number:
Nₐ = 6.02214076*10^23
In 2.000*10^15 molecules of sulfur dioxide, we have:
n = (2.000*10^15)/(6.02214076*10^23) = 3.32*10^(-9) moles of sulfur dioxide.
Now, sulfur dioxide has two oxygens and a single sulfur.
Then a mole of sulfur dioxide has two moles of oxygen and a single mol of sulfur.
Then in 3.32*10^(-9) moles of sulfur dioxide, we have twice that amount moles of oxygen, or:
2*3.32*10^(-9) = 6.64*10^(-9) moles of oxygen.
Can someone please help with this ASAP!!
Answer:
Area of 2 triangle = 1/2* base*height
= 1/2*21*20= 21*10= 210 cm ^2= 2*210= 420 cm^2
Step-by-step explanation:
Milan brought 18 packs of cola to a party, and each pack had 8 cans. Donna brought 9 cans of juice. How many cans did they bring in all?
cans
Answer:
I think its 72 cans
Tell me if I'm wrong!
A tree that is 12 feet tall casts a shadow that is 9 feet long. At the same time a nearby stop sign casts a shadow that is 6 feet long. What is the height, h , of the stop sign?
A. 4.5 ft
B. 7.3 ft
C. 8 ft
D. 9 ft
Answer:
height / shadow = height / shadow until sun moves or earth tilts
12/9 = h / 6
h = 6*12 /9 = (3*2*3*4 ) / (3*3) = 2 * 4 = 8
So C. 8ft
Help meee please I need help
Answer:
A
Step-by-step explanation:
[tex]d^2+16^2=25^2\\d^2+256=625\\d^2=368\\d=19.2[/tex]
Answer:
The answer is D. 47 meters.
What is the inverse of f(x)=1.5^x+4
Answer:
Step-by-step explanation:
The inverse function of [tex]f(x) = 1.5^x + 4[/tex] is [tex]f^{-1}(x) = \log1.5(x - 4)[/tex]
In other words, the required answer is [tex]f^{-1}(x) = \log1.5(x - 4)[/tex]
To find the inverse of the function[tex]f(x) = 1.5^x + 4[/tex], we need to swap the roles of x and y and solve for y.
Start with the original function:
[tex]y = 1.5^x + 4[/tex]
Swap x and y:
[tex]x = 1.5^y + 4[/tex]
Solve for y:
Subtract 4 from both sides:
[tex]x - 4 = 1.5^y[/tex]
Take the logarithm (base 1.5) of both sides:
[tex]\log1.5(x - 4) = y[/tex]
Rewrite the equation with y as the subject:
y = log1.5(x - 4)
Therefore, the inverse function of [tex]f(x) = 1.5^x + 4[/tex] is [tex]f^{-1}(x) = \log1.5(x - 4)[/tex]
In other words, the required answer is [tex]f^{-1}(x) = \log1.5(x - 4)[/tex]
Learn more about inverse functions here:
https://brainly.com/question/29141206
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heyy! i’ll give brainliest please help
Answer:
they held yearly elections so I would say democracy but I'm not 100% sure
It takes exactly 26 paper clips laid end to end to make 17 7/8 inches. How long is each paper clip? (I really need the explanation)
Answer:
11/16 inch or 0.6875 inch
Step-by-step explanation:
26 * x = 17 7/8
17 7/8 = 143/8
143/8 ÷ 26 = 143/8 x 1/26 = 143/208 = 0.6875
0.6875 in = 11/16 in
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Check
11/16 x 26 = 17.875 or 17 7/8
The side lengths of a triangle are 5, 12, and 13, is this a right triangle?
Answer:
D.
Step-by-step explanation:
Answer:
The answer is D
Step-by-step explanation:
Choose D.......
Tell me if its a function or not plz help its due today am giving brainliest ppppppppppllllllzzzzzz
Answer:
#5 is a function, #6 is not a function
Step-by-step explanation:
what is the missing exponent?
17 / 17^4 = 17^8
Answer:
The missing exponent is 12.
Step-by-step explanation:
Whenever you divide same-base exponents, you keep the base numbers the same and subtract the exponents.
The only number subtracted by 4 that would give you 8 is 12.
Or, if the numbers are larger, it is must easier to add the exponent in the answer to the number in the equation.
For example,
[tex]17^4+17^8=17^1^2[/tex]
Therefore, the missing exponent is 12.
Because: [tex]17^1^2/17^4=17^8[/tex]
please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
angle measures to the.
Step-by-step explanation:
I don't know if it is a choice but if you not do measure and multiply If my answer is wrong. Hope not.
Completing the
Rewrite the equation by completing the square.
x^2-14x+33=0
Answer:
11,3
Step-by-step explanation:
Answer:
It is -7 and 16
Step-by-step explanation:
Khan
A highway makes an angle of 6 degrees with the horizontal. This angle is maintained for a horizontal distance of 8 miles
Complete Question
A highway makes an angle of 6 degrees with the horizontal. This angle is maintained for a horizontal distance of 8 miles
To the nearest hundredth of a mile, how high does the highway rise in this
*mile section?
Answer:
[tex]h=0.84miles[/tex]
Step-by-step explanation:
From the question we are told that:
Angle [tex]\theta = 6 \textdegree[/tex]
Horizontal distance traveled [tex]d=8miles[/tex]
Generally the Trigonometric equation for Height is mathematically given by
[tex]Tan \theta=\frac{h}{5}[/tex]
[tex]h=8*tan(6)[/tex]
[tex]h=0.84miles[/tex]
Anyone thats smart ash amosc rvcklessray and Ill $$$ you please
I'm not sure if this is fully in English or not ><
sorry I cant help:3
There are 30 people entered into a contest. How many ways can the contestants win first, second, third, and fourth place?
Answer:
I am not entirely sure so don't kill me if it's wrong qwq
Step-by-step explanation:
Well assuming P represents the number of outcomes, n the number of competitors and r the number of places to be awarded.
P = n!
(n−r)!
P=30! /
(30-4)!
P=30!/26!
P=657720
please I need help.
Part of a stained glass window is shown at the right. Each square in the grid is 1 in. long. Find the perimeter and area of the dark gray parallelogram.
Answer:
Perimeter: 5 in
Area: 9 in^2
Step-by-step explanation:
In the 2004 Summer Olympics, Adam van Koeverden of Oakville, Ontario, won two medals. He won the gold medal in the men’s 500 m kayak race, with a time of 1 min 37.9 s. He also won the bronze medal in the 1000 m race, with a time of 3 min 28.2 s. In which race did he row with greater speed?
Answer: 500 meters
Step-by-step explanation:
Since he won the gold medal in the men’s 500 m kayak race, with a time of 1 min 37.9 s, the speed will be:
= Distance/Time
= 500m/1 min 37.9s
= 500m/97.9s
= 5.11m/s
Since he also won the bronze medal in the 1000 m race, with a time of 3 min 28.2s, the speed will be:
= Distance/Time
= 1000/3 min 28.2s
= 1000m/208.2s
= 4.80m/s
Therefore, he rowed with greater speed in the 500 meters.
Note that 60seconds = 1 minute
PLEASE QUICK I ONLY HAVE 11 MINS I NEED THIS ONE QUICK!
WILL GIVE BRAINLY
Answer:
the answer is 7 feet
2πr/2π=14π/2π
r=7 feet
Y is 5 times more than x
Answer:
y = 5x
Step-by-step explanation:
Form the equation:
y = 5 times x or y = 5x
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
HELP ILL GIVE BRAINLIEST
Answer:
Option 'a' is the correct answer.
confused on how to read the diagram for the questions..
Answer:
mode in class 8A = 157 cm
mode in class 8B = 176 cm
median in class 8B = 165 cm
range in class 8A = 173-148= 25 cm
• many students class 8A are taller than class 8B
• the tallest student is in class 8B
I need help for this question
9514 1404 393
Answer:
a) Cat
b) 8
c) 6
Step-by-step explanation:
a) Each line contains one large square, at least. The smallest additional area is on the Cat line. Apparently, the fewest people preferred cats.
__
b) The smaller symbols appear to represent 1/4, 1/2, and 3/4 of the larger square. On that basis, we can add all of the symbols to discover there are a total of 10 of them:
1 1/4 +1 3/4 +2 1/2 +1 1/2 + 3 = 8 + (1/4 +3/4) +(1/2 +1/2) = 8 +1 +1 = 10
Since 10 symbols represent 80 people, each large square symbol must represent 8 people.
__
c) The number preferring dogs is (1 3/4)(8) = 14. The number preferring giraffes is (2 1/2)(8) = 20. Then 20 -14 = 6 more people preferred giraffes.
Answer:
cat,8,6
Step-by-step explanation:
i think im not sure
Andre sells T-shirts. He charges
customers $19 per T-shirt, plus a delivery
fee of $8 per order. The amount, y, that
Andre charges for an order of x T-shirts is
represented by the equation y = 19x + 8. A
customer paid $217 for an order of
T-shirts. How many T-shirts did the
customer order?
Answer:
11
Step-by-step explanation:
217 = 19x + 8
209 = 19x
x = 209/19
x = 11
Bob has a coin cup with four $1 tokens and two $5 tokens in it. He also has two $10 tokens and one $25 token in his pocket.
He randomly draws a token froin the cup, and then randomly draws a token from his pocket. What is the probability that he
will draw $30 in tokens?
OB.
. В
We want to find the probability that Bob will randomly draw $30 in tokens. We will find that the probability is P = 1/6 = 0.167
Finding the probability.
The only case where he draws $30 randomly is when:
He takes one $5 token from the coin cupHe takes the $25 token from his pocket.Then we need to find the probabilities for these two events.
For the first one, the probability will be equal to the quotient between the number of $5 tokens and the total number of tokens in the cup. There are 6 tokens in the cup and 2 of these are $5 tokens, then the probability is:
p = 2/6 = 1/3
For the second event the probability is computed in the same way, he has two tokens in his pocket and one of them is a $25 token, then the probability is:
q = 1/2
The joint probability, the probability that both of these events happen at the same time, is given by the product of the individual probabilities, so we get:
P = p*q = (1/3)*(1/2) = 1/6 = 0.167
So the probability that he draws $30 in tokens is P = 1/6 = 0.167.
If you want to learn more about probability, you can read:
https://brainly.com/question/251701
Answer:
4/9
Step-by-step explanation:
can some one explain please
What is the appropriate equation used to find the value of n?
Answer:
B
Step-by-step explanation:
It's B, because it's the only way to find n on both sides
find the common difference of the arithmetic sequence -2, -11/4, -7/2
Answer = 3/4
First, change them all into like fractions.
-2, -11/4, -7/2 = -8/4, -11/4, -14/4
Therefore the common difference of their arithmetic sequence is 3/4
Hope it helps u.
Please mark the brainliest
Thank You
I need help plzzzzzzzzzzz
Answer:
D. infinite
Step-by-step explanation:
Please help!!! How do I do this? What is X and how do I find it?
Answer:
[tex]x = 6 \sqrt{3} [/tex]
Step-by-step explanation:
[tex]x = \sqrt{ {12 }^{2} - {6}^{2} } = 6 \sqrt{3} [/tex]
Please help me with this one
Answer:
19.1 cm
Step-by-step explanation:
the other side = √8.1²-7.1²=√65.61- 50.41
= √15.20 = 3.9
perimeter = 7.1+8.1+3.9= 19.1 cm